EclipseLink 2.2.0, build 'v20110202-r8913' API Reference

org.eclipse.persistence.mappings.foundation
Class AbstractCompositeDirectCollectionMapping

java.lang.Object
  extended by org.eclipse.persistence.mappings.DatabaseMapping
      extended by org.eclipse.persistence.mappings.foundation.AbstractCompositeDirectCollectionMapping
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, ContainerMapping
Direct Known Subclasses:
ArrayMapping, EISCompositeDirectCollectionMapping, XMLCompositeDirectCollectionMapping, XMLFragmentCollectionMapping

public abstract class AbstractCompositeDirectCollectionMapping
extends DatabaseMapping
implements ContainerMapping

AbstractCompositeDirectCollectionMapping consolidates the behavior of mappings that map collections of "native" data objects (e.g. Strings). These are objects that do not have their own descriptor and repeat within the XML record for the containing object.

See Also:
Serialized Form
Author:
Big Country
Since:
TOPLink/Java 3.0

Nested Class Summary
 
Nested classes/interfaces inherited from class org.eclipse.persistence.mappings.DatabaseMapping
DatabaseMapping.WriteType
 
Field Summary
protected  java.lang.String elementDataTypeName
          This is the "data type" associated with each element in the nested collection.
protected  org.eclipse.persistence.internal.helper.DatabaseField field
          This is the field holding the nested collection.
protected  Converter valueConverter
          Allows user defined conversion between the object value and the database value.
 
Fields inherited from class org.eclipse.persistence.mappings.DatabaseMapping
attributeAccessor, attributeName, derivedIdMapping, derivesId, descriptor, fields, isCacheable, isJPAId, isLazy, isMapKeyMapping, isOptional, isPrimaryKeyMapping, isReadOnly, isRemotelyInitialized, mapsIdValue, NO_FIELDS, NO_WEIGHT, properties, weight, WEIGHT_AGGREGATE, WEIGHT_DIRECT, WEIGHT_TO_ONE, WEIGHT_TRANSFORM
 
Constructor Summary
AbstractCompositeDirectCollectionMapping()
          Default constructor.
 
Method Summary
 java.lang.Object buildAddedElementFromChangeSet(java.lang.Object changeSet, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
          INTERNAL: Build and return a new element based on the change set.
 void buildBackupClone(java.lang.Object clone, java.lang.Object backup, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork)
          INTERNAL: Clone the attribute from the clone and assign it to the backup.
 java.lang.Object buildChangeSet(java.lang.Object element, org.eclipse.persistence.internal.sessions.ObjectChangeSet owner, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Build and return a change set for the specified element.
 void buildClone(java.lang.Object original, org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey, java.lang.Object clone, org.eclipse.persistence.internal.sessions.AbstractSession cloningSession)
          INTERNAL: Clone the attribute from the original and assign it to the clone.
 void buildCloneFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager, java.lang.Object clone, org.eclipse.persistence.internal.identitymaps.CacheKey sharedCacheKey, ObjectBuildingQuery sourceQuery, org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork, org.eclipse.persistence.internal.sessions.AbstractSession executionSession)
          INTERNAL: Extract value from the row and set the attribute to this value in the working copy clone.
protected  java.lang.Object buildClonePart(java.lang.Object attributeValue, org.eclipse.persistence.internal.identitymaps.CacheKey parentCacheKey, org.eclipse.persistence.internal.sessions.AbstractSession cloningSession)
          Build and return a clone of the specified attribute value.
 void buildCopy(java.lang.Object copy, java.lang.Object original, CopyGroup group)
          INTERNAL: Copy of the attribute of the object.
protected  java.lang.Object buildElementFromChangeSet(java.lang.Object changeSet, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
          Build and return a new element based on the change set.
 java.lang.Object buildElementFromElement(java.lang.Object object, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
          INTERNAL: Build and return a new element based on the specified element.
 java.lang.Object buildRemovedElementFromChangeSet(java.lang.Object changeSet, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
          INTERNAL: Build and return a new element based on the change set.
 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
protected  java.util.Vector collectFields()
          Return the fields handled by the mapping.
 boolean compareElements(java.lang.Object element1, java.lang.Object element2, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Compare the non-null elements.
 boolean compareElementsForChange(java.lang.Object element1, java.lang.Object element2, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Compare the non-null elements and return true if they are alike.
 org.eclipse.persistence.internal.sessions.ChangeRecord compareForChange(java.lang.Object clone, java.lang.Object backup, org.eclipse.persistence.internal.sessions.ObjectChangeSet owner, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Build and return the change record that results from comparing the two direct collection attributes.
 boolean compareObjects(java.lang.Object object1, java.lang.Object object2, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Compare the attributes belonging to this mapping for the objects.
 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.
protected  org.eclipse.persistence.internal.sessions.ChangeRecord convertToChangeRecord(java.lang.Object cloneCollection, org.eclipse.persistence.internal.sessions.ObjectChangeSet owner, org.eclipse.persistence.internal.sessions.AbstractSession session)
           
