Package org.eclipse.persistence.core.mappings.transformers

Interface CoreFieldTransformer<SESSION extends CoreSession>

All Superinterfaces:

Serializable

All Known Subinterfaces:

FieldTransformer

All Known Implementing Classes:

ConstantTransformer, FieldTransformerAdapter, MethodBasedFieldTransformer, NamespaceURITransformer, QNameTransformer

public interface CoreFieldTransformer<SESSION extends CoreSession>
extends Serializable

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.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	BUILD_FIELD_VALUE_METHOD	Method name should be same as the value of this field.

Method Summary

Modifier and Type	Method	Description
Object	buildFieldValue(Object instance, String fieldName, SESSION session)

Field Details

BUILD_FIELD_VALUE_METHOD

static final String BUILD_FIELD_VALUE_METHOD

Method name should be same as the value of this field. This field is used to find method name in reflection call.

See Also:

• Constant Field Values

Method Details

buildFieldValue

Object buildFieldValue(Object instance,
 String fieldName,
 SESSION session)

Parameters:

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

session - - the current session

fieldName - - 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