org.eclipse.persistence.mappings.foundation

Class AbstractColumnMapping

java.lang.Object

org.eclipse.persistence.core.mappings.CoreMapping<AttributeAccessor,org.eclipse.persistence.internal.sessions.AbstractSession,org.eclipse.persistence.internal.queries.ContainerPolicy,ClassDescriptor,org.eclipse.persistence.internal.helper.DatabaseField>

org.eclipse.persistence.mappings.DatabaseMapping

org.eclipse.persistence.mappings.foundation.AbstractColumnMapping

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

AbstractDirectMapping, MultitenantPrimaryKeyMapping

public abstract class AbstractColumnMapping
extends DatabaseMapping

Purpose: Maps an attribute or some other property to the corresponding database field type. The list of field types that are supported by EclipseLink's direct to field mapping is dependent on the relational database being used.

Since:

TopLink/Java 1.0

Author:

Guy Pelletier

See Also:

AbstractDirectMapping, org.eclipse.persistence.mappings.foundation.MultitenantPrimaryKeyMapping, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.persistence.mappings.DatabaseMapping

DatabaseMapping.WriteType

Constructor Summary

Constructors

Constructor and Description
AbstractColumnMapping() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	cascadePerformRemoveIfRequired(java.lang.Object object, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow, java.util.Map visitedObjects) INTERNAL: Cascade perform delete through mappings that require the cascade.
void	cascadeRegisterNewIfRequired(java.lang.Object object, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow, java.util.Map visitedObjects) INTERNAL: Cascade registerNew for Create through mappings that require the cascade.
java.lang.Object	clone() INTERNAL: The mapping clones itself to create deep copy.
void	convertClassNamesToClasses(java.lang.ClassLoader classLoader) INTERNAL: Convert all the class-name-based settings in this mapping to actual class-based settings This method is implemented by subclasses as necessary.
void	fixObjectReferences(java.lang.Object object, java.util.Map objectDescriptors, java.util.Map processedObjects, ObjectLevelReadQuery query, DistributedSession session) INTERNAL: An object has been serialized from the server to the client.
Converter	getConverter() PUBLIC: Return the converter on the mapping.
org.eclipse.persistence.internal.helper.DatabaseField	getField() INTERNAL: Returns the field which this mapping represents.
abstract java.lang.Object	getFieldValue(java.lang.Object objectValue, org.eclipse.persistence.internal.sessions.AbstractSession session) INTERNAL: Convert the object (attribute or property) value to a field value.
abstract java.lang.Object	getObjectValue(java.lang.Object fieldValue, Session session) INTERNAL: Allows for subclasses to convert the the attribute or property value.
boolean	hasConverter() Indicates if the mapping has a converter set on it.
boolean	isAbstractColumnMapping() INTERNAL:
void	iterate(org.eclipse.persistence.internal.descriptors.DescriptorIterator iterator) INTERNAL: Iterate on the appropriate attribute.
void	setConverter(Converter converter) PUBLIC: Set the converter on the mapping.
void	setConverterClassName(java.lang.String converterClassName) PUBLIC: Set the converter class name on the mapping.
void	setField(org.eclipse.persistence.internal.helper.DatabaseField theField) ADVANCED: Set the field in the mapping.
java.lang.String	toString() INTERNAL:

Methods inherited from class org.eclipse.persistence.mappings.DatabaseMapping

addUnconvertedProperty, buildBackupClone, buildBackupCloneForPartObject, buildChangeRecord, buildClone, buildCloneForPartObject, buildCloneFromRow, buildContainerClone, buildCopy, buildExpression, buildObjectJoinExpression, buildObjectJoinExpression, buildShallowOriginalFromRow, calculateDeferredChanges, cascadeDiscoverAndPersistUnregisteredNewObjects, cascadePerformRemovePrivateOwnedObjectFromChangeSetIfRequired, collectQueryParameters, compareForChange, compareObjects, createCloneValueHolder, derivesId, earlyPreDelete, fixRealObjectReferences, getAttributeAccessor, getAttributeClassification, getAttributeName, getAttributeValueFromObject, getContainerPolicy, getDerivedIdMapping, getDescriptor, getFieldClassification, getFields, getGetMethodName, getMapsIdValue, getObjectCorrespondingTo, getOrderByNormalizedExpressions, getProperties, getProperty, getRealAttributeValueFromAttribute, getRealAttributeValueFromObject, getRealCollectionAttributeValueFromObject, getReferenceDescriptor, getRelationshipPartner, getSelectFields, getSelectTables, getSetMethodName, getUnconvertedProperties, getValueFromRemoteValueHolder, getWeight, hasConstraintDependency, hasDependency, hasInverseConstraintDependency, hasMapsIdValue, hasNestedIdentityReference, hasUnconvertedProperties, initialize, instantiateAttribute, isAbstractCompositeCollectionMapping, isAbstractCompositeDirectCollectionMapping, isAbstractCompositeObjectMapping, isAbstractDirectMapping, isAggregateCollectionMapping, isAggregateMapping, isAggregateObjectMapping, isAttributeValueFromObjectInstantiated, isCacheable, isCandidateForPrivateOwnedRemoval, isCascadedLockingSupported, isChangeTrackingSupported, isCloningRequired, isCollectionMapping, isDatabaseMapping, isDirectCollectionMapping, isDirectMapMapping, isDirectToFieldMapping, isDirectToXMLTypeMapping, isEISMapping, isElementCollectionMapping, isForeignReferenceMapping, isInAndOutSopObject, isInOnlySopObject, isInSopObject, isJoiningSupported, isJPAId, isLazy, isLockableMapping, isManyToManyMapping, isManyToOneMapping, isMapKeyMapping, isMultitenantPrimaryKeyMapping, isNestedTableMapping, isObjectReferenceMapping, isOneToManyMapping, isOneToOneMapping, isOptional, isOutOnlySopObject, isOutSopObject, isOwned, isPrimaryKeyMapping, isPrivateOwned, isReadOnly, isReferenceMapping, isRelationalMapping, isStructureMapping, isTransformationMapping, isUnidirectionalOneToManyMapping, isUsingMethodAccess, isVariableOneToOneMapping, isWriteOnly, isXMLMapping, iterateOnRealAttributeValue, load, loadAll, mergeChangesIntoObject, mergeIntoObject, performDataModificationEvent, postCalculateChanges, postCalculateChangesOnDeleted, postDelete, postInitialize, postInitializeSourceAndTargetExpressions, postInsert, postUpdate, preDelete, preInitialize, preInsert, prepareCascadeLockingPolicy, preUpdate, readFromResultSetIntoObject, readFromRowIntoObject, readOnly, readWrite, recordPrivateOwnedRemovals, rehashFieldDependancies, remoteInitialization, replaceValueHoldersIn, setAttributeAccessor, setAttributeName, setAttributeValueInObject, setChangeListener, setDerivedIdMapping, setDerivesId, setDescriptor, setGetMethodName, setIsCacheable, setIsInAndOutSopObject, setIsInSopObject, setIsJPAId, setIsLazy, setIsMapKeyMapping, setIsOptional, setIsOutSopObject, setIsPrimaryKeyMapping, setIsReadOnly, setMapsIdValue, setProperties, setProperty, setRealAttributeValueInObject, setSetMethodName, setWeight, simpleAddToCollectionChangeRecord, simpleRemoveFromCollectionChangeRecord, updateChangeRecord, updateCollectionChangeRecord, validateAfterInitialization, validateBeforeInitialization, valueFromObject, valueFromResultSet, valueFromRow, valueFromRow, verifyDelete, writeFromAttributeIntoRow, writeFromObjectIntoRow, writeFromObjectIntoRowForShallowInsert, writeFromObjectIntoRowForShallowInsertWithChangeRecord, writeFromObjectIntoRowForUpdate, writeFromObjectIntoRowForUpdateAfterShallowInsert, writeFromObjectIntoRowForUpdateBeforeShallowDelete, writeFromObjectIntoRowForWhereClause, writeFromObjectIntoRowWithChangeRecord, writeInsertFieldsIntoRow, writeUpdateFieldsIntoRow

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AbstractColumnMapping

public AbstractColumnMapping()

Default constructor.

