Uses of Class java.lang.Class (Java SE 21 & JDK 21)

Packages that use Class

Package

Description

com.sun.java.accessibility.util

Provides a collection of interfaces and classes that compose the Java Accessibility Utilities.

com.sun.source.tree

Provides interfaces to represent source code as abstract syntax trees (AST).

java.awt

Contains all of the classes for creating user interfaces and for painting graphics and images.

java.awt.datatransfer

Provides interfaces and classes for transferring data between and within applications.

java.awt.dnd

Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.

java.awt.image.renderable

Provides classes and interfaces for producing rendering-independent images.

java.beans

Contains classes related to developing beans -- components based on the JavaBeans architecture.

java.beans.beancontext

Provides classes and interfaces relating to bean context.

java.io

Provides for system input and output through data streams, serialization and the file system.

java.lang

Provides classes that are fundamental to the design of the Java programming language.

java.lang.annotation

Provides library support for the Java programming language annotation facility.

java.lang.constant

Classes and interfaces to represent nominal descriptors for run-time entities such as classes or method handles, and classfile entities such as constant pool entries or invokedynamic call sites.

java.lang.foreign

Provides low-level access to memory and functions outside the Java runtime.

java.lang.instrument

Provides services that allow Java programming language agents to instrument programs running on the Java Virtual Machine (JVM).

java.lang.invoke

The java.lang.invoke package provides low-level primitives for interacting with the Java Virtual Machine.

java.lang.management

Provides the management interfaces for monitoring and management of the Java virtual machine and other components in the Java runtime.

java.lang.reflect

Provides classes and interfaces for obtaining reflective information about classes and objects.

java.lang.runtime

The java.lang.runtime package provides low-level runtime support for the Java language.

java.net

Provides the classes for implementing networking applications.

java.nio.file

Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.

java.nio.file.spi

Service-provider classes for the java.nio.file package.

java.rmi.server

Provides classes and interfaces for supporting the server side of RMI.

java.security

Provides the classes and interfaces for the security framework.

java.sql

Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java programming language.

java.util

Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.

java.util.concurrent.atomic

A small toolkit of classes that support lock-free thread-safe programming on single variables.

java.util.prefs

This package allows applications to store and retrieve user and system preference and configuration data.

javax.annotation.processing

Facilities for declaring annotation processors and for allowing annotation processors to communicate with an annotation processing tool environment.

javax.crypto

Provides the classes and interfaces for cryptographic operations.

javax.imageio.metadata

A package of the Java Image I/O API dealing with reading and writing metadata.

javax.imageio.spi

A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.

javax.lang.model

Types and hierarchies of packages comprising a Java language model, a model of the declarations and types of the Java programming language.

javax.lang.model.element

Interfaces used to model elements of the Java programming language.

javax.lang.model.type

Interfaces used to model Java programming language types.

javax.management

Provides the core classes for the Java Management Extensions.

javax.management.loading

Provides the classes which implement advanced dynamic loading.

javax.management.openmbean

Provides the open data types and Open MBean descriptor classes.

javax.naming.spi

Provides the means for dynamically plugging in support for accessing naming and directory services through the javax.naming and related packages.

javax.print

Provides the principal classes and interfaces for the Java Print Service API.

javax.print.attribute

Provides classes and interfaces that describe the types of Java Print Service attributes and how they can be collected into attribute sets.

javax.print.attribute.standard

Package javax.print.attribute.standard contains classes for specific printing attributes.

javax.script

The scripting API consists of interfaces and classes that define Java Scripting Engines and provides a framework for their use in Java applications.

javax.security.auth

This package provides a framework for authentication and authorization.

javax.sound.midi

Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.

javax.sound.sampled

Provides interfaces and classes for capture, processing, and playback of sampled audio data.

javax.sql

Provides the API for server side data source access and processing from the Java programming language.

javax.sql.rowset

Standard interfaces and base classes for JDBC RowSet implementations.

javax.sql.rowset.serial

Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.

javax.swing

Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.

javax.swing.event

Provides for events fired by Swing components.

javax.swing.plaf.synth

Synth is a skinnable look and feel in which all painting is delegated.

javax.swing.table

Provides classes and interfaces for dealing with javax.swing.JTable.

javax.swing.text

Provides classes and interfaces that deal with editable and noneditable text components.

javax.swing.tree

Provides classes and interfaces for dealing with javax.swing.JTree.

javax.tools

Provides interfaces for tools which can be invoked from a program, for example, compilers.

javax.xml.xpath

Provides an object-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.

jdk.dynalink.beans

Contains the linker for ordinary Java objects.

jdk.dynalink.linker

Contains interfaces and classes needed by language runtimes to implement their own language-specific object models and type conversions.

jdk.dynalink.linker.support

Contains classes that make it more convenient for language runtimes to implement their own language-specific object models and type conversions by providing basic implementations of some classes as well as various utilities.

jdk.incubator.vector

Incubating Feature. Will be removed in a future release.

jdk.jfr

This package provides classes to create events and control Flight Recorder.

jdk.jfr.consumer

This package contains classes for consuming Flight Recorder data.

jdk.jshell.execution

Provides implementation support for building JShell execution engines.

jdk.net

Platform specific socket options for the java.net and java.nio.channels socket classes.

Uses of Class in com.sun.java.accessibility.util

Methods in com.sun.java.accessibility.util that return Class

Modifier and Type

Method

Description

protected static Class<?>

Translator.getTranslatorClass(Class<?> c)

Find a translator for this class.

Methods in com.sun.java.accessibility.util with parameters of type Class

Modifier and Type

Method

Description

void

AccessibilityListenerList.add(Class<? extends EventListener> t, EventListener l)

Add the listener as a listener of the specified type.

int

AccessibilityListenerList.getListenerCount(Class<? extends EventListener> t)

Return the total number of listeners of the supplied type for this listener list.

protected static Class<?>

Translator.getTranslatorClass(Class<?> c)

Find a translator for this class.

void

AccessibilityListenerList.remove(Class<? extends EventListener> t, EventListener l)

Remove the listener as a listener of the specified type.
Uses of Class in com.sun.source.tree

Methods in com.sun.source.tree that return Class

Modifier and Type

Method

Description

Class<? extends Tree>

Tree.Kind.asInterface()

Returns the associated interface type that uses this kind.
Uses of Class in java.awt

Methods in java.awt with parameters of type Class

Modifier and Type

Method

Description

<T extends DragGestureRecognizer> T

Toolkit.createDragGestureRecognizer(Class<T> abstractRecognizerClass, DragSource ds, Component c, int srcActions, DragGestureListener dgl)

Creates a concrete, platform dependent, subclass of the abstract DragGestureRecognizer class requested, and associates it with the DragSource, Component and DragGestureListener specified.

static <T extends EventListener> T[]

AWTEventMulticaster.getListeners(EventListener l, Class<T> listenerType)

Returns an array of all the objects chained as FooListeners by the specified java.util.EventListener.

<T extends EventListener> T[]

Button.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Button.

<T extends EventListener> T[]

Checkbox.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Checkbox.

<T extends EventListener> T[]

CheckboxMenuItem.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this CheckboxMenuItem.

<T extends EventListener> T[]

Choice.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Choice.

<T extends EventListener> T[]

Component.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Component.

<T extends EventListener> T[]

Container.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Container.

<T extends EventListener> T[]

List.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this List.

<T extends EventListener> T[]

MenuItem.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this MenuItem.

<T extends EventListener> T[]

Scrollbar.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Scrollbar.

<T extends EventListener> T[]

TextComponent.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this TextComponent.

<T extends EventListener> T[]

TextField.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this TextField.

<T extends EventListener> T[]

Window.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Window.

protected static void

AWTKeyStroke.registerSubclass(Class<?> subclass)

Deprecated.
Uses of Class in java.awt.datatransfer

Methods in java.awt.datatransfer that return Class

Modifier and Type

Method

Description

final Class<?>

DataFlavor.getDefaultRepresentationClass()

Returns the default representation class.

Class<?>

DataFlavor.getRepresentationClass()

Returns the Class which objects supporting this DataFlavor will return when this DataFlavor is requested.

protected static final Class<?>

DataFlavor.tryToLoadClass(String className, ClassLoader fallback)

Tries to load a class from: the bootstrap loader, the system loader, the context loader (if one is present) and finally the loader specified.

Constructors in java.awt.datatransfer with parameters of type Class

Modifier

Constructor

Description

DataFlavor(Class<?> representationClass, String humanPresentableName)

Constructs a DataFlavor that represents a Java class.
Uses of Class in java.awt.dnd

Methods in java.awt.dnd with parameters of type Class

Modifier and Type

Method

Description

<T extends DragGestureRecognizer> T

DragSource.createDragGestureRecognizer(Class<T> recognizerAbstractClass, Component c, int actions, DragGestureListener dgl)

Creates a new DragGestureRecognizer that implements the specified abstract subclass of DragGestureRecognizer, and sets the specified Component and DragGestureListener on the newly created object.

<T extends EventListener> T[]

DragSource.getListeners(Class<T> listenerType)

Gets all the objects currently registered as FooListeners upon this DragSource.
Uses of Class in java.awt.image.renderable

Methods in java.awt.image.renderable that return Class

Modifier and Type

Method

Description

Class<?>[]

ParameterBlock.getParamClasses()

Returns an array of Class objects describing the types of the parameters.
Uses of Class in java.beans

Methods in java.beans that return Class

Modifier and Type

Method

Description

Class<?>

BeanDescriptor.getBeanClass()

Gets the bean's Class object.

Class<?>

BeanDescriptor.getCustomizerClass()

Gets the Class object for the bean's customizer.

Class<?>

IndexedPropertyDescriptor.getIndexedPropertyType()

Returns the Java type info for the indexed property.

Class<?>

EventSetDescriptor.getListenerType()

Gets the Class object for the target interface.

Class<?>

PropertyDescriptor.getPropertyEditorClass()

Gets any explicit PropertyEditor Class that has been registered for this property.

Class<?>

PropertyDescriptor.getPropertyType()

Returns the Java type info for the property.

Methods in java.beans with parameters of type Class

Modifier and Type

Method

Description

static <T> T

EventHandler.create(Class<T> listenerInterface, Object target, String action)

Creates an implementation of listenerInterface in which all of the methods in the listener interface apply the handler's action to the target.

static <T> T

EventHandler.create(Class<T> listenerInterface, Object target, String action, String eventPropertyName)

/** Creates an implementation of listenerInterface in which all of the methods pass the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.

static <T> T

EventHandler.create(Class<T> listenerInterface, Object target, String action, String eventPropertyName, String listenerMethodName)

Creates an implementation of listenerInterface in which the method named listenerMethodName passes the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.

static PropertyEditor

PropertyEditorManager.findEditor(Class<?> targetType)

Locate a value editor for a given target type.

static void

Introspector.flushFromCaches(Class<?> clz)

Flush the Introspector's internal cached information for a given class.

static BeanInfo

Introspector.getBeanInfo(Class<?> beanClass)

Introspect on a Java Bean and learn about all its properties, exposed methods, and events.

static BeanInfo

Introspector.getBeanInfo(Class<?> beanClass, int flags)

Introspect on a Java bean and learn about all its properties, exposed methods, and events, subject to some control flags.

static BeanInfo

Introspector.getBeanInfo(Class<?> beanClass, Class<?> stopClass)

Introspect on a Java bean and learn all about its properties, exposed methods, below a given "stop" point.

static BeanInfo

Introspector.getBeanInfo(Class<?> beanClass, Class<?> stopClass, int flags)

Introspect on a Java Bean and learn about all its properties, exposed methods and events, below a given stopClass point subject to some control flags.

static Object

Beans.getInstanceOf(Object bean, Class<?> targetType)

From a given bean, obtain an object representing a specified type view of that source object.

PersistenceDelegate

Encoder.getPersistenceDelegate(Class<?> type)

Returns the persistence delegate for the given type.

protected void

DefaultPersistenceDelegate.initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out)

This default implementation of the initialize method assumes all state held in objects of this type is exposed via the matching pairs of "setter" and "getter" methods in the order they are returned by the Introspector.

protected void

PersistenceDelegate.initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out)

Produce a series of statements with side effects on newInstance so that the new instance becomes equivalent to oldInstance.

static boolean

Beans.isInstanceOf(Object bean, Class<?> targetType)

Check if a bean can be viewed as a given target type.

static void

PropertyEditorManager.registerEditor(Class<?> targetType, Class<?> editorClass)

Registers an editor class to edit values of the given target class.

void

Encoder.setPersistenceDelegate(Class<?> type, PersistenceDelegate delegate)

Associates the specified persistence delegate with the given type.

void

PropertyDescriptor.setPropertyEditorClass(Class<?> propertyEditorClass)

Normally PropertyEditors will be found using the PropertyEditorManager.

Constructors in java.beans with parameters of type Class

Modifier

Constructor

Description

BeanDescriptor(Class<?> beanClass)

Create a BeanDescriptor for a bean that doesn't have a customizer.

BeanDescriptor(Class<?> beanClass, Class<?> customizerClass)

Create a BeanDescriptor for a bean that has a customizer.

EventSetDescriptor(Class<?> sourceClass, String eventSetName, Class<?> listenerType, String listenerMethodName)

Creates an EventSetDescriptor assuming that you are following the most simple standard design pattern where a named event "fred" is (1) delivered as a call on the single method of interface FredListener, (2) has a single argument of type FredEvent, and (3) where the FredListener may be registered with a call on an addFredListener method of the source component and removed with a call on a removeFredListener method.

EventSetDescriptor(Class<?> sourceClass, String eventSetName, Class<?> listenerType, String[] listenerMethodNames, String addListenerMethodName, String removeListenerMethodName)

Creates an EventSetDescriptor from scratch using string names.

EventSetDescriptor(Class<?> sourceClass, String eventSetName, Class<?> listenerType, String[] listenerMethodNames, String addListenerMethodName, String removeListenerMethodName, String getListenerMethodName)

This constructor creates an EventSetDescriptor from scratch using string names.

EventSetDescriptor(String eventSetName, Class<?> listenerType, MethodDescriptor[] listenerMethodDescriptors, Method addListenerMethod, Method removeListenerMethod)

Creates an EventSetDescriptor from scratch using java.lang.reflect.MethodDescriptor and java.lang.Class objects.

EventSetDescriptor(String eventSetName, Class<?> listenerType, Method[] listenerMethods, Method addListenerMethod, Method removeListenerMethod)

Creates an EventSetDescriptor from scratch using java.lang.reflect.Method and java.lang.Class objects.

EventSetDescriptor(String eventSetName, Class<?> listenerType, Method[] listenerMethods, Method addListenerMethod, Method removeListenerMethod, Method getListenerMethod)

This constructor creates an EventSetDescriptor from scratch using java.lang.reflect.Method and java.lang.Class objects.