 void fixObjectReferences(java.lang.Object object, java.util.Map objectDescriptors, java.util.Map processedObjects, ObjectLevelReadQuery query, RemoteSession session)
          INTERNAL: An object has been serialized from the server to the client.
 java.lang.Class getAttributeElementClass()
          PUBLIC: Return the class each element in the object's collection should be converted to, before the collection is inserted into the object.
 org.eclipse.persistence.internal.queries.ContainerPolicy getContainerPolicy()
          INTERNAL: Return the mapping's containerPolicy.
 org.eclipse.persistence.internal.helper.DatabaseField getField()
          INTERNAL: Return the field that holds the nested collection.
 java.lang.Class getFieldClassification(org.eclipse.persistence.internal.helper.DatabaseField fieldToClassify)
          INTERNAL: Return the classifiction for the field contained in the mapping.
 java.lang.Class getFieldElementClass()
          PUBLIC: Return the class each element in the database row's collection should be converted to, before the collection is inserted into the database.
 java.lang.String getFieldName()
          PUBLIC: Return the name of the field that holds the nested collection.
 java.lang.Object getRealCollectionAttributeValueFromObject(java.lang.Object object, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Convenience method.
 Converter getValueConverter()
          PUBLIC: Return the converter on the mapping.
 boolean hasValueConverter()
          PUBLIC: Indicates if there is a converter on the mapping.
 void initialize(org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Initialize the mapping.
 boolean isAbstractCompositeDirectCollectionMapping()
          INTERNAL:
 boolean isCollectionMapping()
          INTERNAL: Related mapping should implement this method to return true.
 void iterate(org.eclipse.persistence.internal.descriptors.DescriptorIterator iterator)
          INTERNAL: Iterate on the appropriate attribute value.
 boolean mapKeyHasChanged(java.lang.Object element, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Return whether the element's user-defined Map key has changed since it was cloned from the original version.
 void mergeChangesIntoObject(java.lang.Object target, org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord, java.lang.Object source, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
          INTERNAL: Merge changes from the source to the target object.
 void mergeIntoObject(java.lang.Object target, boolean isTargetUnInitialized, java.lang.Object source, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
          INTERNAL: Merge changes from the source to the target object.
 void setAttributeElementClass(java.lang.Class attributeElementClass)
          PUBLIC: Set the class each element in the object's collection should be converted to, before the collection is inserted into the object.
 void setContainerPolicy(org.eclipse.persistence.internal.queries.ContainerPolicy containerPolicy)
          ADVANCED: Set the mapping's containerPolicy.
 void setField(org.eclipse.persistence.internal.helper.DatabaseField field)
          Set the field that holds the nested collection.
 void setFieldElementClass(java.lang.Class fieldElementClass)
          PUBLIC: Set the class each element in the database row's collection should be converted to, before the collection is inserted into the database.
 void setUsesSingleNode(boolean usesSingleNode)
          PUBLIC: Sets whether the mapping uses a single node.
 void setValueConverter(Converter valueConverter)
          PUBLIC: Set the converter on the mapping.
 void simpleAddToCollectionChangeRecord(java.lang.Object referenceKey, java.lang.Object changeSetToAdd, org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet, org.eclipse.persistence.internal.sessions.AbstractSession session)
          ADVANCED: This method is used to have an object add to a collection once the changeSet is applied The referenceKey parameter should only be used for direct Maps.
 void simpleRemoveFromCollectionChangeRecord(java.lang.Object referenceKey, java.lang.Object changeSetToRemove, org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet, org.eclipse.persistence.internal.sessions.AbstractSession session)
          ADVANCED: This method is used to have an object removed from a collection once the changeSet is applied The referenceKey parameter should only be used for direct Maps.
 void useCollectionClass(java.lang.Class concreteClass)
          PUBLIC: Configure the mapping to use an instance of the specified container class to hold the nested objects.
 void useMapClass(java.lang.Class concreteClass, java.lang.String methodName)
          PUBLIC: Mapping does not support Map containers.
 boolean usesSingleNode()
          PUBLIC: Checks whether the mapping uses a single node.
 java.lang.Object valueFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager, ObjectBuildingQuery sourceQuery, org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey, org.eclipse.persistence.internal.sessions.AbstractSession executionSession, boolean isTargetProtected)
          INTERNAL: Build the nested collection from the database row.
 void writeFromObjectIntoRow(java.lang.Object object, org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.sessions.AbstractSession session, DatabaseMapping.WriteType writeType)
          INTERNAL: Get the attribute value from the object and store it in the appropriate field of the row.
 void writeFromObjectIntoRowForUpdate(WriteObjectQuery writeQuery, org.eclipse.persistence.internal.sessions.AbstractRecord row)
          INTERNAL: If any part of the nested collection has changed, the whole thing is written.
 void writeFromObjectIntoRowWithChangeRecord(org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord, org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.sessions.AbstractSession session, DatabaseMapping.WriteType writeType)
          INTERNAL: Get the appropriate attribute value from the object and put it in the appropriate field of the database row.
 void writeInsertFieldsIntoRow(org.eclipse.persistence.internal.sessions.AbstractRecord row, org.eclipse.persistence.internal.sessions.AbstractSession session)
          INTERNAL: Write the fields needed for insert into the template with null values.
 
