XmlSchema (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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SUMMARY: REQUIRED | OPTIONAL

DETAIL: ELEMENT

javax.xml.bind.annotation
Annotation Type XmlSchema

@Retention(value=RUNTIME) @Target(value=PACKAGE) public @interface XmlSchema

Maps a package name to a XML namespace.

Usage

The XmlSchema annotation can be used with the following program elements:

package

This is a package level annotation and follows the recommendations and restrictions contained in JSR 175, section III, "Annotations". Thus the usage is subject to the following constraints and recommendations.

There can only be one package declaration as noted in JSR 175, section III, "Annotations".
JSR 175 recommends package-info.java for package level annotations. JAXB Providers that follow this recommendation will allow the package level annotations to be defined in package-info.java.

Example 1: Customize name of XML namespace to which package is mapped.

    @javax.xml.bind.annotation.XmlSchema (
      namespace = "http://www.example.com/MYPO1"
    )
    
    <!-- XML Schema fragment -->
    <schema
      xmlns=...
      xmlns:po=....
      targetNamespace="http://www.example.com/MYPO1"
    >
    <!-- prefixes generated by default are implementation
            depedenent -->

Example 2: Customize namespace prefix, namespace URI mapping

    // Package level annotation
    @javax.xml.bind.annotation.XmlSchema (
      xmlns = { 
        @javax.xml.bind.annotation.XmlNs(prefix = "po", 
                   namespaceURI="http://www.example.com/myPO1"),

        @javax.xml.bind.annotation.XmlNs(prefix="xs",
                   namespaceURI="http://www.w3.org/2001/XMLSchema")
      )
    )
 
    <!-- XML Schema fragment -->
    <schema
        xmlns:xs="http://www.w3.org/2001/XMLSchema"
        xmlns:po="http://www.example.com/PO1"
        targetNamespace="http://www.example.com/PO1">

Example 3: Customize elementFormDefault

    @javax.xml.bind.annotation.XmlSchema (
      elementFormDefault=XmlNsForm.UNQUALIFIED
      ...
    )
 
    <!-- XML Schema fragment -->
    <schema
        xmlns="http://www.w3.org/2001/XMLSchema"
        xmlns:po="http://www.example.com/PO1"
        elementFormDefault="unqualified">

Since:: JAXB2.0

Optional Element Summary

XmlNsForm attributeFormDefault
          Namespace qualification for attributes.

XmlNsForm elementFormDefault
          Namespace qualification for elements.

String namespace
          Name of the XML namespace.

XmlNs[] xmlns
          Customize the namespace URI, prefix associations.

Optional Element Summary
`XmlNsForm`	`attributeFormDefault` Namespace qualification for attributes.
`XmlNsForm`	`elementFormDefault` Namespace qualification for elements.
`String`	`namespace` Name of the XML namespace.
`XmlNs[]`	`xmlns` Customize the namespace URI, prefix associations.

xmlns

public abstract XmlNs[] xmlns

Customize the namespace URI, prefix associations. By default, the namespace prefixes for a XML namespace are generated by a JAXB Provider in an implementation dependent way.

Default:: {}

namespace

public abstract String namespace

Name of the XML namespace.

Default:: ""

elementFormDefault

public abstract XmlNsForm elementFormDefault

Namespace qualification for elements. By default, element default attribute will be absent from the XML Schema fragment.

Default:: javax.xml.bind.annotation.XmlNsForm.UNSET

attributeFormDefault

public abstract XmlNsForm attributeFormDefault

Namespace qualification for attributes. By default, attributesFormDefault will be absent from the XML Schema fragment.

Default:: javax.xml.bind.annotation.XmlNsForm.UNSET