IndexedPropertyDescriptor(String propertyName, Class<?> beanClass)

This constructor constructs an IndexedPropertyDescriptor for a property that follows the standard Java conventions by having getFoo and setFoo accessor methods, for both indexed access and array access.

IndexedPropertyDescriptor(String propertyName, Class<?> beanClass, String readMethodName, String writeMethodName, String indexedReadMethodName, String indexedWriteMethodName)

This constructor takes the name of a simple property, and method names for reading and writing the property, both indexed and non-indexed.

PropertyDescriptor(String propertyName, Class<?> beanClass)

Constructs a PropertyDescriptor for a property that follows the standard Java convention by having getFoo and setFoo accessor methods.

PropertyDescriptor(String propertyName, Class<?> beanClass, String readMethodName, String writeMethodName)

This constructor takes the name of a simple property, and method names for reading and writing the property.
Uses of Class in java.beans.beancontext

Fields in java.beans.beancontext declared as Class

Modifier and Type

Field

Description

protected Class<?>

BeanContextServiceAvailableEvent.serviceClass

A Class reference to the newly available service

protected Class<?>

BeanContextServiceRevokedEvent.serviceClass

A Class reference to the service that is being revoked.

Methods in java.beans.beancontext that return Class

Modifier and Type

Method

Description

Class<?>

BeanContextServiceAvailableEvent.getServiceClass()

Gets the service class that is the subject of this notification.

Class<?>

BeanContextServiceRevokedEvent.getServiceClass()

Gets the service class that is the subject of this notification

Methods in java.beans.beancontext with parameters of type Class

Modifier and Type

Method

Description

boolean

BeanContextServices.addService(Class<?> serviceClass, BeanContextServiceProvider serviceProvider)

Adds a service to this BeanContext.

boolean

BeanContextServicesSupport.addService(Class<?> serviceClass, BeanContextServiceProvider bcsp)

add a service

protected boolean

BeanContextServicesSupport.addService(Class<?> serviceClass, BeanContextServiceProvider bcsp, boolean fireEvent)

add a service

protected static final boolean

BeanContextSupport.classEquals(Class<?> first, Class<?> second)

Tests to see if two class objects, or their names are equal.

protected BeanContextServicesSupport.BCSSServiceProvider

BeanContextServicesSupport.createBCSSServiceProvider(Class<?> sc, BeanContextServiceProvider bcsp)

subclasses can override this method to create new subclasses of BCSSServiceProvider without having to override addService() in order to instantiate.

protected final void

BeanContextServicesSupport.fireServiceAdded(Class<?> serviceClass)

Fires a BeanContextServiceEvent notifying of a new service.

protected final void

BeanContextServicesSupport.fireServiceRevoked(Class<?> serviceClass, boolean revokeNow)

Fires a BeanContextServiceRevokedEvent indicating that a particular service is no longer available.

Iterator<?>

BeanContextServiceProvider.getCurrentServiceSelectors(BeanContextServices bcs, Class<?> serviceClass)

Invoked by BeanContextServices, this method gets the current service selectors for the specified service.

Iterator<?>

BeanContextServices.getCurrentServiceSelectors(Class<?> serviceClass)

Gets the list of service dependent service parameters (Service Selectors) for the specified service, by calling getCurrentServiceSelectors() on the underlying BeanContextServiceProvider.

Iterator<?>

BeanContextServicesSupport.BCSSProxyServiceProvider.getCurrentServiceSelectors(BeanContextServices bcs, Class<?> serviceClass)

Iterator<?>

BeanContextServicesSupport.getCurrentServiceSelectors(Class<?> serviceClass)

Object

BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class<?> serviceClass, Object serviceSelector)

Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.

Object

BeanContextServices.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)

A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.

Object

BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class<?> serviceClass, Object serviceSelector)

Object

BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class<?> serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl)

obtain a service which may be delegated

boolean

BeanContextServices.hasService(Class<?> serviceClass)

Reports whether or not a given service is currently available from this context.

boolean

BeanContextServicesSupport.hasService(Class<?> serviceClass)

has a service, which may be delegated

boolean

BeanContextServiceRevokedEvent.isServiceClass(Class<?> service)

Checks this event to determine whether or not the service being revoked is of a particular class.

void

BeanContextServices.revokeService(Class<?> serviceClass, BeanContextServiceProvider serviceProvider, boolean revokeCurrentServicesNow)

BeanContextServiceProviders wishing to remove a currently registered service from this context may do so via invocation of this method.

void

BeanContextServicesSupport.revokeService(Class<?> serviceClass, BeanContextServiceProvider bcsp, boolean revokeCurrentServicesNow)

remove a service

Constructors in java.beans.beancontext with parameters of type Class

Modifier

Constructor

Description

BeanContextServiceAvailableEvent(BeanContextServices bcs, Class<?> sc)

Construct a BeanContextAvailableServiceEvent.

BeanContextServiceRevokedEvent(BeanContextServices bcs, Class<?> sc, boolean invalidate)

Construct a BeanContextServiceEvent.
Uses of Class in java.io

Methods in java.io that return Class

Modifier and Type

Method

Description

Class<?>

ObjectStreamClass.forClass()

Return the class in the local VM that this version is mapped to.

Class<?>

ObjectStreamField.getType()

Get the type of the field.

protected Class<?>

ObjectInputStream.resolveClass(ObjectStreamClass desc)

Load the local class equivalent of the specified stream class description.

protected Class<?>

ObjectInputStream.resolveProxyClass(String[] interfaces)

Returns a proxy class that implements the interfaces named in a proxy class descriptor; subclasses may implement this method to read custom data from the stream along with the descriptors for dynamic proxy classes, allowing them to use an alternate loading mechanism for the interfaces and the proxy class.

Class<?>

ObjectInputFilter.FilterInfo.serialClass()

The class of an object being deserialized.

Methods in java.io with parameters of type Class

Modifier and Type

Method

Description

protected void

ObjectOutputStream.annotateClass(Class<?> cl)

Subclasses may implement this method to allow class data to be stored in the stream.

protected void

ObjectOutputStream.annotateProxyClass(Class<?> cl)

Subclasses may implement this method to store custom data in the stream along with descriptors for dynamic proxy classes.

static ObjectStreamClass

ObjectStreamClass.lookup(Class<?> cl)

Find the descriptor for a class that can be serialized.

static ObjectStreamClass

ObjectStreamClass.lookupAny(Class<?> cl)

Returns the descriptor for any class, regardless of whether it implements Serializable.

Method parameters in java.io with type arguments of type Class

Modifier and Type

Method

Description

static ObjectInputFilter

ObjectInputFilter.allowFilter(Predicate<Class<?>> predicate, ObjectInputFilter.Status otherStatus)

Returns a filter that returns Status.ALLOWED if the predicate on the class is true.

static ObjectInputFilter

ObjectInputFilter.rejectFilter(Predicate<Class<?>> predicate, ObjectInputFilter.Status otherStatus)

Returns a filter that returns Status.REJECTED if the predicate on the class is true.

Constructors in java.io with parameters of type Class

Modifier

Constructor

Description

ObjectStreamField(String name, Class<?> type)

Create a Serializable field with the specified type.

ObjectStreamField(String name, Class<?> type, boolean unshared)

Creates an ObjectStreamField representing a serializable field with the given name and type.
Uses of Class in java.lang

Fields in java.lang declared as Class

Modifier and Type

Field

Description

static final Class<Boolean>

Boolean.TYPE

The Class object representing the primitive type boolean.

static final Class<Byte>

Byte.TYPE

The Class instance representing the primitive type byte.

static final Class<Character>

Character.TYPE

The Class instance representing the primitive type char.

static final Class<Double>

Double.TYPE

The Class instance representing the primitive type double.

static final Class<Float>

Float.TYPE

The Class instance representing the primitive type float.

static final Class<Integer>

Integer.TYPE

The Class instance representing the primitive type int.

static final Class<Long>

Long.TYPE

The Class instance representing the primitive type long.

static final Class<Short>

Short.TYPE

The Class instance representing the primitive type short.

static final Class<Void>

Void.TYPE

The Class object representing the pseudo-type corresponding to the keyword void.

Methods in java.lang that return Class

Modifier and Type

Method

Description

Class<?>

Class.arrayType()

Returns a Class for an array type whose component type is described by this Class.

 Class<? extends U>

Class.asSubclass(Class clazz)

Casts this Class object to represent a subclass of the class represented by the specified class object.

Class<?>

Class.componentType()

Returns the component type of this Class, if it describes an array type, or null otherwise.

protected final Class<?>

ClassLoader.defineClass(byte[] b, int off, int len)

Deprecated.
Replaced by defineClass(String, byte[], int, int)

protected final Class<?>

ClassLoader.defineClass(String name, byte[] b, int off, int len)

Converts an array of bytes into an instance of class Class.

protected final Class<?>

ClassLoader.defineClass(String name, byte[] b, int off, int len, ProtectionDomain protectionDomain)

Converts an array of bytes into an instance of class Class, with a given ProtectionDomain.

protected final Class<?>

ClassLoader.defineClass(String name, ByteBuffer b, ProtectionDomain protectionDomain)

Converts a ByteBuffer into an instance of class Class, with the given ProtectionDomain.

Class<? extends Enum>

EnumConstantNotPresentException.enumType()

Returns the type of the missing enum constant.

protected Class<?>

ClassLoader.findClass(String name)

Finds the class with the specified binary name.

protected Class<?>

ClassLoader.findClass(String moduleName, String name)

Finds the class with the given binary name in a module defined to this class loader.

protected final Class<?>

ClassLoader.findLoadedClass(String name)

Returns the class with the given binary name if this loader has been recorded by the Java virtual machine as an initiating loader of a class with that binary name.

protected final Class<?>

ClassLoader.findSystemClass(String name)

Finds a class with the specified binary name, loading it if necessary.

static Class<?>

Class.forName(Module module, String name)

Returns the Class with the given binary name in the given module.

static Class<?>

Class.forName(String className)

Returns the Class object associated with the class or interface with the given string name.

static Class<?>

Class.forName(String name, boolean initialize, ClassLoader loader)

Returns the Class object associated with the class or interface with the given string name, using the given class loader.

Class<?>

StackWalker.getCallerClass()

Gets the Class object of the caller who invoked the method that invoked getCallerClass.

final Class<?>

Object.getClass()

Returns the runtime class of this Object.

protected Class<?>[]

SecurityManager.getClassContext()

Deprecated, for removal: This API element is subject to removal in a future version.

Returns the current execution stack as an array of classes.

Class<?>[]

Class.getClasses()

Returns an array containing Class objects representing all the public classes and interfaces that are members of the class represented by this Class object.

Class<?>

Class.getComponentType()

Returns the Class representing the component type of an array.

Class<?>[]

Class.getDeclaredClasses()

Returns an array of Class objects reflecting all the classes and interfaces declared as members of the class represented by this Class object.

Class<?>

Class.getDeclaringClass()

If the class or interface represented by this Class object is a member of another class, returns the Class object representing the class in which it was declared.

final Class<E>

Enum.getDeclaringClass()

Returns the Class object corresponding to this enum constant's enum type.

Class<?>

StackWalker.StackFrame.getDeclaringClass()

Gets the declaring Class for the method represented by this stack frame.

Class<?>

Class.getEnclosingClass()

Returns the immediately enclosing class of the underlying class.

Class<?>[]

Class.getInterfaces()

Returns the interfaces directly implemented by the class or interface represented by this Class object.

Class<?>

Class.getNestHost()

Returns the nest host of the nest to which the class or interface represented by this Class object belongs.

Class<?>[]

Class.getNestMembers()

Returns an array containing Class objects representing all the classes and interfaces that are members of the nest to which the class or interface represented by this Class object belongs.

Class<?>[]

Class.getPermittedSubclasses()

Returns an array containing Class objects representing the direct subinterfaces or subclasses permitted to extend or implement this class or interface if it is sealed.

Class<? super T>

Class.getSuperclass()

Returns the Class representing the direct superclass of the entity (class, interface, primitive type or void) represented by this Class.

Class<?>

ClassLoader.loadClass(String name)

Loads the class with the specified binary name.

protected Class<?>

ClassLoader.loadClass(String name, boolean resolve)

Loads the class with the specified binary name.

Methods in java.lang that return types with arguments of type Class

Modifier and Type

Method

Description

TypeVariable<Class<T>>[]

Class.getTypeParameters()

Returns an array of TypeVariable objects that represent the type variables declared by the generic declaration represented by this GenericDeclaration object, in declaration order.

Methods in java.lang with parameters of type Class

Modifier and Type

Method

Description

Module

Module.addUses(Class<?> service)

If the caller's module is this module then update this module to add a service dependence on the given service type.

 Class<? extends U>

Class.asSubclass(Class clazz)

Casts this Class object to represent a subclass of the class represented by the specified class object.

boolean

Module.canUse(Class<?> service)

Indicates if this module has a service dependence on the given service type.

protected abstract T

ClassValue.computeValue(Class<?> type)

Computes the given class's derived value for this ClassValue.

T

ClassValue.get(Class<?> type)

Returns the value for the given class.

<A extends Annotation> A

Class.getAnnotation(Class<A> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

Module.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<A extends Annotation> A

Package.getAnnotation(Class<A> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<A extends Annotation> A[]

Class.getAnnotationsByType(Class<A> annotationClass)

Returns annotations that are associated with this element.

<A extends Annotation> A[]

Package.getAnnotationsByType(Class<A> annotationClass)

Returns annotations that are associated with this element.

Constructor<T>

Class.getConstructor(Class<?>... parameterTypes)

Returns a Constructor object that reflects the specified public constructor of the class represented by this Class object.

<A extends Annotation> A

Class.getDeclaredAnnotation(Class<A> annotationClass)

Returns this element's annotation for the specified type if such an annotation is directly present, else null.

<A extends Annotation> A

Package.getDeclaredAnnotation(Class<A> annotationClass)

Returns this element's annotation for the specified type if such an annotation is directly present, else null.

<A extends Annotation> A[]

Class.getDeclaredAnnotationsByType(Class<A> annotationClass)

Returns this element's annotation(s) for the specified type if such annotations are either directly present or indirectly present.

<A extends Annotation> A[]

Package.getDeclaredAnnotationsByType(Class<A> annotationClass)

Constructor<T>

Class.getDeclaredConstructor(Class<?>... parameterTypes)

Returns a Constructor object that reflects the specified constructor of the class represented by this Class object.

Method

Class.getDeclaredMethod(String name, Class<?>... parameterTypes)

Returns a Method object that reflects the specified declared method of the class or interface represented by this Class object.

