Module org.eclipse.persistence.core

Package org.eclipse.persistence.internal.expressions

Class ExpressionOperatorConverter

java.lang.Object

org.eclipse.persistence.mappings.converters.ObjectTypeConverter

org.eclipse.persistence.internal.expressions.ExpressionOperatorConverter

All Implemented Interfaces:

Serializable, CoreConverter<DatabaseMapping,Session>, ClassNameConversionRequired, Converter

public class ExpressionOperatorConverter
extends ObjectTypeConverter

INTERNAL: Used by function operators in deployment xml generation to accomodate custom functions. There is no more validation on read because any custom function has to be accepted. The custom function is assumed to be a normal prefix function. The first element in the databaseStrings of the operator is in the format of databaseString(, e.g. AVG(. "(" will be removed on write and attached back on read.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.eclipse.persistence.mappings.converters.ObjectTypeConverter

addToAttributeOnlyConversionValueStrings, attributeToFieldValues, conversionValueStrings, converterName, dataType, dataTypeName, defaultAttributeValue, defaultAttributeValueString, fieldClassification, fieldClassificationName, fieldToAttributeValues, mapping, objectType, objectTypeName

Constructor Summary

Constructors

Constructor	Description
ExpressionOperatorConverter()

Method Summary

Modifier and Type	Method	Description
Object	convertDataValueToObjectValue(Object fieldValue, Session session)	INTERNAL: Returns the corresponding attribute value for the specified field value.
Object	convertObjectValueToDataValue(Object attributeValue, Session session)	INTERNAL: Convert to the data value.

Methods inherited from class org.eclipse.persistence.mappings.converters.ObjectTypeConverter

addConversionValue, addConversionValueStrings, addToAttributeOnlyConversionValue, addToAttributeOnlyConversionValueStrings, convertClassNamesToClasses, getAttributeToFieldValues, getDefaultAttributeValue, getFieldClassification, getFieldClassification, getFieldClassificationName, getFieldToAttributeValueAssociations, getFieldToAttributeValues, getMapping, initialize, initializeFieldClassification, isMutable, loadClass, mapBooleans, mapGenders, mapResponses, setAttributeToFieldValues, setConverterName, setDataTypeName, setDefaultAttributeValue, setDefaultAttributeValueString, setFieldClassification, setFieldClassificationName, setFieldToAttributeValueAssociations, setFieldToAttributeValues, setMapping, setObjectTypeName, throwInitObjectException

Methods inherited from class java.lang.Object

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

Constructor Details

ExpressionOperatorConverter

public ExpressionOperatorConverter()

Method Details

convertObjectValueToDataValue

public Object convertObjectValueToDataValue(Object attributeValue,
 Session session)

INTERNAL: Convert to the data value.

Specified by:

convertObjectValueToDataValue in interface Converter

Specified by:

convertObjectValueToDataValue in interface CoreConverter<DatabaseMapping,Session>

Overrides:

convertObjectValueToDataValue in class ObjectTypeConverter

convertDataValueToObjectValue

public Object convertDataValueToObjectValue(Object fieldValue,
 Session session)

INTERNAL: Returns the corresponding attribute value for the specified field value.

Specified by:

convertDataValueToObjectValue in interface Converter

Specified by:

convertDataValueToObjectValue in interface CoreConverter<DatabaseMapping,Session>

Overrides:

convertDataValueToObjectValue in class ObjectTypeConverter