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Oracle Fusion Middleware Java API Reference for Oracle TopLink 11g Release 1 (11.1.1) E28847-01 |
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@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface XmlKey
XmlKey is used to mark a property as a key, to be referenced using a key-based mapping via XmlJoinNode
. This is similar to the XmlID
annotation, 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; }
XmlJoinNode
, XmlJoinNodes
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