Method

Class.getMethod(String name, Class<?>... parameterTypes)

Returns a Method object that reflects the specified public member method of the class or interface represented by this Class object.

boolean

Class.isAnnotationPresent(Class<? extends Annotation> annotationClass)

Returns true if an annotation for the specified type is present on this element, else false.

boolean

Package.isAnnotationPresent(Class<? extends Annotation> annotationClass)

Returns true if an annotation for the specified type is present on this element, else false.

boolean

Class.isAssignableFrom(Class<?> cls)

Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter.

boolean

Class.isNestmateOf(Class<?> c)

Determines if the given Class is a nestmate of the class or interface represented by this Class object.

void

ClassValue.remove(Class<?> type)

Removes the associated value for the given class.

protected final void

ClassLoader.resolveClass(Class<?> c)

Links the specified class.

protected final void

ClassLoader.setSigners(Class<?> c, Object[] signers)

Sets the signers of a class.

static <T extends Enum<T>> T

Enum.valueOf(Class<T> enumClass, String name)

Returns the enum constant of the specified enum class with the specified name.

Constructors in java.lang with parameters of type Class

Modifier

Constructor

Description

EnumConstantNotPresentException(Class<? extends Enum> enumType, String constantName)

Constructs an EnumConstantNotPresentException for the specified constant.
Uses of Class in java.lang.annotation

Methods in java.lang.annotation that return Class

Modifier and Type

Method

Description

Class<? extends Annotation>

Annotation.annotationType()

Returns the annotation interface of this annotation.

Class<? extends Annotation>

IncompleteAnnotationException.annotationType()

Returns the Class object for the annotation interface with the missing element.

Constructors in java.lang.annotation with parameters of type Class

Modifier

Constructor

Description

IncompleteAnnotationException(Class<? extends Annotation> annotationType, String elementName)

Constructs an IncompleteAnnotationException to indicate that the named element was missing from the specified annotation interface.
Uses of Class in java.lang.constant

Methods in java.lang.constant that return Class

Modifier and Type

Method

Description

Class<?>

ClassDesc.resolveConstantDesc(MethodHandles.Lookup lookup)
Uses of Class in java.lang.foreign

Methods in java.lang.foreign that return Class

Modifier and Type

Method

Description

Class<?>

ValueLayout.carrier()

Returns the carrier associated with this value layout.
Uses of Class in java.lang.instrument

Methods in java.lang.instrument that return Class

Modifier and Type

Method

Description

Class[]

Instrumentation.getAllLoadedClasses()

Returns an array of all classes currently loaded by the JVM.

Class<?>

ClassDefinition.getDefinitionClass()

Returns the class.

Class[]

Instrumentation.getInitiatedClasses(ClassLoader loader)

Returns an array of all classes which loader can find by name via ClassLoader::loadClass, Class::forName and bytecode linkage.

Methods in java.lang.instrument with parameters of type Class

Modifier and Type

Method

Description

boolean

Instrumentation.isModifiableClass(Class<?> theClass)

Tests whether a class is modifiable by retransformation or redefinition.

void

Instrumentation.retransformClasses(Class<?>... classes)

Retransform the supplied set of classes.

default byte[]

ClassFileTransformer.transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer)

Transforms the given class file and returns a new replacement class file.

default byte[]

ClassFileTransformer.transform(Module module, ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer)

Transforms the given class file and returns a new replacement class file.

Constructors in java.lang.instrument with parameters of type Class

Modifier

Constructor

Description

ClassDefinition(Class<?> theClass, byte[] theClassFile)

Creates a new ClassDefinition binding using the supplied class and class file bytes.
Uses of Class in java.lang.invoke

Methods in java.lang.invoke that return Class

Modifier and Type

Method

Description

<T> Class<T>

MethodHandles.Lookup.accessClass(Class<T> targetClass)

Determines if a class can be accessed from the lookup context defined by this Lookup object.

Class<?>

MethodHandles.Lookup.defineClass(byte[] bytes)

Creates and links a class or interface from bytes with the same class loader and in the same runtime package and protection domain as this lookup's lookup class as if calling ClassLoader::defineClass.

<T> Class<T>

MethodHandles.Lookup.ensureInitialized(Class<T> targetClass)

Ensures that targetClass has been initialized.

Class<?>

MethodHandles.Lookup.findClass(String targetName)

Looks up a class by name from the lookup context defined by this Lookup object, as if resolved by an ldc instruction.

Class<?>

MethodHandleInfo.getDeclaringClass()

Returns the class in which the cracked method handle's underlying member was defined.

Class<?>

MethodType.lastParameterType()

Returns the last parameter type of this method type.

Class<?>

MethodHandles.Lookup.lookupClass()

Tells which class is performing the lookup.

Class<?>[]

MethodType.parameterArray()

Presents the parameter types as an array (a convenience method).

Class<?>

MethodType.parameterType(int num)

Returns the parameter type at the specified index, within this method type.

Class<?>

MethodHandles.Lookup.previousLookupClass()

Reports a lookup class in another module that this lookup object was previously teleported from, or null.

static Class<?>

ConstantBootstraps.primitiveClass(MethodHandles.Lookup lookup, String name, Class<?> type)

Returns a Class mirror for the primitive type whose type descriptor is specified by name.

Class<?>

MethodType.returnType()

Returns the return type of this method type.

Class<?>

VarHandle.varType()

Returns the variable type of variables referenced by this VarHandle.

static Class<?>

MethodHandleProxies.wrapperInstanceType(Object x)

Recovers the unique single-method interface type for which this wrapper instance was created.

Methods in java.lang.invoke that return types with arguments of type Class

Modifier and Type

Method

Description

List<Class<?>>

VarHandle.coordinateTypes()

Returns the coordinate types for this VarHandle.

List<Class<?>>

MethodType.parameterList()

Presents the parameter types as a list (a convenience method).

Methods in java.lang.invoke with parameters of type Class

Modifier and Type

Method

Description

<T> Class<T>

MethodHandles.Lookup.accessClass(Class<T> targetClass)

Determines if a class can be accessed from the lookup context defined by this Lookup object.

MethodType

MethodType.appendParameterTypes(Class<?>... ptypesToInsert)

Finds or creates a method type with additional parameter types.

static MethodHandle

MethodHandles.arrayConstructor(Class<?> arrayClass)

Produces a method handle constructing arrays of a desired type, as if by the anewarray bytecode.

static MethodHandle

MethodHandles.arrayElementGetter(Class<?> arrayClass)

Produces a method handle giving read access to elements of an array, as if by the aaload bytecode.

static MethodHandle

MethodHandles.arrayElementSetter(Class<?> arrayClass)

Produces a method handle giving write access to elements of an array, as if by the astore bytecode.

static VarHandle

MethodHandles.arrayElementVarHandle(Class<?> arrayClass)

Produces a VarHandle giving access to elements of an array of type arrayClass.

static MethodHandle

MethodHandles.arrayLength(Class<?> arrayClass)

Produces a method handle returning the length of an array, as if by the arraylength bytecode.

static VarHandle

ConstantBootstraps.arrayVarHandle(MethodHandles.Lookup lookup, String name, Class<VarHandle> type, Class<?> arrayClass)

Finds a VarHandle for an array type.

MethodHandle

MethodHandle.asCollector(int collectArgPos, Class<?> arrayType, int arrayLength)

Makes an array-collecting method handle, which accepts a given number of positional arguments starting at a given position, and collects them into an array argument.

MethodHandle

MethodHandle.asCollector(Class<?> arrayType, int arrayLength)

Makes an array-collecting method handle, which accepts a given number of trailing positional arguments and collects them into an array argument.

static <T> T

MethodHandleProxies.asInterfaceInstance(Class<T> intfc, MethodHandle target)

Produces an instance of the given single-method interface which redirects its calls to the given method handle.

MethodHandle

MethodHandle.asSpreader(int spreadArgPos, Class<?> arrayType, int arrayLength)

Makes an array-spreading method handle, which accepts an array argument at a given position and spreads its elements as positional arguments in place of the array.

MethodHandle

MethodHandle.asSpreader(Class<?> arrayType, int arrayLength)

Makes an array-spreading method handle, which accepts a trailing array argument and spreads its elements as positional arguments.

MethodHandle

MethodHandle.asVarargsCollector(Class<?> arrayType)

Makes a variable arity adapter which is able to accept any number of trailing positional arguments and collect them into an array argument.

static VarHandle

MethodHandles.byteArrayViewVarHandle(Class<?> viewArrayClass, ByteOrder byteOrder)

Produces a VarHandle giving access to elements of a byte[] array viewed as if it were a different primitive array type, such as int[] or long[].

static VarHandle

MethodHandles.byteBufferViewVarHandle(Class<?> viewArrayClass, ByteOrder byteOrder)

Produces a VarHandle giving access to elements of a ByteBuffer viewed as if it were an array of elements of a different primitive component type to that of byte, such as int[] or long[].

static MethodHandle

MethodHandles.catchException(MethodHandle target, Class<? extends Throwable> exType, MethodHandle handler)

Makes a method handle which adapts a target method handle, by running it inside an exception handler.

MethodType

MethodType.changeParameterType(int num, Class<?> nptype)

Finds or creates a method type with a single different parameter type.

MethodType

MethodType.changeReturnType(Class<?> nrtype)

Finds or creates a method type with a different return type.

static <T> T

MethodHandles.classData(MethodHandles.Lookup caller, String name, Class<T> type)

Returns the class data associated with the lookup class of the given caller lookup object, or null.

static <T> T

MethodHandles.classDataAt(MethodHandles.Lookup caller, String name, Class<T> type, int index)

Returns the element at the specified index in the class data, if the class data associated with the lookup class of the given caller lookup object is a List.

static MethodHandle

MethodHandles.constant(Class<?> type, Object value)

Produces a method handle of the requested return type which returns the given constant value every time it is invoked.

static MethodHandle

MethodHandles.dropArguments(MethodHandle target, int pos, Class<?>... valueTypes)

Produces a method handle which will discard some dummy arguments before calling some other specified target method handle.

static VarHandle

MethodHandles.dropCoordinates(VarHandle target, int pos, Class<?>... valueTypes)

Preview.

Returns a var handle which will discard some dummy coordinates before delegating to the target var handle.

<T> Class<T>

MethodHandles.Lookup.ensureInitialized(Class<T> targetClass)

Ensures that targetClass has been initialized.

static <E extends Enum<E>> E

ConstantBootstraps.enumConstant(MethodHandles.Lookup lookup, String name, Class<E> type)

Returns an enum constant of the type specified by type with the name specified by name.

static Object

ConstantBootstraps.explicitCast(MethodHandles.Lookup lookup, String name, Class<?> dstType, Object value)

Applies a conversion from a source type to a destination type.

static VarHandle

ConstantBootstraps.fieldVarHandle(MethodHandles.Lookup lookup, String name, Class<VarHandle> type, Class<?> declaringClass, Class<?> fieldType)

Finds a VarHandle for an instance field.

MethodHandle

MethodHandles.Lookup.findConstructor(Class<?> refc, MethodType type)

Produces a method handle which creates an object and initializes it, using the constructor of the specified type.

MethodHandle

MethodHandles.Lookup.findGetter(Class<?> refc, String name, Class<?> type)

Produces a method handle giving read access to a non-static field.

MethodHandle

MethodHandles.Lookup.findSetter(Class<?> refc, String name, Class<?> type)

Produces a method handle giving write access to a non-static field.

MethodHandle

MethodHandles.Lookup.findSpecial(Class<?> refc, String name, MethodType type, Class<?> specialCaller)

Produces an early-bound method handle for a virtual method.

MethodHandle

MethodHandles.Lookup.findStatic(Class<?> refc, String name, MethodType type)

Produces a method handle for a static method.

MethodHandle

MethodHandles.Lookup.findStaticGetter(Class<?> refc, String name, Class<?> type)

Produces a method handle giving read access to a static field.

MethodHandle

MethodHandles.Lookup.findStaticSetter(Class<?> refc, String name, Class<?> type)

Produces a method handle giving write access to a static field.

VarHandle

MethodHandles.Lookup.findStaticVarHandle(Class<?> decl, String name, Class<?> type)

Produces a VarHandle giving access to a static field name of type type declared in a class of type decl.

VarHandle

MethodHandles.Lookup.findVarHandle(Class<?> recv, String name, Class<?> type)

Produces a VarHandle giving access to a non-static field name of type type declared in a class of type recv.

MethodHandle

MethodHandles.Lookup.findVirtual(Class<?> refc, String name, MethodType type)

Produces a method handle for a virtual method.

static Object

ConstantBootstraps.getStaticFinal(MethodHandles.Lookup lookup, String name, Class<?> type)

Returns the value of a static final field declared in the class which is the same as the field's type (or, for primitive-valued fields, declared in the wrapper class.)

static Object

ConstantBootstraps.getStaticFinal(MethodHandles.Lookup lookup, String name, Class<?> type, Class<?> declaringClass)

Returns the value of a static final field.

static MethodHandle

MethodHandles.identity(Class<?> type)

Produces a method handle which returns its sole argument when invoked.

MethodHandles.Lookup

MethodHandles.Lookup.in(Class<?> requestedLookupClass)

Creates a lookup on the specified new lookup class.

MethodType

MethodType.insertParameterTypes(int num, Class<?>... ptypesToInsert)

Finds or creates a method type with additional parameter types.

static Object

ConstantBootstraps.invoke(MethodHandles.Lookup lookup, String name, Class<?> type, MethodHandle handle, Object... args)

Returns the result of invoking a method handle with the provided arguments.

static MethodType

MethodType.methodType(Class<?> rtype)

Finds or creates a method type with the given components.

static MethodType

MethodType.methodType(Class<?> rtype, Class<?> ptype0)

Finds or creates a method type with the given components.

static MethodType

MethodType.methodType(Class<?> rtype, Class<?>[] ptypes)

Finds or creates an instance of the given method type.

static MethodType

MethodType.methodType(Class<?> rtype, Class<?> ptype0, Class<?>... ptypes)

Finds or creates a method type with the given components.

static MethodType

MethodType.methodType(Class<?> rtype, MethodType ptypes)

Finds or creates a method type with the given components.

static MethodType

MethodType.methodType(Class<?> rtype, List<Class<?>> ptypes)

Finds or creates a method type with the given components.

static Object

ConstantBootstraps.nullConstant(MethodHandles.Lookup lookup, String name, Class<?> type)

Returns a null object reference for the reference type specified by type.

static Class<?>

ConstantBootstraps.primitiveClass(MethodHandles.Lookup lookup, String name, Class<?> type)

Returns a Class mirror for the primitive type whose type descriptor is specified by name.

static MethodHandles.Lookup

MethodHandles.privateLookupIn(Class<?> targetClass, MethodHandles.Lookup caller)

Returns a lookup object on a target class to emulate all supported bytecode behaviors, including private access.

<T extends Member> T

MethodHandleInfo.reflectAs(Class<T> expected, MethodHandles.Lookup lookup)

Reflects the underlying member as a method, constructor, or field object.

static <T extends Member> T

MethodHandles.reflectAs(Class<T> expected, MethodHandle target)

Performs an unchecked "crack" of a direct method handle.

static VarHandle

ConstantBootstraps.staticFieldVarHandle(MethodHandles.Lookup lookup, String name, Class<VarHandle> type, Class<?> declaringClass, Class<?> fieldType)

Finds a VarHandle for a static field.

static MethodHandle

MethodHandles.throwException(Class<?> returnType, Class<? extends Throwable> exType)

Produces a method handle which will throw exceptions of the given exType.

static String

MethodHandleInfo.toString(int kind, Class<?> defc, String name, MethodType type)

Returns a string representation for a MethodHandleInfo, given the four parts of its symbolic reference.

