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Links

Figure 706. Two different link flavours Slide presentation
Internal document links

Referential integrity by ID / IDREF constraints:

<chapter id="intro">
...
<chapter> ...
See <xref linkend="intro"/> ...
External links

These are “usual” hypertext links:

<para>See
<link href="http://tdg.docbook.org">Docbook</link>
.</para>

exercise No. 1

Internal document links

Q:

Docbook allows for defining internal links using pairs of ID / IDREF attributes. See the “Example” section at the bottom of http://tdg.docbook.org/tdg/5.1/link.html.

Use the XMLMind editor to create at least one internal link in your Docbook sample document like:

...
<para> ... see <link linkend="intro">detailed explanation</link>.</para>
...
<chapter xml:id="intro">
...

What happens if the target ID vanishes i.e. by deleting the corresponding chapter?


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  • Preface
  • 113105 Software development 1
    • Getting started
      • Lecture related resources
      • Using the exercises
      • Related resources
      • Coached exercises
      • Using plain Java™
      • Play!
        • “Hello, World” and friends.
        • Simple calculations
        • A conditional
        • A loop
      • Using Intellij IDEA
    • Language Fundamentals
      • Integer, ASCII and Unicode
      • Primitive types
      • Variables
      • Literals
      • Arithmetic limitations
      • Conversions
      • Operators and expressions
        • Arithmetic and logical operators
        • Assignment operators
        • Unary operators
      • Comments
    • Statements
      • The if conditional statement
        • if-then-else
        • Using else if
      • The switch statement
      • Loops
        • while
        • do ... while
        • for
          • A table of square numbers
          • Loops and calculations
          • Guessing numbers
          • Smallest multiple
          • Pythagorean triples
      • Logic related external exercises
      • Using automated tests.
    • Objects and Classes
      • Working with objects
      • Packages
      • Object methods
        • Encapsulation and access control
        • Getter and setter methods
        • Signatures
        • Method overloading
        • Constructors
        • Scopes
      • Class members and methods
        • A mathematical table.
        • Interest calculations
          • A simple interest calculator
          • Extending our interest calculator
          • Integer value considerations.
        • Programmer's favourite expression
        • Lotteries revisited
        • The greatest common divisor and the common multiple
        • Maven support.
          • Maven command line usage
          • Intellij IDEA on top of Maven
        • Project dependencies and Maven
        • Building a library of mathematical functions.
          • Maximum and absolute value
          • Factorial, the direct way
          • Factorial, the recursive way
          • Binomials, the recursive way
          • Implementing exponentials.
          • Adding sine
          • Strange things happen
          • Completing sine implementation
      • Unit testing
        • Tests and implementation
        • Improving the algorithm
        • Helpful Junit methods
        • Technical details
        • Example: A class representing fractions
      • Value types and reference types
      • Method calls, the details
      • Enumerations (enum).
        • Enumeration by integer representation
        • Enumeration by dedicated class
        • Defining a private constructor
        • enum replacing class
      • Using git
        • Working with git locally.
        • Shared development with centralized remote.
        • Conflicts
    • Core Classes
      • Objects, equals() and hash-values
      • Using class Math
      • String exercises
      • Analyzing file pathnames
    • Arrays
      • Reconsidering System.out.format().
      • java.util.Arrays helpers
      • Extending arrays
        • Storing integer values
      • Understanding static public int main(String[] args)
      • Multi-dimensional arrays
      • Tic-tac-toe
        • Tic-tac-toe using a two-dimensional array
        • Changing the game's internal representation
        • Tic-tac-toe, Computer vs. human
      • Providing statistical data
      • Prime numbers revisited
        • A simple algorithm
        • Improving performance
      • The median of a given sample.
      • Plotting functions
    • Inheritance
      • Overriding equals() and hashCode()
      • Overriding toString()
      • final methods
      • Abstract methods
        • Geometry classes reconsidered
          • Scaling shapes
          • Providing toString() methods
      • protected access
      • final classes
      • The instanceof operator
      • The @Override annotation.
    • Error Handling
      • Checked vs unchecked exceptions
      • Exceptions and Junit
      • Variants
      • Class java.lang.Exception
    • Working with Numbers
      • Boxing and Unboxing
      • Number Parsing
      • Number Formatting
      • Working with Money
      • Generating Random Numbers
    • interface definitions and abstract Classes
      • Interfaces and sorting
      • A nonsense generator
      • An interface based plotter
    • Application deployment I
      • Preparations
      • Exercises
      • Part II, Exercises
    • Reading character streams
      • Preparations
      • Exercises
    • Collections
      • Preparations
      • Collections I, Exercises