Method Detail

cascadePerformRemoveIfRequired

public void cascadePerformRemoveIfRequired(java.lang.Object object,
                                  org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow,
                                  java.util.Map visitedObjects)

INTERNAL: Cascade perform delete through mappings that require the cascade.

Specified by:

cascadePerformRemoveIfRequired in class DatabaseMapping

cascadeRegisterNewIfRequired

public void cascadeRegisterNewIfRequired(java.lang.Object object,
                                org.eclipse.persistence.internal.sessions.UnitOfWorkImpl uow,
                                java.util.Map visitedObjects)

INTERNAL: Cascade registerNew for Create through mappings that require the cascade.

Specified by:

cascadeRegisterNewIfRequired in class DatabaseMapping

clone

public java.lang.Object clone()

INTERNAL: The mapping clones itself to create deep copy.

Overrides:

clone in class DatabaseMapping

convertClassNamesToClasses

public void convertClassNamesToClasses(java.lang.ClassLoader classLoader)

INTERNAL: Convert all the class-name-based settings in this mapping to actual class-based settings This method is implemented by subclasses as necessary.

Overrides:

convertClassNamesToClasses in class DatabaseMapping

fixObjectReferences

public void fixObjectReferences(java.lang.Object object,
                       java.util.Map objectDescriptors,
                       java.util.Map processedObjects,
                       ObjectLevelReadQuery query,
                       DistributedSession session)

INTERNAL: An object has been serialized from the server to the client. Replace the transient attributes of the remote value holders with client-side objects.

Specified by:

fixObjectReferences in class DatabaseMapping

getConverter

public Converter getConverter()

PUBLIC: Return the converter on the mapping. A converter can be used to convert between the object's value and database value of the attribute.

getField

public org.eclipse.persistence.internal.helper.DatabaseField getField()

INTERNAL: Returns the field which this mapping represents.

Overrides:

getField in class DatabaseMapping

getFieldValue

public abstract java.lang.Object getFieldValue(java.lang.Object objectValue,
                             org.eclipse.persistence.internal.sessions.AbstractSession session)

INTERNAL: Convert the object (attribute or property) value to a field value.

getObjectValue

public abstract java.lang.Object getObjectValue(java.lang.Object fieldValue,
                              Session session)

INTERNAL: Allows for subclasses to convert the the attribute or property value.

hasConverter

public boolean hasConverter()

Indicates if the mapping has a converter set on it.

Returns:

true if there is a converter set on the mapping, false otherwise.

isAbstractColumnMapping

public boolean isAbstractColumnMapping()

INTERNAL:

Overrides:

isAbstractColumnMapping in class DatabaseMapping

iterate

public void iterate(org.eclipse.persistence.internal.descriptors.DescriptorIterator iterator)

INTERNAL: Iterate on the appropriate attribute.

Specified by:

iterate in class DatabaseMapping

setConverter

public void setConverter(Converter converter)

PUBLIC: Set the converter on the mapping. A converter can be used to convert between the object's value and database value of the attribute.

setConverterClassName

public void setConverterClassName(java.lang.String converterClassName)

PUBLIC: Set the converter class name on the mapping. It will be instantiated during the convertClassNamesToClasses. A converter can be used to convert between the object's value and database value of the attribute.

setField

public void setField(org.eclipse.persistence.internal.helper.DatabaseField theField)

ADVANCED: Set the field in the mapping. This can be used for advanced field types, such as XML nodes, or to set the field type.

toString

public java.lang.String toString()

INTERNAL:

Overrides:

toString in class DatabaseMapping