bdoughan/blog20110322

Example demonstrating how EclipseLink JAXB (MOXy) can map a field/property to an element based on the value of one of its attributes.

Map to Element based on an Attribute Value with EclipseLink JAXB (MOXy)

This is the complete source code for the following blog post:

• http://blog.bdoughan.com/2011/03/map-to-element-based-on-attribute-value.html

Summary

In EclipseLink 2.3 the @XmlPath annotation was enhanced to support predicates. This allows us to map the class below:

@XmlRootElement(name="node")
public class Customer {

    @XmlPath("node[@name='name']/text()")
    private String name;

    @XmlPath("node[@name='address']")
    private Address address;

    @XmlPath("node[@name='phone-number']")
    private List<PhoneNumber> phoneNumbers;

}

To the following XML:

<?xml version="1.0" encoding="UTF-8"?>
<node>
    <node name="name">Jane Doe</node>
    <node name="address">
        <node name="street">123 A Street</node>
    </node>
    <node name="phone-number" type="work">555-1111</node>
    <node name="phone-number" type="cell">555-2222</node>
</node>

Compile the Example

You can compile the example code using the following command. Maven will automatically fetch the required dependencies.

 mvn compile

Run the Example

You can run the example using the following command.

mvn exec:java