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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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SUMMARY: REQUIRED | OPTIONAL | DETAIL: ELEMENT |
@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).
XmlReadTransformer
, XmlWriteTransformer
, XmlWriteTransformers
Optional Element Summary | |
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boolean |
optional (Optional) The optional element is a hint as to whether the value of the field or property may be null. |
public abstract boolean optional
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