Methods inherited from class org.eclipse.persistence.mappings.DatabaseMapping
buildBackupCloneForPartObject, buildChangeRecord, buildCloneForPartObject, buildContainerClone, buildExpression, buildObjectJoinExpression, buildObjectJoinExpression, buildShallowOriginalFromRow, calculateDeferredChanges, cascadeDiscoverAndPersistUnregisteredNewObjects, cascadeMerge_, cascadePerformRemovePrivateOwnedObjectFromChangeSetIfRequired, clone, cloneFields, collectQueryParameters, createCloneValueHolder, derivesId, earlyPreDelete, extractNestedExpressions, fixRealObjectReferences, getAttributeAccessor, getAttributeClassification, getAttributeName, getAttributeValueFromObject, getDerivedIdMapping, getDescriptor, getFields, getGetMethodName, getMapsIdValue, getObjectCorrespondingTo, getProperties, getProperty, getRealAttributeValueFromAttribute, getRealAttributeValueFromObject, getReferenceDescriptor, getRelationshipPartner, getSelectFields, getSelectTables, getSetMethodName, getValueFromRemoteValueHolder, getWeight, hasConstraintDependency, hasDependency, hasInverseConstraintDependency, hasMapsIdValue, hasRootExpressionThatShouldUseOuterJoin, instantiateAttribute, isAbstractCompositeCollectionMapping, isAbstractCompositeObjectMapping, isAbstractDirectMapping, isAggregateCollectionMapping, isAggregateMapping, isAggregateObjectMapping, isCacheable, isCandidateForPrivateOwnedRemoval, isCascadedLockingSupported, isChangeTrackingSupported, isCloningRequired, isDatabaseMapping, isDirectCollectionMapping, isDirectMapMapping, isDirectToFieldMapping, isDirectToXMLTypeMapping, isEISMapping, isForeignReferenceMapping, isJoiningSupported, isJPAId, isLazy, isLockableMapping, isManyToManyMapping, isManyToOneMapping, isMapKeyMapping, isNestedTableMapping, isObjectReferenceMapping, isOneToManyMapping, isOneToOneMapping, isOptional, isOwned, isPrimaryKeyMapping, isPrivateOwned, isReadOnly, isReferenceMapping, isRelationalMapping, isRemotelyInitialized, isStructureMapping, isTransformationMapping, isUnidirectionalOneToManyMapping, isUsingMethodAccess, isVariableOneToOneMapping, isWriteOnly, isXMLMapping, iterateOnRealAttributeValue, performDataModificationEvent, postCalculateChanges, postCalculateChangesOnDeleted, postDelete, postInitialize, postInsert, postUpdate, preDelete, preInitialize, preInsert, prepareCascadeLockingPolicy, preUpdate, readFromResultSetIntoObject, readFromRowIntoObject, readOnly, readWrite, recordPrivateOwnedRemovals, rehashFieldDependancies, remoteInitialization, remotelyInitialized, replaceValueHoldersIn, setAttributeAccessor, setAttributeName, setAttributeValueInObject, setChangeListener, setDerivedIdMapping, setDerivesId, setDescriptor, setFields, setGetMethodName, setIsCacheable, setIsJPAId, setIsLazy, setIsMapKeyMapping, setIsOptional, setIsPrimaryKeyMapping, setIsReadOnly, setMapsIdValue, setProperties, setProperty, setRealAttributeValueInObject, setSetMethodName, setWeight, toString, updateChangeRecord, updateCollectionChangeRecord, validateAfterInitialization, validateBeforeInitialization, valueFromObject, valueFromResultSet, valueFromRow, verifyDelete, writeFromAttributeIntoRow, writeFromObjectIntoRowForShallowInsert, writeFromObjectIntoRowForShallowInsertWithChangeRecord, writeFromObjectIntoRowForWhereClause, writeUpdateFieldsIntoRow
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

