org.eclipse.persistence.oxm.annotations

Annotation Type XmlTransformation

@Target(value={METHOD,FIELD})
 @Retention(value=RUNTIME)
public @interface XmlTransformation

Transformation is an optional annotation for org.eclipse.persistence.mappings.oxm.XMLTransformationMapping. TransformationMapping allows to map an attribute to one or more database columns. Transformation annotation is an optional part of TransformationMapping definition. Unless the TransformationMapping is write-only, it should have a ReadTransformer, it defines transformation of xml data value(s)into attribute value. Also unless it's a read-only mapping, either WriteTransformer annotation or WriteTransformers annotation should be specified. Each WriteTransformer defines transformation of the attribute value to a single xml field value (XPath is specified in the WriteTransformer).

See Also:

XmlReadTransformer, XmlWriteTransformer, XmlWriteTransformers

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	optional (Optional) The optional element is a hint as to whether the value of the field or property may be null.

Element Detail

optional

public abstract boolean optional

(Optional) The optional element is a hint as to whether the value of the field or property may be null. It is disregarded for primitive types, which are considered non-optional.

Default:

true