Annotation Type XmlKey
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@Target({METHOD,FIELD}) @Retention(RUNTIME) public @interface XmlKeyXmlKey is used to mark a property as a key, to be referenced using a key-based mapping via
XmlJoinNode. This is similar to theXmlIDannotation, but doesn't require the property be bound to the schema type ID. XmlKey is typically used in the composite key use case, since only 1 property can be annotated with the XmlID annotation.Example:
@XmlRootElement @XmlAccessorType(XmlAccessType.FIELD) public class Employee { @XmlKey public String id; @XmlKey public String department; @XmlJoinNodes({ @XmlJoinNode(xmlPath="manager/id/text()", referencedXmlPath="id/text()"), @XmlJoinNode(xmlPath="manager/dept/text()", referencedXmlPath="department/text()") }) public Employee manager; }- See Also:
XmlJoinNode,XmlJoinNodes