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Working with Data Types

Service-oriented design abstracts data into a common exchange format. Typically, this format is an XML grammar defined in XML Schema. To save the developer from working directly with XML documents, the JAX-WS specification calls for XML Schema types to be marshaled into Java objects. This marshaling is done in accordance with the Java Architecture for XML Binding (JAXB) specification. JAXB defines bindings for mapping between XML Schema constructs and Java objects and rules for how to marshal the data. It also defines an extensive customization framework for controlling how data is handled.

Table of Contents

10. Basic Data Binding Concepts

Including and Importing Schema Definitions
XML Namespace Mapping
The Object Factory
Adding Classes to the Runtime Marshaller

11. Using XML Elements

12. Using Simple Types

Primitive Types
Simple Types Defined by Restriction
Enumerations
Lists
Unions
Simple Type Substitution

13. Using Complex Types

Basic Complex Type Mapping

Deriving Complex Types from Simple Types

Deriving Complex Types from Complex Types

Occurrence Constraints

Occurrence Constraints on the All Element
Occurrence Constraints on the Choice Element
Occurrence Constraints on Elements
Occurrence Constraints on Sequences

Using Model Groups

14. Using Wild Card Types

Using Any Elements
Using the XML Schema anyType Type
Using Unbound Attributes

15. Element Substitution

Substitution Groups in XML Schema

Substitution Groups in Java

Widget Vendor Example

The checkWidgets Operation
The placeWidgetOrder Operation

16. Customizing How Types are Generated

Basics of Customizing Type Mappings
Specifying the Java Class of an XML Schema Primitive
Generating Java Classes for Simple Types
Customizing Enumeration Mapping
Customizing Fixed Value Attribute Mapping
Specifying the Base Type of an Element or an Attribute

17. Using A JAXBContext Object