Jump to: navigation, search

EclipseLink/UserGuide/MOXy/Type Level/Setting Up Namespace Information

EclipseLink MOXy

link="http://wiki.eclipse.org/EclipseLink"
EclipseLink
Website
Download
Community
Mailing ListForumsIRC
Bugzilla
Open
Help Wanted
Bug Day
Contribute
Browse Source

Elug api package icon.png Key API

Setting Up Namespace Information

Most XML documents are qualified with a namespace. You can namespace-qualify elements of your Java class at the following levels:

  • Package
  • Type
  • Field / Property

In most cases, package-level annotation is sufficient. You can use the other levels to customize your document. Use the the @XmlSchema annotation to specify the namespace.


Package Level

Use the @XmlSchema annotation on the package to set a default namespace and specify that all elements in the package are qualified with the namespace. This information is specified in a special Java source file, package-info.java.

@XmlSchema(
   namespace="http://www.example.org/package",
   elementFormDefault=XmlNsForm.QUALIFIED)
package example;
 
import javax.xml.bind.annotation.XmlNsForm;
import javax.xml.bind.annotation.XmlSchema;

This will produce the following XML:

<customer xmlns="http://www.example.org/package">
   <name>Jane Doe</name>
</customer>

All elements are qualified with the "http://www.example.org/package" namespace.


Type Level

Type level annotations will override the package level namespace.

@XmlRootElement
@XmlType(namespace="http://www.example.org/type")
public class Customer {
   private String name;
 
   private String account;
 
   ...
}

This will produce the following XML:

<ns2:customer xmlns="http://www.example.org/type" xmlns:ns2="http://www.example.org/package">
    <name>Jane Doe</name>
    <account>36328721</account>
</ns2:customer>

Only elements inside the Customer type are qualified with the "http://www.example.org/type" namespace.


Field/Property Level

You can override the package or type namespaces at the property/field level. All attribute and element annotations accept the namespace parameter.

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(namespace="http://www.example.org/type")
public class Customer {
   private String name;
 
   @XmlElement(namespace="http://www.example.org/property")
   private String account;
 
   ...
}

This will produce the following XML:

<ns3:customer xmlns="http://www.example.org/type" xmlns:ns2="http://www.example.org/property" xmlns:ns3="http://www.example.org/package">
    <name>Jane Doe</name>
    <ns2:account>36328721</ns2:account>
</ns3:customer>

Only the account element is qualified with the "http://www.example.org/property" namespace.


Eclipselink-logo.gif
Version: 2.2.0
Other versions...