field

protected org.eclipse.persistence.internal.helper.DatabaseField field
This is the field holding the nested collection.


elementDataTypeName

protected java.lang.String elementDataTypeName
This is the "data type" associated with each element in the nested collection. Depending on the data store, this could be optional.


valueConverter

protected Converter valueConverter
Allows user defined conversion between the object value and the database value.

Constructor Detail

AbstractCompositeDirectCollectionMapping

public AbstractCompositeDirectCollectionMapping()
Default constructor.

Method Detail

getValueConverter

public Converter getValueConverter()
PUBLIC: Return the converter on the mapping. A converter can be used to convert between the direct collection's object value and database value.


hasValueConverter

public boolean hasValueConverter()
PUBLIC: Indicates if there is a converter on the mapping.


setValueConverter

public void setValueConverter(Converter valueConverter)
PUBLIC: Set the converter on the mapping. A converter can be used to convert between the direct collection's object value and database value.


buildAddedElementFromChangeSet

public java.lang.Object buildAddedElementFromChangeSet(java.lang.Object changeSet,
                                                       org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                                                       org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
INTERNAL: Build and return a new element based on the change set.


buildBackupClone

public void buildBackupClone(java.lang.Object clone,
                             java.lang.Object backup,
                             org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork)
INTERNAL: Clone the attribute from the clone and assign it to the backup. For these mappings, this is the same as building the first clone.

Specified by:
buildBackupClone in class DatabaseMapping

buildChangeSet

public java.lang.Object buildChangeSet(java.lang.Object element,
                                       org.eclipse.persistence.internal.sessions.ObjectChangeSet owner,
                                       org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Build and return a change set for the specified element. Direct collections simply store the element itself, since it is immutable.


buildClone

public void buildClone(java.lang.Object original,
                       org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey,
                       java.lang.Object clone,
                       org.eclipse.persistence.internal.sessions.AbstractSession cloningSession)
INTERNAL: Clone the attribute from the original and assign it to the clone.