MethodHandle

MethodHandles.Lookup.unreflectSpecial(Method m, Class<?> specialCaller)

Produces a method handle for a reflected method.

static MethodHandle

MethodHandles.zero(Class<?> type)

Produces a constant method handle of the requested return type which returns the default value for that type every time it is invoked.

Method parameters in java.lang.invoke with type arguments of type Class

Modifier and Type

Method

Description

MethodType

MethodType.appendParameterTypes(List<Class<?>> ptypesToInsert)

Finds or creates a method type with additional parameter types.

static MethodHandle

MethodHandles.dropArguments(MethodHandle target, int pos, List<Class<?>> valueTypes)

Produces a method handle which will discard some dummy arguments before calling some other specified target method handle.

static MethodHandle

MethodHandles.dropArgumentsToMatch(MethodHandle target, int skip, List<Class<?>> newTypes, int pos)

Adapts a target method handle to match the given parameter type list.

MethodType

MethodType.insertParameterTypes(int num, List<Class<?>> ptypesToInsert)

Finds or creates a method type with additional parameter types.

static MethodType

MethodType.methodType(Class<?> rtype, List<Class<?>> ptypes)

Finds or creates a method type with the given components.

static VarHandle

MethodHandles.permuteCoordinates(VarHandle target, List<Class<?>> newCoordinates, int... reorder)

Preview.

Provides a var handle which adapts the coordinate values of the target var handle, by re-arranging them so that the new coordinates match the provided ones.

Constructors in java.lang.invoke with parameters of type Class

Modifier

Constructor

Description

SerializedLambda(Class<?> capturingClass, String functionalInterfaceClass, String functionalInterfaceMethodName, String functionalInterfaceMethodSignature, int implMethodKind, String implClass, String implMethodName, String implMethodSignature, String instantiatedMethodType, Object[] capturedArgs)

Create a SerializedLambda from the low-level information present at the lambda factory site.
Uses of Class in java.lang.management

Methods in java.lang.management that return types with arguments of type Class

Modifier and Type

Method

Description

static Set<Class<? extends PlatformManagedObject>>

ManagementFactory.getPlatformManagementInterfaces()

Returns the set of Class objects, subinterface of PlatformManagedObject, representing all management interfaces for monitoring and managing the Java platform.

Methods in java.lang.management with parameters of type Class

Modifier and Type

Method

Description

static <T extends PlatformManagedObject> T

ManagementFactory.getPlatformMXBean(Class<T> mxbeanInterface)

Returns the platform MXBean implementing the given mxbeanInterface which is specified to have one single instance in the Java virtual machine.

static <T extends PlatformManagedObject> T

ManagementFactory.getPlatformMXBean(MBeanServerConnection connection, Class<T> mxbeanInterface)

Returns the platform MXBean proxy for mxbeanInterface which is specified to have one single instance in a Java virtual machine and the proxy will forward the method calls through the given MBeanServerConnection.

static <T extends PlatformManagedObject> List<T>

ManagementFactory.getPlatformMXBeans(Class<T> mxbeanInterface)

Returns the list of platform MXBeans implementing the given mxbeanInterface in the Java virtual machine.

static <T extends PlatformManagedObject> List<T>

ManagementFactory.getPlatformMXBeans(MBeanServerConnection connection, Class<T> mxbeanInterface)

Returns the list of the platform MXBean proxies for forwarding the method calls of the mxbeanInterface through the given MBeanServerConnection.

static <T> T

ManagementFactory.newPlatformMXBeanProxy(MBeanServerConnection connection, String mxbeanName, Class<T> mxbeanInterface)

Returns a proxy for a platform MXBean interface of a given MXBean name that forwards its method calls through the given MBeanServerConnection.
Uses of Class in java.lang.reflect

Methods in java.lang.reflect that return Class

Modifier and Type

Method

Description

Class<T>

Constructor.getDeclaringClass()

Returns the Class object representing the class that declares the constructor represented by this object.

abstract Class<?>

Executable.getDeclaringClass()

Returns the Class object representing the class or interface that declares the executable represented by this object.

Class<?>

Field.getDeclaringClass()

Returns the Class object representing the class or interface that declares the field represented by this Field object.

Class<?>

Member.getDeclaringClass()

Returns the Class object representing the class or interface that declares the member or constructor represented by this Member.

Class<?>

Method.getDeclaringClass()

Returns the Class object representing the class or interface that declares the method represented by this object.

Class<?>

RecordComponent.getDeclaringRecord()

Returns the record class which declares this record component.

Class<?>[]

Constructor.getExceptionTypes()

Returns an array of Class objects that represent the types of exceptions declared to be thrown by the underlying executable represented by this object.

abstract Class<?>[]

Executable.getExceptionTypes()

Returns an array of Class objects that represent the types of exceptions declared to be thrown by the underlying executable represented by this object.

Class<?>[]

Method.getExceptionTypes()

Returns an array of Class objects that represent the types of exceptions declared to be thrown by the underlying executable represented by this object.

Class<?>[]

Constructor.getParameterTypes()

Returns an array of Class objects that represent the formal parameter types, in declaration order, of the executable represented by this object.

abstract Class<?>[]

Executable.getParameterTypes()

Returns an array of Class objects that represent the formal parameter types, in declaration order, of the executable represented by this object.

Class<?>[]

Method.getParameterTypes()

Returns an array of Class objects that represent the formal parameter types, in declaration order, of the executable represented by this object.

static Class<?>

Proxy.getProxyClass(ClassLoader loader, Class<?>... interfaces)

Deprecated.
Proxy classes generated in a named module are encapsulated and not accessible to code outside its module.

Class<?>

Method.getReturnType()

Returns a Class object that represents the formal return type of the method represented by this Method object.

Class<?>

Field.getType()

Returns a Class object that identifies the declared type for the field represented by this Field object.

Class<?>

Parameter.getType()

Returns a Class object that identifies the declared type for the parameter represented by this Parameter object.

Class<?>

RecordComponent.getType()

Returns a Class that identifies the declared type for this record component.

Methods in java.lang.reflect with parameters of type Class

Modifier and Type

Method

Description

<T extends Annotation> T

AccessibleObject.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

AnnotatedElement.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

AnnotatedType.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

Constructor.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

Executable.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

Field.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

Method.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

Parameter.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T

RecordComponent.getAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is present, else null.

<T extends Annotation> T[]

AccessibleObject.getAnnotationsByType(Class<T> annotationClass)

Returns annotations that are associated with this element.

default <T extends Annotation> T[]

AnnotatedElement.getAnnotationsByType(Class<T> annotationClass)

Returns annotations that are associated with this element.

<T extends Annotation> T[]

Executable.getAnnotationsByType(Class<T> annotationClass)

Returns annotations that are associated with this element.

<T extends Annotation> T[]

Field.getAnnotationsByType(Class<T> annotationClass)

Returns annotations that are associated with this element.

<T extends Annotation> T[]

Parameter.getAnnotationsByType(Class<T> annotationClass)

Returns annotations that are associated with this element.

<T extends Annotation> T

AccessibleObject.getDeclaredAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is directly present, else null.

default <T extends Annotation> T

AnnotatedElement.getDeclaredAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is directly present, else null.

<T extends Annotation> T

Parameter.getDeclaredAnnotation(Class<T> annotationClass)

Returns this element's annotation for the specified type if such an annotation is directly present, else null.

<T extends Annotation> T[]

AccessibleObject.getDeclaredAnnotationsByType(Class<T> annotationClass)

Returns this element's annotation(s) for the specified type if such annotations are either directly present or indirectly present.

default <T extends Annotation> T[]

AnnotatedElement.getDeclaredAnnotationsByType(Class<T> annotationClass)

Returns this element's annotation(s) for the specified type if such annotations are either directly present or indirectly present.

<T extends Annotation> T[]

Parameter.getDeclaredAnnotationsByType(Class<T> annotationClass)

Returns this element's annotation(s) for the specified type if such annotations are either directly present or indirectly present.

static Class<?>

Proxy.getProxyClass(ClassLoader loader, Class<?>... interfaces)

Deprecated.
Proxy classes generated in a named module are encapsulated and not accessible to code outside its module.

boolean

AccessibleObject.isAnnotationPresent(Class<? extends Annotation> annotationClass)

Returns true if an annotation for the specified type is present on this element, else false.

default boolean

AnnotatedElement.isAnnotationPresent(Class<? extends Annotation> annotationClass)

Returns true if an annotation for the specified type is present on this element, else false.

static boolean

Proxy.isProxyClass(Class<?> cl)

Returns true if the given class is a proxy class.

static Object

Array.newInstance(Class<?> componentType, int length)

Creates a new array with the specified component type and length.

static Object

Array.newInstance(Class<?> componentType, int... dimensions)

Creates a new array with the specified component type and dimensions.

static Object

Proxy.newProxyInstance(ClassLoader loader, Class<?>[] interfaces, InvocationHandler h)

Returns a proxy instance for the specified interfaces that dispatches method invocations to the specified invocation handler.
Uses of Class in java.lang.runtime

Methods in java.lang.runtime with parameters of type Class

Modifier and Type

Method

Description

static Object

ObjectMethods.bootstrap(MethodHandles.Lookup lookup, String methodName, TypeDescriptor type, Class<?> recordClass, String names, MethodHandle... getters)

Bootstrap method to generate the Object.equals(Object), Object.hashCode(), and Object.toString() methods, based on a description of the component names and accessor methods, for either invokedynamic call sites or dynamic constant pool entries.
Uses of Class in java.net

Methods in java.net that return Class

Modifier and Type

Method

Description

protected Class<?>

URLClassLoader.findClass(String name)

Finds and loads the class with the specified name from the URL search path.

Class<T>

SocketOption.type()

Returns the type of the socket option value.

Methods in java.net with parameters of type Class

Modifier and Type

Method

Description

Object

ContentHandler.getContent(URLConnection urlc, Class[] classes)

Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object that matches one of the types specified.

final Object

URL.getContent(Class<?>[] classes)

Gets the contents of this URL.

Object

URLConnection.getContent(Class<?>[] classes)

Retrieves the contents of this URL connection.
Uses of Class in java.nio.file

Methods in java.nio.file that return Class

Modifier and Type

Method

Description

Class<T>

WatchEvent.Kind.type()

Returns the type of the context value.

Methods in java.nio.file with parameters of type Class

Modifier and Type

Method

Description

static <V extends FileAttributeView> V

Files.getFileAttributeView(Path path, Class<V> type, LinkOption... options)

Returns a file attribute view of a given type.

<V extends FileAttributeView> V

SecureDirectoryStream.getFileAttributeView(Class<V> type)

Returns a new file attribute view to access the file attributes of this directory.

<V extends FileAttributeView> V

SecureDirectoryStream.getFileAttributeView(T path, Class<V> type, LinkOption... options)

Returns a new file attribute view to access the file attributes of a file in this directory.

abstract <V extends FileStoreAttributeView> V

FileStore.getFileStoreAttributeView(Class<V> type)

Returns a FileStoreAttributeView of the given type.

static <A extends BasicFileAttributes> A

Files.readAttributes(Path path, Class<A> type, LinkOption... options)

Reads a file's attributes as a bulk operation.

abstract boolean

FileStore.supportsFileAttributeView(Class<? extends FileAttributeView> type)

Tells whether or not this file store supports the file attributes identified by the given file attribute view.
Uses of Class in java.nio.file.spi

Methods in java.nio.file.spi with parameters of type Class

Modifier and Type

Method

Description

abstract <V extends FileAttributeView> V

FileSystemProvider.getFileAttributeView(Path path, Class<V> type, LinkOption... options)

Returns a file attribute view of a given type.

abstract <A extends BasicFileAttributes> A

FileSystemProvider.readAttributes(Path path, Class<A> type, LinkOption... options)

Reads a file's attributes as a bulk operation.

<A extends BasicFileAttributes> A

FileSystemProvider.readAttributesIfExists(Path path, Class<A> type, LinkOption... options)

Reads a file's attributes as a bulk operation if it exists.
Uses of Class in java.rmi.server

Methods in java.rmi.server that return Class

Modifier and Type

Method

Description

Class<?>

LoaderHandler.loadClass(String name)

Deprecated.
no replacement

Class<?>

LoaderHandler.loadClass(URL codebase, String name)

Deprecated.
no replacement

static Class<?>

RMIClassLoader.loadClass(String name)

Deprecated.
replaced by loadClass(String,String) method

static Class<?>

RMIClassLoader.loadClass(String codebase, String name)

Loads a class from a codebase URL path.

static Class<?>

RMIClassLoader.loadClass(String codebase, String name, ClassLoader defaultLoader)

Loads a class from a codebase URL path, optionally using the supplied loader.

static Class<?>

RMIClassLoader.loadClass(URL codebase, String name)

Loads a class from a codebase URL.

abstract Class<?>

RMIClassLoaderSpi.loadClass(String codebase, String name, ClassLoader defaultLoader)

Provides the implementation for RMIClassLoader.loadClass(URL,String), RMIClassLoader.loadClass(String,String), and RMIClassLoader.loadClass(String,String,ClassLoader).

static Class<?>

RMIClassLoader.loadProxyClass(String codebase, String[] interfaces, ClassLoader defaultLoader)

Loads a dynamic proxy class (see Proxy) that implements a set of interfaces with the given names from a codebase URL path.

abstract Class<?>

RMIClassLoaderSpi.loadProxyClass(String codebase, String[] interfaces, ClassLoader defaultLoader)

Provides the implementation for RMIClassLoader.loadProxyClass(String,String[],ClassLoader).

Methods in java.rmi.server with parameters of type Class

Modifier and Type

Method

Description

static String

RMIClassLoader.getClassAnnotation(Class<?> cl)

Returns the annotation string (representing a location for the class definition) that RMI will use to annotate the class descriptor when marshalling objects of the given class.

abstract String

RMIClassLoaderSpi.getClassAnnotation(Class<?> cl)

Provides the implementation for RMIClassLoader.getClassAnnotation(Class).
Uses of Class in java.security

Methods in java.security that return Class

Modifier and Type

Method

Description

protected final Class<?>

SecureClassLoader.defineClass(String name, byte[] b, int off, int len, CodeSource cs)

Converts an array of bytes into an instance of class Class, with an optional CodeSource.

protected final Class<?>

SecureClassLoader.defineClass(String name, ByteBuffer b, CodeSource cs)

Converts a ByteBuffer into an instance of class Class, with an optional CodeSource.

