Package org.eclipse.persistence.mappings.transformers

Class FieldTransformerAdapter

java.lang.Object

org.eclipse.persistence.mappings.transformers.FieldTransformerAdapter

All Implemented Interfaces:

Serializable, CoreFieldTransformer<Session>, FieldTransformer

Direct Known Subclasses:

ConstantTransformer

public class FieldTransformerAdapter
extends 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: FieldTransformerAdapter.java 11-jul-2006.10:33:44 gyorke Exp $

See Also:

• FieldTransformer
• Serialized Form

Author:

mmacivor

Field Summary

Fields inherited from interface org.eclipse.persistence.core.mappings.transformers.CoreFieldTransformer

BUILD_FIELD_VALUE_METHOD

Constructor Summary

Constructors

Constructor	Description
FieldTransformerAdapter()

Method Summary

Modifier and Type	Method	Description
Object	buildFieldValue(Object object, 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 Details

FieldTransformerAdapter

public FieldTransformerAdapter()

Method Details

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 Object buildFieldValue(Object object,
 String fieldName,
 Session session)

Specified by:

buildFieldValue in interface CoreFieldTransformer<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