        • A Set of Strings
        • A List of Strings
        • Defining a Coordinate class
        • A Set of Coordinate instances
      • Collections I, Exercises
        • Getting a Set of strings from a text file
        • Result string ordering
        • Sorting strings in an unusual way
        • Result string ordering
      • Collections III, Exercises
      • Collections IV, Exercises
      • Maps 1, Preparations
      • Exercises
      • Towns and country names
      • Creating an overview of grades
    • Appendix
      • Exercising past examinations
        • Starting an exam
        • Implementing the project skeleton
        • Finish the exam
      • Examination hints
      • Examination bonus point projects
        • Weather forecast
        • Reverse Polish notation (RPN) calculator
          • Desired functionality
          • Implementation hints
        • Currency converter, Summer 2017
        • An address database, Winter 2016
        • Poor man's UNIX grep, Summer 2016
        • Project Euler's sieve, Winter 2015
      • Past Software Development 1 examinations
        • Sd1 examination winter 2022
          • Implementing tasks
            • Preparation
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
          • Extraterrestrial integer value representation
          • An initialization issue
        • SD1 examination winter 2021
          • Implementing tasks
            • Preparation
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
          • equals() and hashCode()
          • The average of three byte values
        • SD1 examination summer 2021
          • Implementing tasks
            • Preparation
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
          • Spoiled execution
          • Method overriding
        • SD1 examination winter 2020/1
          • Implementing tasks
            • Preparation
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
          • Type conflict
          • Weird subtraction
        • SD1 examination winter 2020/2
          • Implementing tasks
            • Preparation
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
          • Surprising difference
          • Type assignment problem
        • SD1 examination summer 2020
          • Implementing tasks
            • Preparation
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
          • Return type
          • Weird behaviour
        • SD1 examination winter 2019
          • Implementing tasks
            • Preparations
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
            • Solution
          • Unexpected value
            • Solution
          • Assignment problems
            • Solution
          • NullPointerException problem
            • Solution
        • SD1 examination summer 2019
          • Implementing tasks
            • Preparations
            • Description
            • Tasks
            • Hints
            • Project upload
            • Caveats
            • Solution
          • Handling change money
            • Preparation
            • Description
            • Tasks
            • Solution upload
            • Solution
          • Logical expression
            • Solution
          • Device states
            • Solution
          • Missing exception warning
            • Solution
          • Software project bonus points
        • SE1 Klausur Winter 2018
          • Klassenmethoden
            • Vorbereitung
            • Beschreibung
            • Aufgabe
            • Allgemeine Hinweise
            • Hochladen Ihrer Lösung in das Klausursystem
          • Geographische Längen- und Breitenangaben
            • Vorbereitung
            • Beschreibung
            • Aufgaben
            • Hochladen Ihrer Lösung in das Klausursystem
          • Wahr oder falsch?
          • Zeitangaben und hashCode()
          • Vergleichen von StringBuffer Instanzen
        • SE1 Klausur Sommer 2018
          • Klassenmethoden
            • Vorbereitung
            • Beschreibung
            • Aufgabe
            • Allgemeine Hinweise
            • Hochladen Ihrer Lösung in das Klausursystem
            • Lösung
          • Artikel
            • Vorbereitung
            • Beschreibung
            • Aufgaben
            • Hochladen Ihrer Lösung in das Klausursystem
            • Lösung
          • Primitive und Klassentypen
            • Lösung
          • Ein Interface Problem
            • Lösung
          • Farbwerte, byte und int
            • Lösung
      • Working with git
      • Apache Maven
        • The project object model pom.xml
        • Plugins
        • Dependencies
        • Lifecycle, phases and goals
    • List of Exercises
  • Technical Documentation
    • Software independent considerations
      • General remarks
      • Common building blocks
        • Block level elements
      • Docbook
        • Target formats
          • HTML
          • Eclipse Help
          • Printed output
        • Selected elements
          • Paragraph elements
          • List elements
          • Formal elements
          • Graphic elements
          • Admonition elements
          • Sectioning elements
          • Links
          • Top level elements
        • Schematron
        • Customizing
          • Docbook XSL built in parameters
          • Docbook XSL style sheets
          • CSS
        • Assemblies
        • Styling the editor application
      • Modular documents
      • RelaxNG Schema
      • Transforming documents
        • Target format HTML
        • Target format print
    • Software
      • Frontends