Methods in java.security with parameters of type Class

Modifier and Type

Method

Description

boolean

KeyStoreSpi.engineEntryInstanceOf(String alias, Class<? extends KeyStore.Entry> entryClass)

Determines if the keystore Entry for the specified alias is an instance or subclass of the specified entryClass.

protected abstract <T extends KeySpec> T

KeyFactorySpi.engineGetKeySpec(Key key, Class<T> keySpec)

Returns a specification (key material) of the given key object.

protected abstract <T extends AlgorithmParameterSpec> T

AlgorithmParametersSpi.engineGetParameterSpec(Class<T> paramSpec)

Returns a (transparent) specification of this parameters object.

final boolean

KeyStore.entryInstanceOf(String alias, Class<? extends KeyStore.Entry> entryClass)

Determines if the keystore Entry for the specified alias is an instance or subclass of the specified entryClass.

final <T extends KeySpec> T

KeyFactory.getKeySpec(Key key, Class<T> keySpec)

Returns a specification (key material) of the given key object.

final <T extends AlgorithmParameterSpec> T

AlgorithmParameters.getParameterSpec(Class<T> paramSpec)

Returns a (transparent) specification of this parameter object.
Uses of Class in java.sql

Methods in java.sql that return types with arguments of type Class

Modifier and Type

Method

Description

Map<String,Class<?>>

Connection.getTypeMap()

Retrieves the Map object associated with this Connection object.

Methods in java.sql with parameters of type Class

Modifier and Type

Method

Description

<T> T

CallableStatement.getObject(int parameterIndex, Class<T> type)

Returns an object representing the value of OUT parameter parameterIndex and will convert from the SQL type of the parameter to the requested Java data type, if the conversion is supported.

<T> T

CallableStatement.getObject(String parameterName, Class<T> type)

Returns an object representing the value of OUT parameter parameterName and will convert from the SQL type of the parameter to the requested Java data type, if the conversion is supported.

<T> T

ResultSet.getObject(int columnIndex, Class<T> type)

Retrieves the value of the designated column in the current row of this ResultSet object and will convert from the SQL type of the column to the requested Java data type, if the conversion is supported.

<T> T

ResultSet.getObject(String columnLabel, Class<T> type)

Retrieves the value of the designated column in the current row of this ResultSet object and will convert from the SQL type of the column to the requested Java data type, if the conversion is supported.

<T extends Source> T

SQLXML.getSource(Class<T> sourceClass)

Returns a Source for reading the XML value designated by this SQLXML instance.

boolean

Wrapper.isWrapperFor(Class<?> iface)

Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.

default <T> T

SQLInput.readObject(Class<T> type)

Reads the next attribute in the stream and returns it as an Object in the Java programming language.

<T extends Result> T

SQLXML.setResult(Class<T> resultClass)

Returns a Result for setting the XML value designated by this SQLXML instance.

<T> T

Wrapper.unwrap(Class<T> iface)

Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.

Method parameters in java.sql with type arguments of type Class

Modifier and Type

Method

Description

Object

Array.getArray(long index, int count, Map<String,Class<?>> map)

Retrieves a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.

Object

Array.getArray(Map<String,Class<?>> map)

Retrieves the contents of the SQL ARRAY value designated by this Array object.

Object[]

Struct.getAttributes(Map<String,Class<?>> map)

Produces the ordered values of the attributes of the SQL structured type that this Struct object represents.

Object

CallableStatement.getObject(int parameterIndex, Map<String,Class<?>> map)

Returns an object representing the value of OUT parameter parameterIndex and uses map for the custom mapping of the parameter value.

Object

CallableStatement.getObject(String parameterName, Map<String,Class<?>> map)

Returns an object representing the value of OUT parameter parameterName and uses map for the custom mapping of the parameter value.

Object

Ref.getObject(Map<String,Class<?>> map)

Retrieves the referenced object and maps it to a Java type using the given type map.

Object

ResultSet.getObject(int columnIndex, Map<String,Class<?>> map)

Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

Object

ResultSet.getObject(String columnLabel, Map<String,Class<?>> map)

Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

ResultSet

Array.getResultSet(long index, int count, Map<String,Class<?>> map)

Retrieves a result set holding the elements of the subarray that starts at index index and contains up to count successive elements.

ResultSet

Array.getResultSet(Map<String,Class<?>> map)

Retrieves a result set that contains the elements of the SQL ARRAY value designated by this Array object.

void

Connection.setTypeMap(Map<String,Class<?>> map)

Installs the given TypeMap object as the type map for this Connection object.
Uses of Class in java.util

Methods in java.util that return Class

Modifier and Type

Method

Description

Class<?>

IllegalFormatConversionException.getArgumentClass()

Returns the class of the mismatched argument.

Class<? extends S>

ServiceLoader.Provider.type()

Returns the provider type.

Methods in java.util with parameters of type Class

Modifier and Type

Method

Description

static <E extends Enum<E>> EnumSet<E>

EnumSet.allOf(Class<E> elementType)

Creates an enum set containing all of the elements in the specified element type.

static <E> Collection<E>

Collections.checkedCollection(Collection<E> c, Class<E> type)

Returns a dynamically typesafe view of the specified collection.

static <E> List<E>

Collections.checkedList(List<E> list, Class<E> type)

Returns a dynamically typesafe view of the specified list.

static <K, V> Map<K,V>

Collections.checkedMap(Map<K,V> m, Class<K> keyType, Class<V> valueType)

Returns a dynamically typesafe view of the specified map.

static <K, V> NavigableMap<K,V>

Collections.checkedNavigableMap(NavigableMap<K,V> m, Class<K> keyType, Class<V> valueType)

Returns a dynamically typesafe view of the specified navigable map.

static <E> NavigableSet<E>

Collections.checkedNavigableSet(NavigableSet<E> s, Class<E> type)

Returns a dynamically typesafe view of the specified navigable set.

static <E> Queue<E>

Collections.checkedQueue(Queue<E> queue, Class<E> type)

Returns a dynamically typesafe view of the specified queue.

static <E> Set<E>

Collections.checkedSet(Set<E> s, Class<E> type)

Returns a dynamically typesafe view of the specified set.

static <K, V> SortedMap<K,V>

Collections.checkedSortedMap(SortedMap<K,V> m, Class<K> keyType, Class<V> valueType)

Returns a dynamically typesafe view of the specified sorted map.

static <E> SortedSet<E>

Collections.checkedSortedSet(SortedSet<E> s, Class<E> type)

Returns a dynamically typesafe view of the specified sorted set.

static <T, U> T[]

Arrays.copyOf(U[] original, int newLength, Class<? extends T[]> newType)

Copies the specified array, truncating or padding with nulls (if necessary) so the copy has the specified length.

static <T, U> T[]

Arrays.copyOfRange(U[] original, int from, int to, Class<? extends T[]> newType)

Copies the specified range of the specified array into a new array.

static <S> ServiceLoader<S>

ServiceLoader.load(Class<S> service)

Creates a new service loader for the given service type, using the current thread's context class loader.

static <S> ServiceLoader<S>

ServiceLoader.load(Class<S> service, ClassLoader loader)

Creates a new service loader for the given service.

static <S> ServiceLoader<S>

ServiceLoader.load(ModuleLayer layer, Class<S> service)

Creates a new service loader for the given service type to load service providers from modules in the given module layer and its ancestors.

static <S> ServiceLoader<S>

ServiceLoader.loadInstalled(Class<S> service)

Creates a new service loader for the given service type, using the platform class loader.

static <E extends Enum<E>> EnumSet<E>

EnumSet.noneOf(Class<E> elementType)

Creates an empty enum set with the specified element type.

Constructors in java.util with parameters of type Class

Modifier

Constructor

Description

EnumMap(Class<K> keyType)

Creates an empty enum map with the specified key type.

IllegalFormatConversionException(char c, Class<?> arg)

Constructs an instance of this class with the mismatched conversion and the corresponding argument class.
Uses of Class in java.util.concurrent.atomic

Methods in java.util.concurrent.atomic with parameters of type Class

Modifier and Type

Method

Description

static AtomicIntegerFieldUpdater

AtomicIntegerFieldUpdater.newUpdater(Class tclass, String fieldName)

Creates and returns an updater for objects with the given field.

static AtomicLongFieldUpdater

AtomicLongFieldUpdater.newUpdater(Class tclass, String fieldName)

Creates and returns an updater for objects with the given field.

static <U, W> AtomicReferenceFieldUpdater<U,W>

AtomicReferenceFieldUpdater.newUpdater(Class tclass, Class<W> vclass, String fieldName)

Creates and returns an updater for objects with the given field.
Uses of Class in java.util.prefs

Methods in java.util.prefs with parameters of type Class

Modifier and Type

Method

Description

static Preferences

Preferences.systemNodeForPackage(Class<?> c)

Returns the preference node from the system preference tree that is associated (by convention) with the specified class's package.

static Preferences

Preferences.userNodeForPackage(Class<?> c)

Returns the preference node from the calling user's preference tree that is associated (by convention) with the specified class's package.
Uses of Class in javax.annotation.processing

Methods in javax.annotation.processing with parameters of type Class

Modifier and Type

Method

Description

Set<? extends Element>

RoundEnvironment.getElementsAnnotatedWith(Class<? extends Annotation> a)

Returns the elements annotated with the given annotation interface.

Method parameters in javax.annotation.processing with type arguments of type Class

Modifier and Type

Method

Description

default Set<? extends Element>

RoundEnvironment.getElementsAnnotatedWithAny(Set<Class<? extends Annotation>> annotations)

Returns the elements annotated with one or more of the given annotation interfaces.
Uses of Class in javax.crypto

Methods in javax.crypto with parameters of type Class

Modifier and Type

Method

Description

protected abstract KeySpec

SecretKeyFactorySpi.engineGetKeySpec(SecretKey key, Class<?> keySpec)

Returns a specification (key material) of the given key object in the requested format.

final KeySpec

SecretKeyFactory.getKeySpec(SecretKey key, Class<?> keySpec)

Returns a specification (key material) of the given key object in the requested format.
Uses of Class in javax.imageio.metadata

Methods in javax.imageio.metadata that return Class

Modifier and Type

Method

Description

Class<?>

IIOMetadataFormat.getObjectClass(String elementName)

Returns the Class type of the Object reference stored within the element.

Class<?>

IIOMetadataFormatImpl.getObjectClass(String elementName)

Methods in javax.imageio.metadata with parameters of type Class

Modifier and Type

Method

Description

protected void

IIOMetadataFormatImpl.addObjectValue(String elementName, Class<?> classType, int arrayMinLength, int arrayMaxLength)

Allows an Object reference of a given class type to be stored in nodes implementing the named element.

protected <T> void

IIOMetadataFormatImpl.addObjectValue(String elementName, Class<T> classType, boolean required, T defaultValue)

Allows an Object reference of a given class type to be stored in nodes implementing the named element.

protected <T> void

IIOMetadataFormatImpl.addObjectValue(String elementName, Class<T> classType, boolean required, T defaultValue, List<? extends T> enumeratedValues)

Allows an Object reference of a given class type to be stored in nodes implementing the named element.

protected <T extends Object & Comparable<? super T>> void

IIOMetadataFormatImpl.addObjectValue(String elementName, Class<T> classType, T defaultValue, Comparable<? super T> minValue, Comparable<? super T> maxValue, boolean minInclusive, boolean maxInclusive)

Allows an Object reference of a given class type to be stored in nodes implementing the named element.
Uses of Class in javax.imageio.spi

Fields in javax.imageio.spi declared as Class

Modifier and Type

Field

Description

protected Class<?>

ImageInputStreamSpi.inputClass

A Class object indicating the legal object type for use by the createInputStreamInstance method.

protected Class<?>[]

ImageReaderSpi.inputTypes

An array of Class objects to be returned from getInputTypes, initially null.

protected Class<?>

ImageOutputStreamSpi.outputClass

A Class object indicating the legal object type for use by the createInputStreamInstance method.

protected Class<?>[]

ImageWriterSpi.outputTypes

An array of Class objects to be returned from getOutputTypes, initially null.

static final Class<?>[]

ImageReaderSpi.STANDARD_INPUT_TYPE

Deprecated.
Instead of using this field, directly create the equivalent array { ImageInputStream.class }.

static final Class<?>[]

ImageWriterSpi.STANDARD_OUTPUT_TYPE

Deprecated.
Instead of using this field, directly create the equivalent array { ImageOutputStream.class }.

Methods in javax.imageio.spi that return Class

Modifier and Type

Method

Description

Class<?>

ImageInputStreamSpi.getInputClass()

Returns a Class object representing the class or interface type that must be implemented by an input source in order to be "wrapped" in an ImageInputStream via the createInputStreamInstance method.

Class<?>[]

ImageReaderSpi.getInputTypes()

Returns an array of Class objects indicating what types of objects may be used as arguments to the reader's setInput method.

Class<?>

ImageOutputStreamSpi.getOutputClass()

Returns a Class object representing the class or interface type that must be implemented by an output destination in order to be "wrapped" in an ImageOutputStream via the createOutputStreamInstance method.

Class<?>[]

ImageWriterSpi.getOutputTypes()

Returns an array of Class objects indicating what types of objects may be used as arguments to the writer's setOutput method.

Methods in javax.imageio.spi that return types with arguments of type Class

Modifier and Type

Method

Description

Iterator<Class<?>>

ServiceRegistry.getCategories()

Returns an Iterator of Class objects indicating the current set of categories.

Methods in javax.imageio.spi with parameters of type Class

Modifier and Type

Method

Description

void

ServiceRegistry.deregisterAll(Class<?> category)

Deregisters all service provider object currently registered under the given category.

<T> boolean

ServiceRegistry.deregisterServiceProvider(T provider, Class<T> category)

Removes a service provider object from the given category.

<T> T

ServiceRegistry.getServiceProviderByClass(Class<T> providerClass)

Returns the currently registered service provider object that is of the given class type.

<T> Iterator<T>

ServiceRegistry.getServiceProviders(Class<T> category, boolean useOrdering)

Returns an Iterator containing all registered service providers in the given category.

<T> Iterator<T>

ServiceRegistry.getServiceProviders(Class<T> category, ServiceRegistry.Filter filter, boolean useOrdering)

Returns an Iterator containing service provider objects within a given category that satisfy a criterion imposed by the supplied ServiceRegistry.Filter object's filter method.

static <T> Iterator<T>

ServiceRegistry.lookupProviders(Class<T> providerClass)

Locates and incrementally instantiates the available providers of a given service using the context class loader.

static <T> Iterator<T>

ServiceRegistry.lookupProviders(Class<T> providerClass, ClassLoader loader)

Searches for implementations of a particular service class using the given class loader.

void

IIOServiceProvider.onDeregistration(ServiceRegistry registry, Class<?> category)

A callback that will be whenever the Spi class has been deregistered from a ServiceRegistry.

void

RegisterableService.onDeregistration(ServiceRegistry registry, Class<?> category)

Called when an object implementing this interface is removed from the given category of the given registry.

void

IIOServiceProvider.onRegistration(ServiceRegistry registry, Class<?> category)

A callback that will be called exactly once after the Spi class has been instantiated and registered in a ServiceRegistry.

void

RegisterableService.onRegistration(ServiceRegistry registry, Class<?> category)

Called when an object implementing this interface is added to the given category of the given registry.

