Interface FieldTransformer
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- All Superinterfaces:
CoreFieldTransformer<Session>,java.io.Serializable
- All Known Implementing Classes:
ConstantTransformer,FieldTransformerAdapter,MethodBasedFieldTransformer
public interface FieldTransformer extends CoreFieldTransformer<Session>
PUBLIC: This interface is used by the Transformation Mapping to build the value for a specific field. The user must provide implementations of this interface to the Transformation Mapping.- Author:
- mmacivor
- Since:
- 10.1.3
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Field Summary
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Fields inherited from interface org.eclipse.persistence.core.mappings.transformers.CoreFieldTransformer
BUILD_FIELD_VALUE_METHOD
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.ObjectbuildFieldValue(java.lang.Object instance, java.lang.String fieldName, Session session)voidinitialize(AbstractTransformationMapping mapping)Initialize this transformer.
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Method Detail
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initialize
void initialize(AbstractTransformationMapping mapping)
Initialize this transformer. Only required if the user needs some special information from the mapping in order to do the transformation- Parameters:
mapping- - the mapping this transformer is associated with.
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buildFieldValue
java.lang.Object buildFieldValue(java.lang.Object instance, java.lang.String fieldName, Session session)- Specified by:
buildFieldValuein interfaceCoreFieldTransformer<Session>- Parameters:
instance- - an instance of the domain class which contains the attributesession- - the current sessionfieldName- - the name of the field being transformed. Used if the user wants to use this transformer for multiple fields.- Returns:
- - The value to be written for the field associated with this transformer
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