      • Backends
        • TeX / LaTeX
        • Docbook
    • Exercises
      • LaTeX
        • LaTeX hello,... world
        • Important elements
        • Macro
        • A complete document
      • Docbook
    • Project proposals
      • Building a reveal.js editor
      • Authoring journey descriptions
      • Gitlab pages integration of Docbook
      • Codingbat reloaded
      • XML based exercise compilations
      • Past projects
    • List of Exercises
  • 113473 Database and application development
    • Database features
    • Selected database products overview
      • Openldap
        • Installation
        • Features
          • CRUD
          • Query
          • Schema
          • Procedures / triggers
          • Transactions / recovery
          • Data access control
          • API support
        • Exercises
      • Mongodb
        • Installation
        • Features
          • CRUD
          • Query
          • Schema
          • Procedures / triggers
          • Transactions / recovery
          • Data access control
          • API support
        • High performance sharding cluster
        • Exercises
    • JDBC: Accessing Relational Data
      • Persistence in Object Oriented languages
      • Introduction to JDBC™
        • Write access, principles
        • Write access, coding!
        • JDBC™ and security
          • Network sniffing
          • SQL injection
          • Sanitizing user input
          • java.sql.PreparedStatement
        • Read Access
          • Getter methods and type conversion
          • Handling NULL values.
        • Handling surrogate keys
        • Transactions
    • JPA
      • Configuring a Maven based Eclipse Java™ project with Hibernate
        • Creating a JPA configuration
      • A round trip working with objects
        • Persisting objects
        • Loading Objects by primary key
        • Loading objects by queries
        • Criteria based queries
      • Mapping single entities and database tables
        • Transient properties
        • Properties and NULL values
        • Defining keys
        • Composed keys
        • Indexes (non-unique)
        • Renaming tables and attributes
        • Changing the default type mapping
        • Object states and transitions
        • XML to JPA using JAXB
          • Supplying a schema
          • Importing XML data to a RDBMS
      • Inheritance
        • Single table per class hierarchy
          • Database object retrieval
          • Null values
        • Joined subclasses
          • Retrieving Objects
        • Table per concrete class
      • Mapping related Components and entities
        • Primary keys revisited
          • Defining object equality by primary key
          • Object equality by natural key
          • Implementing Object.equals(Object) by natural keys
        • Entity and value types
        • Mapping components
          • Sets and lists
      • Caching
      • orphanRemoval vs. CascadeType.DELETE
    • Project ideas
      • Database copy tool
      • Database schema evolution tool
      • Extending UNIX grep to databases
    • List of Exercises
  • Software defined Infrastructure
    • UNIX / LINUX Basics
      • Prerequisites
    • Ubuntu / Debian Package management
      • Prerequisites
    • Getting started
      • Accessing your virtual machine
      • Global configurations
    • DNS
      • Preliminaries
      • Exercises
        • Querying DNS data.
        • Installing Bind
        • Reverse lookups
        • Forwarders
        • Mail exchange record
        • SDI exercises related DNS server
    • LDAP
      • Recommended Preparations
      • Exercises
        • Browse an existing LDAP Server
        • Set up an OpenLdap server
        • Populating your DIT.
        • Testing a bind operation as non - admin user
        • Extending an existing entry
        • Filter based search
        • Accessing LDAP data by a mail client
        • LDAP configuration
        • LDAP based user login
        • Backup and recovery / restore
        • Accessing LDAP by a Java™ application.
    • Apache web server
      • Preliminaries
      • Exercises
        • First Steps
        • Virtual hosts
        • SSL / TLS Support
        • LDAP authentication
        • Mysql™ database administration
        • Providing WEB based user management to your LDAP Server
        • Publish your documentation
    • File cloud
      • Exercises
    • Network file systems served by Samba
      • Prerequisites
      • Samba server installation
    • Mail
      • Recommended Preparations
      • Exercises
        • Install and send to local Users
        • Authentication Setup and Virtual Users
        • TLS
        • Spam and Virus defense
          • blacklisting and greylisting
          • Amavis, Clamav and Spamassasin
          • SPF (optional)
    • Docker
      • Introduction
        • Managing images
        • Running container
        • Volumes
      • Exercises
        • The simple way: Using SQLite
        • The real McCoy: Using Mariadb
    • Icinga
      • Functional checks
      • SNMP based checks
      • ssh based checks
    • List of Exercises
  • Persistence strategies and application development
    • Selected topics related to persistence in application development
      • Recommended reading
      • Getting started
        • Creating a Hibernate JPA project
        • Adding keys and AUTO_INCREMENT
        • Advocating simple key definitions
    • List of Exercises
  • Bibliographic links
  • Glossary
 

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