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Difference between revisions of "EclipseLink/UserGuide/MOXy/Type Level/Setting Up Namespace Information"

Line 53: Line 53:
 
public class Customer {
 
public class Customer {
 
   private String name;
 
   private String name;
 +
 
 
   private String account;
 
   private String account;
 
}
 
}
Line 70: Line 71:
  
 
== Field/Property Level ==
 
== 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.
+
 
 +
You can override the package or type namespaces at the property/field level. All attribute and element annotations accept the <tt>namespace</tt> parameter.
  
 
<source lang="java">
 
<source lang="java">
package example;
 
 
import javax.xml.bind.annotation.XmlAttribute;
 
import javax.xml.bind.annotation.XmlRootElement;
 
import javax.xml.bind.annotation.XmlType;
 
 
 
@XmlRootElement
 
@XmlRootElement
 +
@XmlAccessorType(XmlAccessType.FIELD)
 
@XmlType(namespace="http://www.example.org/type")
 
@XmlType(namespace="http://www.example.org/type")
 
public class Customer {
 
public class Customer {
+
  private String name;
    private long id;
+
 
    private String name;
+
  @XmlElement(namespace="http://www.example.org/property")
+
  private String account;
    @XmlAttribute
+
    public long getId() {
+
        return id;
+
    }
+
+
    public void setId(long id) {
+
        this.id = id;
+
    }
+
+
    @XmlElement(namespace="http://www.example.org/property")
+
    public String getName() {
+
        return name;
+
    }
+
+
    public void setName(String name) {
+
        this.name = name;
+
    }
+
+
 
}
 
}
 
</source>
 
</source>

Revision as of 17:14, 6 January 2011

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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:

<ns2:customer
    xmlns="http://www.example.org/property"
    xmlns:ns2="http://www.example.org/package"
    id="123">
    <name>Jane Doe</name>
</ns2:customer>

The Name element is qualified with the http://www.example.org/property namespace.


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