<T> boolean

ServiceRegistry.registerServiceProvider(T provider, Class<T> category)

Adds a service provider object to the registry.

<T> boolean

ServiceRegistry.setOrdering(Class<T> category, T firstProvider, T secondProvider)

Sets a pairwise ordering between two service provider objects within a given category.

<T> boolean

ServiceRegistry.unsetOrdering(Class<T> category, T firstProvider, T secondProvider)

Sets a pairwise ordering between two service provider objects within a given category.

Constructors in javax.imageio.spi with parameters of type Class

Modifier

Constructor

Description

ImageInputStreamSpi(String vendorName, String version, Class<?> inputClass)

Constructs an ImageInputStreamSpi with a given set of values.

ImageOutputStreamSpi(String vendorName, String version, Class<?> outputClass)

Constructs an ImageOutputStreamSpi with a given set of values.

ImageReaderSpi(String vendorName, String version, String[] names, String[] suffixes, String[] MIMETypes, String readerClassName, Class<?>[] inputTypes, String[] writerSpiNames, boolean supportsStandardStreamMetadataFormat, String nativeStreamMetadataFormatName, String nativeStreamMetadataFormatClassName, String[] extraStreamMetadataFormatNames, String[] extraStreamMetadataFormatClassNames, boolean supportsStandardImageMetadataFormat, String nativeImageMetadataFormatName, String nativeImageMetadataFormatClassName, String[] extraImageMetadataFormatNames, String[] extraImageMetadataFormatClassNames)

Constructs an ImageReaderSpi with a given set of values.

ImageWriterSpi(String vendorName, String version, String[] names, String[] suffixes, String[] MIMETypes, String writerClassName, Class<?>[] outputTypes, String[] readerSpiNames, boolean supportsStandardStreamMetadataFormat, String nativeStreamMetadataFormatName, String nativeStreamMetadataFormatClassName, String[] extraStreamMetadataFormatNames, String[] extraStreamMetadataFormatClassNames, boolean supportsStandardImageMetadataFormat, String nativeImageMetadataFormatName, String nativeImageMetadataFormatClassName, String[] extraImageMetadataFormatNames, String[] extraImageMetadataFormatClassNames)

Constructs an ImageWriterSpi with a given set of values.

Constructor parameters in javax.imageio.spi with type arguments of type Class

Modifier

Constructor

Description

ServiceRegistry(Iterator<Class<?>> categories)

Constructs a ServiceRegistry instance with a set of categories taken from the categories argument.
Uses of Class in javax.lang.model

Methods in javax.lang.model with parameters of type Class

Modifier and Type

Method

Description

<A extends Annotation> A

AnnotatedConstruct.getAnnotation(Class<A> annotationType)

Returns this construct's annotation of the specified type if such an annotation is present, else null.

<A extends Annotation> A[]

AnnotatedConstruct.getAnnotationsByType(Class<A> annotationType)

Returns annotations that are associated with this construct.
Uses of Class in javax.lang.model.element

Methods in javax.lang.model.element with parameters of type Class

Modifier and Type

Method

Description

<A extends Annotation> A

Element.getAnnotation(Class<A> annotationType)

Returns this construct's annotation of the specified type if such an annotation is present, else null.

<A extends Annotation> A[]

Element.getAnnotationsByType(Class<A> annotationType)

Returns annotations that are associated with this construct.
Uses of Class in javax.lang.model.type

Methods in javax.lang.model.type with parameters of type Class

Modifier and Type

Method

Description

<A extends Annotation> A

TypeMirror.getAnnotation(Class<A> annotationType)

Returns this construct's annotation of the specified type if such an annotation is present, else null.

<A extends Annotation> A[]

TypeMirror.getAnnotationsByType(Class<A> annotationType)

Returns annotations that are associated with this construct.
Uses of Class in javax.management

Methods in javax.management that return Class

Modifier and Type

Method

Description

Class<?>

StandardMBean.getImplementationClass()

Get the class of the implementation of this Standard MBean (or MXBean).

final Class<?>

StandardMBean.getMBeanInterface()

Get the Management Interface of this Standard MBean (or MXBean).

static Class<?>

DefaultLoaderRepository.loadClass(String className)

Deprecated.

Go through the list of class loaders and try to load the requested class.

static Class<?>

DefaultLoaderRepository.loadClassWithout(ClassLoader loader, String className)

Deprecated.

Go through the list of class loaders but exclude the given class loader, then try to load the requested class.

Methods in javax.management with parameters of type Class

Modifier and Type

Method

Description

static boolean

JMX.isMXBeanInterface(Class<?> interfaceClass)

Test whether an interface is an MXBean interface.

static <T> T

JMX.newMBeanProxy(MBeanServerConnection connection, ObjectName objectName, Class<T> interfaceClass)

Make a proxy for a Standard MBean in a local or remote MBean Server.

static <T> T

JMX.newMBeanProxy(MBeanServerConnection connection, ObjectName objectName, Class<T> interfaceClass, boolean notificationEmitter)

Make a proxy for a Standard MBean in a local or remote MBean Server that may also support the methods of NotificationEmitter.

static <T> T

JMX.newMXBeanProxy(MBeanServerConnection connection, ObjectName objectName, Class<T> interfaceClass)

Make a proxy for an MXBean in a local or remote MBean Server.

static <T> T

JMX.newMXBeanProxy(MBeanServerConnection connection, ObjectName objectName, Class<T> interfaceClass, boolean notificationEmitter)

Make a proxy for an MXBean in a local or remote MBean Server that may also support the methods of NotificationEmitter.

static <T> T

MBeanServerInvocationHandler.newProxyInstance(MBeanServerConnection connection, ObjectName objectName, Class<T> interfaceClass, boolean notificationBroadcaster)

Return a proxy that implements the given interface by forwarding its methods through the given MBean server to the named MBean.

Constructors in javax.management with parameters of type Class

Modifier

Constructor

Description

protected

StandardEmitterMBean(Class<?> mbeanInterface, boolean isMXBean, NotificationEmitter emitter)

Make an MBean whose management interface is specified by mbeanInterface, and where notifications are handled by the given NotificationEmitter.

protected

StandardEmitterMBean(Class<?> mbeanInterface, NotificationEmitter emitter)

Make an MBean whose management interface is specified by mbeanInterface, and where notifications are handled by the given NotificationEmitter.

StandardEmitterMBean(T implementation, Class<T> mbeanInterface, boolean isMXBean, NotificationEmitter emitter)

Make an MBean whose management interface is specified by mbeanInterface, with the given implementation and where notifications are handled by the given NotificationEmitter.

StandardEmitterMBean(T implementation, Class<T> mbeanInterface, NotificationEmitter emitter)

Make an MBean whose management interface is specified by mbeanInterface, with the given implementation and where notifications are handled by the given NotificationEmitter.

protected

StandardMBean(Class<?> mbeanInterface)

Make a DynamicMBean out of this, using the specified mbeanInterface class.

protected

StandardMBean(Class<?> mbeanInterface, boolean isMXBean)

Make a DynamicMBean out of this, using the specified mbeanInterface class, and choosing whether the resulting MBean is an MXBean.

StandardMBean(T implementation, Class<T> mbeanInterface)

Make a DynamicMBean out of the object implementation, using the specified mbeanInterface class.

StandardMBean(T implementation, Class<T> mbeanInterface, boolean isMXBean)

Make a DynamicMBean out of the object implementation, using the specified mbeanInterface class, and choosing whether the resultant MBean is an MXBean.
Uses of Class in javax.management.loading

Methods in javax.management.loading that return Class

Modifier and Type

Method

Description

protected Class<?>

MLet.findClass(String name)

Deprecated, for removal: This API element is subject to removal in a future version.

This is the main method for class loaders that is being redefined.

Class<?>

ClassLoaderRepository.loadClass(String className)

Load the given class name through the list of class loaders.

static Class<?>

DefaultLoaderRepository.loadClass(String className)

Deprecated.

Go through the list of class loaders and try to load the requested class.

Class<?>

MLet.loadClass(String name, ClassLoaderRepository clr)

Deprecated, for removal: This API element is subject to removal in a future version.

Load a class, using the given ClassLoaderRepository if the class is not found in this MLet's URLs.

Class<?>

ClassLoaderRepository.loadClassBefore(ClassLoader stop, String className)

Load the given class name through the list of class loaders, stopping at the given one.

Class<?>

ClassLoaderRepository.loadClassWithout(ClassLoader exclude, String className)

Load the given class name through the list of class loaders, excluding the given one.

static Class<?>

DefaultLoaderRepository.loadClassWithout(ClassLoader loader, String className)

Deprecated.

Go through the list of class loaders but exclude the given class loader, then try to load the requested class.
Uses of Class in javax.management.openmbean

Methods in javax.management.openmbean with parameters of type Class

Modifier and Type

Method

Description

static <T> ArrayType<T>

ArrayType.getPrimitiveArrayType(Class<T> arrayClass)

Create an ArrayType instance in a type-safe manner.
Uses of Class in javax.naming.spi

Methods in javax.naming.spi with parameters of type Class

Modifier and Type

Method

Description

ResolveResult

Resolver.resolveToClass(String name, Class<? extends Context> contextType)

Partially resolves a name.

ResolveResult

Resolver.resolveToClass(Name name, Class<? extends Context> contextType)

Partially resolves a name.
Uses of Class in javax.print

Methods in javax.print that return Class

Modifier and Type

Method

Description

Class<?>[]

PrintService.getSupportedAttributeCategories()

Determines the printing attribute categories a client can specify when setting up a job for this print service.

Class<?>[]

AttributeException.getUnsupportedAttributes()

Returns the array of printing attribute classes for which the Print Service instance does not support the attribute at all, or null if there are no such attributes.

Methods in javax.print with parameters of type Class

Modifier and Type

Method

Description

<T extends PrintServiceAttribute> T

PrintService.getAttribute(Class<T> category)

Gets the value of the single specified service attribute.

Object

PrintService.getDefaultAttributeValue(Class<? extends Attribute> category)

Determines this print service's default printing attribute value in the given category.

Object

PrintService.getSupportedAttributeValues(Class<? extends Attribute> category, DocFlavor flavor, AttributeSet attributes)

Determines the printing attribute values a client can specify in the given category when setting up a job for this print service.

boolean

PrintService.isAttributeCategorySupported(Class<? extends Attribute> category)

Determines whether a client can specify the given printing attribute category when setting up a job for this print service.
Uses of Class in javax.print.attribute

Methods in javax.print.attribute that return Class

Modifier and Type

Method

Description

Class<? extends Attribute>

Attribute.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value when it is added to an attribute set.

static Class<?>

AttributeSetUtilities.verifyAttributeCategory(Object object, Class<?> interfaceName)

Verify that the given object is a Class that implements the given interface, which is assumed to be interface Attribute or a subinterface thereof.

Methods in javax.print.attribute with parameters of type Class

Modifier and Type

Method

Description

boolean

AttributeSet.containsKey(Class<?> category)

Returns true if this attribute set contains an attribute for the specified category.

boolean

HashAttributeSet.containsKey(Class<?> category)

Returns true if this attribute set contains an attribute for the specified category.

Attribute

AttributeSet.get(Class<?> category)

Returns the attribute value which this attribute set contains in the given attribute category.

Attribute

HashAttributeSet.get(Class<?> category)

Returns the attribute value which this attribute set contains in the given attribute category.

boolean

AttributeSet.remove(Class<?> category)

Removes any attribute for this category from this attribute set if present.

boolean

HashAttributeSet.remove(Class<?> category)

Removes any attribute for this category from this attribute set if present.

static Class<?>

AttributeSetUtilities.verifyAttributeCategory(Object object, Class<?> interfaceName)

Verify that the given object is a Class that implements the given interface, which is assumed to be interface Attribute or a subinterface thereof.

static Attribute

AttributeSetUtilities.verifyAttributeValue(Object object, Class<?> interfaceName)

Verify that the given object is an instance of the given interface, which is assumed to be interface Attribute or a subinterface thereof.

static void

AttributeSetUtilities.verifyCategoryForValue(Class<?> category, Attribute attribute)

Verify that the given attribute category object is equal to the category of the given attribute value object.

Constructors in javax.print.attribute with parameters of type Class

Modifier

Constructor

Description

protected

HashAttributeSet(Class<?> interfaceName)

Construct a new, empty attribute set, where the members of the attribute set are restricted to the given interface.

protected

HashAttributeSet(Attribute[] attributes, Class<?> interfaceName)

Construct a new attribute set, where the members of the attribute set are restricted to the given interface.

protected

HashAttributeSet(Attribute attribute, Class<?> interfaceName)

Construct a new attribute set, initially populated with the given attribute, where the members of the attribute set are restricted to the given interface.

protected

HashAttributeSet(AttributeSet attributes, Class<?> interfaceName)

Construct a new attribute set, initially populated with the values from the given set where the members of the attribute set are restricted to the given interface.
Uses of Class in javax.print.attribute.standard

Methods in javax.print.attribute.standard that return Class

Modifier and Type

Method

Description

final Class<? extends Attribute>

Chromaticity.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

ColorSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Compression.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Copies.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

CopiesSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

DateTimeAtCompleted.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

DateTimeAtCreation.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

DateTimeAtProcessing.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Destination.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

DialogOwner.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

DialogTypeSelection.getCategory()

Gets the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

DocumentName.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Fidelity.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Finishings.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobHoldUntil.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobImpressions.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobImpressionsCompleted.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobImpressionsSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobKOctets.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobKOctetsProcessed.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobKOctetsSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobMediaSheets.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobMediaSheetsCompleted.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobMediaSheetsSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobMessageFromOperator.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobName.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobOriginatingUserName.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobPriority.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobPrioritySupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobSheets.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobState.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobStateReason.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

JobStateReasons.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Media.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

MediaPrintableArea.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

MediaSize.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

MultipleDocumentHandling.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

NumberOfDocuments.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

NumberOfInterveningJobs.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

NumberUp.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

NumberUpSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

OrientationRequested.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

OutputDeviceAssigned.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PageRanges.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PagesPerMinute.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PagesPerMinuteColor.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PDLOverrideSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PresentationDirection.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterInfo.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterIsAcceptingJobs.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterLocation.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterMakeAndModel.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterMessageFromOperator.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterMoreInfo.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterMoreInfoManufacturer.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterName.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterResolution.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterState.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterStateReason.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterStateReasons.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrinterURI.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

PrintQuality.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

QueuedJobCount.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

ReferenceUriSchemesSupported.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

RequestingUserName.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Severity.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

SheetCollate.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.

final Class<? extends Attribute>

Sides.getCategory()

Get the printing attribute class which is to be used as the "category" for this printing attribute value.
Uses of Class in javax.script

Methods in javax.script with parameters of type Class

Modifier and Type

Method

Description

<T> T

Invocable.getInterface(Class<T> clasz)

Returns an implementation of an interface using functions compiled in the interpreter.

