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EclipseLink 2.3.2, build 'v20111125-r10461' API Reference | ||||||||
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@Target(value={METHOD,FIELD}) @Retention(value=RUNTIME) public @interface WriteTransformer
Annotation for org.eclipse.persistence.mappings.TransformationMapping. WriteTransformer defines transformation of the attribute value to a single database column value (column is specified in the WriteTransformer). A single WriteTransformer may be specified directly on the method or attribute. Multiple WriteTransformers should be wrapped into WriteTransformers annotation. No WriteTransformers specified for read-only mapping. Unless the TransformationMapping is write-only, it should have a ReadTransformer, it defines transformation of database column(s) value(s) into attribute value.
ReadTransformer
,
Transformation
,
Transformation can be specified within an Entity, MappedSuperclass
and Embeddable class.
Optional Element Summary | |
---|---|
Column |
column
Specify here the column into which the value should be written. |
java.lang.String |
method
The mapped class must have a method with this name which returns a value to be written into the database column. |
java.lang.Class |
transformerClass
User-defined class that must implement the org.eclipse.persistence.mappings.transformers.FieldTransformer interface. |
public abstract java.lang.Class transformerClass
public abstract java.lang.String method
public abstract Column column
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EclipseLink 2.3.2, build 'v20111125-r10461' API Reference | ||||||||
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SUMMARY: REQUIRED | OPTIONAL | DETAIL: ELEMENT |