org.eclipse.persistence.mappings.transformers
Class FieldTransformerAdapter

java.lang.Object
  org.eclipse.persistence.mappings.transformers.FieldTransformerAdapter

All Implemented Interfaces:

java.io.Serializable, FieldTransformer

Direct Known Subclasses:

ConstantTransformer

public class FieldTransformerAdapter
extends java.lang.Object
implements FieldTransformer

Purpose: Provides an empty implementation of FieldTransformer. Users who do not require the full FieldTransformer API can subclass this class and implement only the methods required.

Version:

$Header: /cvsroot/org.eclipse/www/eclipselink/api/1.0/org/eclipse/persistence/mappings/transformers/FieldTransformerAdapter.html,v 1.8 2008/07/08 20:20:38 pkrogh Exp $

See Also:

org.eclipse.persistence.mappings.FieldTransformer, Serialized Form

Author:

mmacivor

Since:

10

Constructor Summary

FieldTransformerAdapter()

Method Summary

java.lang.Object	buildFieldValue(java.lang.Object object, java.lang.String fieldName, Session session)
void	initialize(AbstractTransformationMapping mapping) Initialize this transformer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FieldTransformerAdapter

public FieldTransformerAdapter()

Method Detail

initialize

public void initialize(AbstractTransformationMapping mapping)

Description copied from interface: FieldTransformer

Initialize this transformer. Only required if the user needs some special information from the mapping in order to do the transformation

Specified by:

initialize in interface FieldTransformer

Parameters:

mapping - - the mapping this transformer is associated with.

buildFieldValue

public java.lang.Object buildFieldValue(java.lang.Object object,
                                        java.lang.String fieldName,
                                        Session session)

Specified by:

buildFieldValue in interface FieldTransformer

Parameters:

object - - an instance of the domain class which contains the attribute

fieldName - - the name of the field being transformed. Used if the user wants to use this transformer for multiple fields.

session - - the current session

Returns:

- The value to be written for the field associated with this transformer