<T> T

Invocable.getInterface(Object thiz, Class<T> clasz)

Returns an implementation of an interface using member functions of a scripting object compiled in the interpreter.
Uses of Class in javax.security.auth

Methods in javax.security.auth with parameters of type Class

Modifier and Type

Method

Description

<T extends Principal> Set<T>

Subject.getPrincipals(Class<T> c)

Return a Set of Principals associated with this Subject that are instances or subclasses of the specified Class.

<T> Set<T>

Subject.getPrivateCredentials(Class<T> c)

Return a Set of private credentials associated with this Subject that are instances or subclasses of the specified Class.

<T> Set<T>

Subject.getPublicCredentials(Class<T> c)

Return a Set of public credentials associated with this Subject that are instances or subclasses of the specified Class.
Uses of Class in javax.sound.midi

Methods in javax.sound.midi that return Class

Modifier and Type

Method

Description

Class<?>

SoundbankResource.getDataClass()

Obtains the class used by this sample to represent its data.

Constructors in javax.sound.midi with parameters of type Class

Modifier

Constructor

Description

protected

Instrument(Soundbank soundbank, Patch patch, String name, Class<?> dataClass)

Constructs a new MIDI instrument from the specified Patch.

protected

SoundbankResource(Soundbank soundBank, String name, Class<?> dataClass)

Constructs a new SoundbankResource from the given sound bank and wavetable index.
Uses of Class in javax.sound.sampled

Methods in javax.sound.sampled that return Class

Modifier and Type

Method

Description

Class<?>

Line.Info.getLineClass()

Obtains the class of the line that this Line.Info object describes.

Constructors in javax.sound.sampled with parameters of type Class

Modifier

Constructor

Description

Info(Class<?> lineClass, AudioFormat format)

Constructs a data line's info object from the specified information, which includes a single audio format.

Info(Class<?> lineClass, AudioFormat[] formats, int minBufferSize, int maxBufferSize)

Constructs a data line's info object from the specified information, which includes a set of supported audio formats and a range for the buffer size.

Info(Class<?> lineClass, AudioFormat format, int bufferSize)

Constructs a data line's info object from the specified information, which includes a single audio format and a desired buffer size.

Info(Class<?> lineClass)

Constructs an info object that describes a line of the specified class.

Info(Class<?> lineClass, String name, boolean isSource)

Constructs a port's info object from the information given.
Uses of Class in javax.sql

Methods in javax.sql that return types with arguments of type Class

Modifier and Type

Method

Description

Map<String,Class<?>>

RowSet.getTypeMap()

Retrieves the Map object associated with this RowSet object, which specifies the custom mapping of SQL user-defined types, if any.

Method parameters in javax.sql with type arguments of type Class

Modifier and Type

Method

Description

void

RowSet.setTypeMap(Map<String,Class<?>> map)

Installs the given java.util.Map object as the default type map for this RowSet object.
Uses of Class in javax.sql.rowset

Methods in javax.sql.rowset that return types with arguments of type Class

Modifier and Type

Method

Description

Map<String,Class<?>>

BaseRowSet.getTypeMap()

Retrieves the type map associated with the Connection object for this RowSet object.

Methods in javax.sql.rowset with parameters of type Class

Modifier and Type

Method

Description

boolean

RowSetMetaDataImpl.isWrapperFor(Class<?> interfaces)

Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.

<T> T

RowSetMetaDataImpl.unwrap(Class<T> iface)

Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.

Method parameters in javax.sql.rowset with type arguments of type Class

Modifier and Type

Method

Description

void

BaseRowSet.setTypeMap(Map<String,Class<?>> map)

Installs the given java.util.Map object as the type map associated with the Connection object for this RowSet object.
Uses of Class in javax.sql.rowset.serial

Method parameters in javax.sql.rowset.serial with type arguments of type Class

Modifier and Type

Method

Description

Object

SerialArray.getArray(long index, int count, Map<String,Class<?>> map)

Returns a new array that is a copy of a slice of this SerialArray object, starting with the element at the given index and containing the given number of consecutive elements.

Object

SerialArray.getArray(Map<String,Class<?>> map)

Returns a new array that is a copy of this SerialArray object, using the given type map for the custom mapping of each element when the elements are SQL UDTs.

Object[]

SerialStruct.getAttributes(Map<String,Class<?>> map)

Retrieves the attributes for the SQL structured type that this SerialStruct represents as an array of Object values, using the given type map for custom mapping if appropriate.

Object

SerialRef.getObject(Map<String,Class<?>> map)

Returns an Object representing the SQL structured type to which this SerialRef object refers.

ResultSet

SerialArray.getResultSet(long index, int count, Map<String,Class<?>> map)

Retrieves a result set holding the elements of the subarray that starts at Retrieves a ResultSet object that contains a subarray of the elements in this SerialArray object, starting at index index and containing up to count successive elements.

ResultSet

SerialArray.getResultSet(Map<String,Class<?>> map)

Retrieves a ResultSet object that contains all of the elements of the SQL ARRAY value represented by this SerialArray object.

Constructor parameters in javax.sql.rowset.serial with type arguments of type Class

Modifier

Constructor

Description

SerialArray(Array array, Map<String,Class<?>> map)

Constructs a new SerialArray object from the given Array object, using the given type map for the custom mapping of each element when the elements are SQL UDTs.

SerialStruct(SQLData in, Map<String,Class<?>> map)

Constructs a SerialStruct object from the given SQLData object, using the given type map to custom map it to a class in the Java programming language.

SerialStruct(Struct in, Map<String,Class<?>> map)

Constructs a SerialStruct object from the given Struct object, using the given java.util.Map object for custom mapping the SQL structured type or any of its attributes that are SQL structured types.

SQLInputImpl(Object[] attributes, Map<String,Class<?>> map)

Creates an SQLInputImpl object initialized with the given array of attributes and the given type map.
Uses of Class in javax.swing

Methods in javax.swing that return Class

Modifier and Type

Method

Description

Class<?>

JTable.getColumnClass(int column)

Returns the type of the column appearing in the view at column position column.

Class<? extends ComponentUI>

UIDefaults.getUIClass(String uiClassID)

Returns the L&F class that renders this component.

Class<? extends ComponentUI>

UIDefaults.getUIClass(String uiClassID, ClassLoader uiClassLoader)

The value of get(uidClassID) must be the String name of a class that implements the corresponding ComponentUI class.

Methods in javax.swing with parameters of type Class

Modifier and Type

Method

Description

static Container

SwingUtilities.getAncestorOfClass(Class<?> c, Component comp)

Convenience method for searching above comp in the component hierarchy and returns the first object of class c it finds.

TableCellEditor

JTable.getDefaultEditor(Class<?> columnClass)

Returns the editor to be used when no editor has been set in a TableColumn.

TableCellRenderer

JTable.getDefaultRenderer(Class<?> columnClass)

Returns the cell renderer to be used when no renderer has been set in a TableColumn.

<T extends EventListener> T[]

AbstractListModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.

<T extends EventListener> T[]

AbstractSpinnerModel.getListeners(Class<T> listenerType)

Return an array of all the listeners of the given type that were added to this model.

<T extends EventListener> T[]

DefaultBoundedRangeModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.

<T extends EventListener> T[]

DefaultButtonModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.

<T extends EventListener> T[]

DefaultListSelectionModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.

<T extends EventListener> T[]

DefaultSingleSelectionModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.

<T extends EventListener> T[]

JComponent.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this JComponent.

<T extends EventListener> T[]

Timer.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this Timer.

static Object

LookAndFeel.makeIcon(Class<?> baseClass, String gifFile)

Creates and returns a UIDefault.LazyValue that loads an image.

void

JTable.setDefaultEditor(Class<?> columnClass, TableCellEditor editor)

Sets a default cell editor to be used if no editor has been set in a TableColumn.

void

JTable.setDefaultRenderer(Class<?> columnClass, TableCellRenderer renderer)

Sets a default cell renderer to be used if no renderer has been set in a TableColumn.
Uses of Class in javax.swing.event

Methods in javax.swing.event with parameters of type Class

Modifier and Type

Method

Description

<T extends EventListener> void

EventListenerList.add(Class<T> t, T l)

Adds the listener as a listener of the specified type.

int

EventListenerList.getListenerCount(Class<?> t)

Returns the total number of listeners of the supplied type for this listener list.

<T extends EventListener> T[]

EventListenerList.getListeners(Class<T> t)

Return an array of all the listeners of the given type.

<T extends EventListener> void

EventListenerList.remove(Class<T> t, T l)

Removes the listener as a listener of the specified type.
Uses of Class in javax.swing.plaf.synth

Methods in javax.swing.plaf.synth with parameters of type Class

Modifier and Type

Method

Description

void

SynthLookAndFeel.load(InputStream input, Class<?> resourceBase)

Loads the set of SynthStyles that will be used by this SynthLookAndFeel.
Uses of Class in javax.swing.table

Methods in javax.swing.table that return Class

Modifier and Type

Method

Description

Class<?>

AbstractTableModel.getColumnClass(int columnIndex)

Returns Object.class regardless of columnIndex.

Class<?>

TableModel.getColumnClass(int columnIndex)

Returns the most specific superclass for all the cell values in the column.

Methods in javax.swing.table with parameters of type Class

Modifier and Type

Method

Description

<T extends EventListener> T[]

AbstractTableModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this AbstractTableModel.

<T extends EventListener> T[]

DefaultTableColumnModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.
Uses of Class in javax.swing.text

Methods in javax.swing.text that return Class

Modifier and Type

Method

Description

Class<?>

DefaultFormatter.getValueClass()

Returns that class that is used to create new Objects.

Methods in javax.swing.text with parameters of type Class

Modifier and Type

Method

Description

<T extends EventListener> T[]

AbstractDocument.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this document.

<T extends EventListener> T[]

DefaultCaret.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this caret.

<T extends EventListener> T[]

StyleContext.NamedStyle.getListeners(Class<T> listenerType)

Return an array of all the listeners of the given type that were added to this model.

void

DefaultFormatter.setValueClass(Class<?> valueClass)

Sets that class that is used to create new Objects.
Uses of Class in javax.swing.tree

Methods in javax.swing.tree with parameters of type Class

Modifier and Type

Method

Description

<T extends EventListener> T[]

DefaultTreeModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.

<T extends EventListener> T[]

DefaultTreeSelectionModel.getListeners(Class<T> listenerType)

Returns an array of all the objects currently registered as FooListeners upon this model.
Uses of Class in javax.tools

Methods in javax.tools with parameters of type Class

Modifier and Type

Method

Description

<S> ServiceLoader<S>

ForwardingJavaFileManager.getServiceLoader(JavaFileManager.Location location, Class<S> service)

default <S> ServiceLoader<S>

JavaFileManager.getServiceLoader(JavaFileManager.Location location, Class<S> service)

Get a service loader for a specific service class from a given location.

DocumentationTool.DocumentationTask

DocumentationTool.getTask(Writer out, JavaFileManager fileManager, DiagnosticListener<? super JavaFileObject> diagnosticListener, Class<?> docletClass, Iterable<String> options, Iterable<? extends JavaFileObject> compilationUnits)

Creates a future for a documentation task with the given components and arguments.
Uses of Class in javax.xml.xpath

Methods in javax.xml.xpath with parameters of type Class

Modifier and Type

Method

Description

default <T> T

XPath.evaluateExpression(String expression, Object item, Class<T> type)

Evaluate an XPath expression in the specified context and return the result with the type specified through the class type

default <T> T

XPath.evaluateExpression(String expression, InputSource source, Class<T> type)

Evaluate an XPath expression in the context of the specified source and return the result as specified.

default <T> T

XPathExpression.evaluateExpression(Object item, Class<T> type)

Evaluate the compiled XPath expression in the specified context, and return the result with the type specified through the class type.

default <T> T

XPathExpression.evaluateExpression(InputSource source, Class<T> type)

Evaluate the compiled XPath expression in the specified context, and return the result with the type specified through the class type

static QName

XPathEvaluationResult.XPathResultType.getQNameType(Class<?> clsType)

Returns the QName type as specified in XPathConstants that corresponds to the specified class type.
Uses of Class in jdk.dynalink.beans

Methods in jdk.dynalink.beans that return Class

Modifier and Type

Method

Description

Class<?>

StaticClass.getRepresentedClass()

Returns the represented Java class.

Methods in jdk.dynalink.beans with parameters of type Class

Modifier and Type

Method

Description

static StaticClass

StaticClass.forClass(Class<?> clazz)

Retrieves the StaticClass instance for the specified class.

static Object

BeansLinker.getConstructorMethod(Class<?> clazz, String signature)

Return the dynamic method of constructor of the given class and the given signature.

static Set<String>

BeansLinker.getInstanceMethodNames(Class<?> clazz)

Returns a set of names of all instance methods of a class.

TypeBasedGuardingDynamicLinker

BeansLinker.getLinkerForClass(Class<?> clazz)

Returns a bean linker for a particular single class.

static Set<String>

BeansLinker.getReadableInstancePropertyNames(Class<?> clazz)

Returns a set of names of all readable instance properties of a class.

static Set<String>

BeansLinker.getReadableStaticPropertyNames(Class<?> clazz)

Returns a set of names of all readable static properties of a class.

static Set<String>

BeansLinker.getStaticMethodNames(Class<?> clazz)

Returns a set of names of all static methods of a class.

static Set<String>

BeansLinker.getWritableInstancePropertyNames(Class<?> clazz)

Returns a set of names of all writable instance properties of a class.

static Set<String>

BeansLinker.getWritableStaticPropertyNames(Class<?> clazz)

Returns a set of names of all writable static properties of a class.
Uses of Class in jdk.dynalink.linker

Methods in jdk.dynalink.linker that return Class

Modifier and Type

Method

Description

Class<? extends Throwable>

GuardedInvocation.getException()

Returns the exception type that if thrown by the invocation should invalidate the linkage of this guarded invocation.

Methods in jdk.dynalink.linker with parameters of type Class

Modifier and Type

Method

Description

boolean

LinkerServices.canConvert(Class<?> from, Class<?> to)

Returns true if there might exist a conversion between the requested types (either an automatic JVM conversion, or one provided by any available GuardingTypeConverterFactory), or false if there definitely does not exist a conversion between the requested types.

boolean

TypeBasedGuardingDynamicLinker.canLinkType(Class<?> type)

Returns true if the linker can link an invocation where the first argument (receiver) is of the specified type.

ConversionComparator.Comparison

ConversionComparator.compareConversion(Class<?> sourceType, Class<?> targetType1, Class<?> targetType2)

Determines which of the two target types is the preferred conversion target from a source type.

ConversionComparator.Comparison

LinkerServices.compareConversion(Class<?> sourceType, Class<?> targetType1, Class<?> targetType2)

Determines which of the two type conversions from a source type to the two target types is preferred.

GuardedInvocation

GuardingTypeConverterFactory.convertToType(Class<?> sourceType, Class<?> targetType, Supplier<MethodHandles.Lookup> lookupSupplier)

Returns a guarded type conversion that receives a value of the specified source type and returns a value converted to the specified target type.

GuardedInvocation

GuardedInvocation.dropArguments(int pos, Class<?>... valueTypes)

Makes an invocation that drops arguments in both the invocation and the guard (if it exists and has at least pos parameters) with MethodHandles.dropArguments(MethodHandle, int, Class...).

MethodHandle

LinkerServices.getTypeConverter(Class<?> sourceType, Class<?> targetType)

Given a source and target type, returns a method handle that converts between them.

Method parameters in jdk.dynalink.linker with type arguments of type Class

Modifier and Type

Method

Description

GuardedInvocation

GuardedInvocation.dropArguments(int pos, List<Class<?>> valueTypes)

Makes an invocation that drops arguments in both the invocation and the guard (if it exists and has at least pos parameters) with MethodHandles.dropArguments(MethodHandle, int, List).

Constructors in jdk.dynalink.linker with parameters of type Class

Modifier

Constructor

Description

GuardedInvocation(MethodHandle invocation, MethodHandle guard, SwitchPoint[] switchPoints, Class<? extends Throwable> exception)

Creates a new guarded invocation, with a guard method handle, any number of switch points that can be used to invalidate it, and an exception that if thrown when invoked also invalidates it.

GuardedInvocation(MethodHandle invocation, MethodHandle guard, SwitchPoint switchPoint, Class<? extends Throwable> exception)

Creates a new guarded invocation, with a guard method handle, a switch point that can be used to invalidate it, and an exception that if thrown when invoked also invalidates it.
Uses of Class in jdk.dynalink.linker.support

Methods in jdk.dynalink.linker.support that return Class

Modifier and Type

Method

Description

static Class<?>

TypeUtilities.getPrimitiveType(Class<?> wrapperType)

When passed a class representing a wrapper for a primitive type, returns the class representing the corresponding primitive type.

static Class<?>

TypeUtilities.getPrimitiveTypeByName(String name)

Given a name of a primitive type returns the class representing it.

static Class<?>

TypeUtilities.getWrapperType(Class<?> primitiveType)

When passed a class representing a primitive type, returns the class representing the corresponding wrapper type.

Methods in jdk.dynalink.linker.support with parameters of type Class

Modifier and Type

Method

Description

boolean

CompositeTypeBasedGuardingDynamicLinker.canLinkType(Class<?> type)

Returns true if at least one of the composite linkers returns true from TypeBasedGuardingDynamicLinker.canLinkType(Class) for the type.

MethodHandle

Lookup.findGetter(Class<?> refc, String name, Class<?> type)

Performs a MethodHandles.Lookup.findGetter(Class, String, Class), converting any encountered IllegalAccessException into an IllegalAccessError and NoSuchFieldException into a NoSuchFieldError.

static MethodHandle

Lookup.findOwnSpecial(MethodHandles.Lookup lookup, String name, Class<?> rtype, Class<?>... ptypes)

Given a lookup, finds using Lookup.findSpecial(Class, String, MethodType) a method on that lookup's class.

MethodHandle

Lookup.findOwnSpecial(String name, Class<?> rtype, Class<?>... ptypes)

Finds using Lookup.findSpecial(Class, String, MethodType) a method on that lookup's class.

static MethodHandle

Lookup.findOwnStatic(MethodHandles.Lookup lookup, String name, Class<?> rtype, Class<?>... ptypes)

Given a lookup, finds using Lookup.findStatic(Class, String, MethodType) a method on that lookup's class.

MethodHandle

Lookup.findOwnStatic(String name, Class<?> rtype, Class<?>... ptypes)

Finds using Lookup.findStatic(Class, String, MethodType) a method on that lookup's class.

MethodHandle

Lookup.findSpecial(Class<?> declaringClass, String name, MethodType type)

Performs a MethodHandles.Lookup.findSpecial(Class, String, MethodType, Class) on the underlying lookup.

MethodHandle

Lookup.findStatic(Class<?> declaringClass, String name, MethodType type)

Performs a MethodHandles.Lookup.findStatic(Class, String, MethodType) on the underlying lookup.

MethodHandle

Lookup.findVirtual(Class<?> declaringClass, String name, MethodType type)

Performs a MethodHandles.Lookup.findVirtual(Class, String, MethodType) on the underlying lookup.

static MethodHandle

Guards.getClassGuard(Class<?> clazz)

Creates a guard method that tests its only argument for being of an exact particular class.

static MethodHandle

Guards.getInstanceOfGuard(Class<?> clazz)

Creates a guard method that tests its only argument for being an instance of a particular class.

static Class<?>

TypeUtilities.getPrimitiveType(Class<?> wrapperType)

When passed a class representing a wrapper for a primitive type, returns the class representing the corresponding primitive type.

static Class<?>

TypeUtilities.getWrapperType(Class<?> primitiveType)

When passed a class representing a primitive type, returns the class representing the corresponding wrapper type.

static boolean

TypeUtilities.isConvertibleWithoutLoss(Class<?> sourceType, Class<?> targetType)

Determines whether a type can be converted to another without losing any precision.

static MethodHandle

Guards.isInstance(Class<?> clazz, int pos, MethodType type)

Creates a method handle with arguments of a specified type, but with boolean return value.

static MethodHandle

Guards.isInstance(Class<?> clazz, MethodType type)

Creates a method handle with arguments of a specified type, but with boolean return value.

static boolean

TypeUtilities.isMethodInvocationConvertible(Class<?> sourceType, Class<?> targetType)

Determines whether one type can be converted to another type using a method invocation conversion, as per JLS 5.3 "Method Invocation Conversion".

static MethodHandle

Guards.isOfClass(Class<?> clazz, MethodType type)

Creates a guard method handle with arguments of a specified type, but with boolean return value.

static boolean

TypeUtilities.isSubtype(Class<?> subType, Class<?> superType)

Determines whether one type is a subtype of another type, as per JLS 4.10 "Subtyping".

static boolean

TypeUtilities.isWrapperType(Class<?> type)

Returns true if the passed type is a wrapper for a primitive type.
Uses of Class in jdk.incubator.vector

Methods in jdk.incubator.vector that return Class

Modifier and Type

Method

Description

Class<E>

VectorOperators.Conversion.domainType()

The domain of this conversion, a primitive type.

abstract Class<E>

Vector.elementType()

Returns the primitive element type (ETYPE) of this vector.

Class<E>

VectorSpecies.elementType()

Returns the primitive element type of vectors of this species.

Class<? extends VectorMask<E>>

VectorSpecies.maskType()

Returns the vector mask type for this species.

Class<F>

VectorOperators.Conversion.rangeType()

The range of this conversion, a primitive type.

Class<?>

VectorOperators.Operator.rangeType()

Reports the special return type of this operator.

Class<? extends Vector<E>>

VectorSpecies.vectorType()

Returns the vector type of this species.

Methods in jdk.incubator.vector with parameters of type Class

Modifier and Type

Method

Description

abstract <F> Vector<F>

Vector.check(Class<F> elementType)

Checks that this vector has the given element type, and returns this vector unchanged.

abstract <F> VectorMask<F>

VectorMask.check(Class<F> elementType)

Checks that this mask applies to vectors with the given element type, and returns this mask unchanged.

<E, F> VectorOperators.Conversion<E,F>

VectorOperators.Conversion.check(Class<E> from, Class<F> to)

Ensures that this conversion has the desired domain and range types.

<F> VectorSpecies<F>

VectorSpecies.check(Class<F> elementType)

Checks that this species has the given element type, and returns this species unchanged.

boolean

VectorOperators.Operator.compatibleWith(Class<?> elementType)

Reports whether this operator is compatible with the proposed element type.

static int

VectorSpecies.elementSize(Class<?> elementType)

Returns the bit-size of the given vector element type (ETYPE).

static <E> VectorSpecies<E>

VectorSpecies.of(Class<E> elementType, VectorShape shape)

Finds a species for an element type and shape.

static <E, F> VectorOperators.Conversion<E,F>

VectorOperators.Conversion.ofCast(Class<E> from, Class<F> to)

The Java language assignment or casting conversion between two types.

static <E> VectorSpecies<E>

VectorSpecies.ofLargestShape(Class<E> etype)

Finds the largest vector species of the given element type.

static <E> VectorSpecies<E>

VectorSpecies.ofPreferred(Class<E> etype)

Finds the species preferred by the current platform for a given vector element type.

static <E, F> VectorOperators.Conversion<E,F>

VectorOperators.Conversion.ofReinterpret(Class<E> from, Class<F> to)

The bitwise reinterpretation between two types.

<E> VectorSpecies<E>

VectorShape.withLanes(Class<E> elementType)

Finds a vector species with the given element type and the current shape.

<F> VectorSpecies<F>

VectorSpecies.withLanes(Class<F> newType)

Finds a species with the given element type and the same shape as this species.
Uses of Class in jdk.jfr

Methods in jdk.jfr with parameters of type Class

Modifier and Type

Method

Description

static void

FlightRecorder.addPeriodicEvent(Class<? extends Event> eventClass, Runnable hook)

Adds a hook for a periodic event.

EventSettings

Recording.disable(Class<? extends Event> eventClass)

Disables event.

EventSettings

Recording.enable(Class<? extends Event> eventClass)

Enables event.

final <A> A

AnnotationElement.getAnnotation(Class<? extends Annotation> annotationType)

Returns the first annotation for the specified type if an AnnotationElement with the same name exists, else null.

<A extends Annotation> A

EventType.getAnnotation(Class<A> annotationClass)

Returns the first annotation for the specified type if an annotation element with the same name is directly present, otherwise null.

<A extends Annotation> A

SettingDescriptor.getAnnotation(Class<A> annotationType)

Returns the first annotation for the specified type if an annotation element with the same name is available, null otherwise.

<A extends Annotation> A

ValueDescriptor.getAnnotation(Class<A> annotationType)

Returns the first annotation for the specified type if an annotation element with the same name is directly present for this value descriptor, null otherwise.

static EventType

EventType.getEventType(Class<? extends Event> eventClass)

Returns the event type for an event class, or null if it doesn't exist.

static void

FlightRecorder.register(Class<? extends Event> eventClass)

Registers an event class.

static void

FlightRecorder.unregister(Class<? extends Event> eventClass)

Unregisters an event class.

Constructors in jdk.jfr with parameters of type Class

Modifier

Constructor

Description

AnnotationElement(Class<? extends Annotation> annotationType)

Creates an annotation element to use for dynamically defined events.

AnnotationElement(Class<? extends Annotation> annotationType, Object value)

Creates an annotation element to use for dynamically defined events.

AnnotationElement(Class<? extends Annotation> annotationType, Map<String,Object> values)

Creates an annotation element to use for dynamically defined events.

ValueDescriptor(Class<?> type, String name)

Constructs a value descriptor, useful for dynamically creating event types and annotations.

ValueDescriptor(Class<?> type, String name, List<AnnotationElement> annotations)

Constructs a value descriptor, useful for dynamically creating event types and annotations.
Uses of Class in jdk.jfr.consumer

Methods in jdk.jfr.consumer with parameters of type Class

Modifier and Type

Method

Description

EventSettings

RecordingStream.disable(Class<? extends Event> eventClass)

Disables event.

EventSettings

RecordingStream.enable(Class<? extends Event> eventClass)

Enables event.
Uses of Class in jdk.jshell.execution

Methods in jdk.jshell.execution that return Class

Modifier and Type

Method

Description

protected Class<?>

DirectExecutionControl.findClass(String name)

Finds the class with the specified binary name.

Class<?>

LoaderDelegate.findClass(String name)

Finds the class with the specified binary name.
Uses of Class in jdk.net

Methods in jdk.net with parameters of type Class

Modifier and Type

Method

Description

static Set<SocketOption<?>>

Sockets.supportedOptions(Class<?> socketType)

Deprecated, for removal: This API element is subject to removal in a future version.
use Socket.supportedOptions(), ServerSocket.supportedOptions(), or DatagramSocket.supportedOptions() instead.

Uses of Classjava.lang.Class

Uses of Class in com.sun.java.accessibility.util

Uses of Class in com.sun.source.tree

Uses of Class in java.awt

Uses of Class in java.awt.datatransfer

Uses of Class in java.awt.dnd

Uses of Class in java.awt.image.renderable

Uses of Class in java.beans

Uses of Class in java.beans.beancontext

Uses of Class in java.io

Uses of Class in java.lang

Uses of Class in java.lang.annotation

Uses of Class in java.lang.constant

Uses of Class in java.lang.foreign

Uses of Class in java.lang.instrument

Uses of Class in java.lang.invoke

Uses of Class in java.lang.management

Uses of Class in java.lang.reflect

Uses of Class in java.lang.runtime

Uses of Class in java.net

Uses of Class in java.nio.file

Uses of Class in java.nio.file.spi

Uses of Class in java.rmi.server

Uses of Class in java.security

Uses of Class in java.sql

Uses of Class in java.util

Uses of Class in java.util.concurrent.atomic

Uses of Class in java.util.prefs

Uses of Class in javax.annotation.processing

Uses of Class in javax.crypto

Uses of Class in javax.imageio.metadata

Uses of Class in javax.imageio.spi

Uses of Class in javax.lang.model

Uses of Class in javax.lang.model.element

Uses of Class in javax.lang.model.type

Uses of Class in javax.management

Uses of Class in javax.management.loading

Uses of Class in javax.management.openmbean

Uses of Class in javax.naming.spi

Uses of Class in javax.print

Uses of Class in javax.print.attribute

Uses of Class in javax.print.attribute.standard

Uses of Class in javax.script

Uses of Class in javax.security.auth

Uses of Class in javax.sound.midi

Uses of Class in javax.sound.sampled

Uses of Class in javax.sql

Uses of Class in javax.sql.rowset

Uses of Class in javax.sql.rowset.serial

Uses of Class in javax.swing

Uses of Class in javax.swing.event

Uses of Class in javax.swing.plaf.synth

Uses of Class in javax.swing.table

Uses of Class in javax.swing.text

Uses of Class in javax.swing.tree

Uses of Class in javax.tools

Uses of Class in javax.xml.xpath

Uses of Class in jdk.dynalink.beans

Uses of Class in jdk.dynalink.linker

Uses of Class in jdk.dynalink.linker.support

Uses of Class in jdk.incubator.vector

Uses of Class in jdk.jfr

Uses of Class in jdk.jfr.consumer

Uses of Class in jdk.jshell.execution

Uses of Class in jdk.net

Uses of Class
java.lang.Class