Specified by:
buildClone in class DatabaseMapping

buildCloneFromRow

public void buildCloneFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord row,
                              org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager,
                              java.lang.Object clone,
                              org.eclipse.persistence.internal.identitymaps.CacheKey sharedCacheKey,
                              ObjectBuildingQuery sourceQuery,
                              org.eclipse.persistence.internal.sessions.UnitOfWorkImpl unitOfWork,
                              org.eclipse.persistence.internal.sessions.AbstractSession executionSession)
INTERNAL: Extract value from the row and set the attribute to this value in the working copy clone. In order to bypass the shared cache when in transaction a UnitOfWork must be able to populate working copies directly from the row.

Specified by:
buildCloneFromRow in class DatabaseMapping

buildClonePart

protected java.lang.Object buildClonePart(java.lang.Object attributeValue,
                                          org.eclipse.persistence.internal.identitymaps.CacheKey parentCacheKey,
                                          org.eclipse.persistence.internal.sessions.AbstractSession cloningSession)
Build and return a clone of the specified attribute value.


buildCopy

public void buildCopy(java.lang.Object copy,
                      java.lang.Object original,
                      CopyGroup group)
INTERNAL: Copy of the attribute of the object. This is NOT used for unit of work but for templatizing an object.

Overrides:
buildCopy in class DatabaseMapping

buildElementFromChangeSet

protected java.lang.Object buildElementFromChangeSet(java.lang.Object changeSet,
                                                     org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                                                     org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
Build and return a new element based on the change set. Direct collections simply store the element itself, since it is immutable.


buildElementFromElement

public java.lang.Object buildElementFromElement(java.lang.Object object,
                                                org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                                                org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
INTERNAL: Build and return a new element based on the specified element. Direct collections simply return the element itself, since it is immutable.


buildRemovedElementFromChangeSet

public java.lang.Object buildRemovedElementFromChangeSet(java.lang.Object changeSet,
                                                         org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                                                         org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
INTERNAL: Build and return a new element based on the change set.


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

collectFields

protected java.util.Vector collectFields()
Return the fields handled by the mapping.

Overrides:
collectFields in class DatabaseMapping

compareElements

public boolean compareElements(java.lang.Object element1,
                               java.lang.Object element2,
                               org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Compare the non-null elements. Return true if they are alike. Use #equals() to determine if two elements are the same.


compareElementsForChange

public boolean compareElementsForChange(java.lang.Object element1,
                                        java.lang.Object element2,
                                        org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Compare the non-null elements and return true if they are alike.


compareForChange

public org.eclipse.persistence.internal.sessions.ChangeRecord compareForChange(java.lang.Object clone,
                                                                               java.lang.Object backup,
                                                                               org.eclipse.persistence.internal.sessions.ObjectChangeSet owner,
                                                                               org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Build and return the change record that results from comparing the two direct collection attributes.

Specified by:
compareForChange in class DatabaseMapping
Returns:
prototype.changeset.ChangeRecord

convertToChangeRecord

protected org.eclipse.persistence.internal.sessions.ChangeRecord convertToChangeRecord(java.lang.Object cloneCollection,
                                                                                       org.eclipse.persistence.internal.sessions.ObjectChangeSet owner,
                                                                                       org.eclipse.persistence.internal.sessions.AbstractSession session)

compareObjects

public boolean compareObjects(java.lang.Object object1,
                              java.lang.Object object2,
                              org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Compare the attributes belonging to this mapping for the objects.

Specified by:
compareObjects in class DatabaseMapping

fixObjectReferences

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

getAttributeElementClass

public java.lang.Class getAttributeElementClass()
PUBLIC: Return the class each element in the object's collection should be converted to, before the collection is inserted into the object. This is optional - if left null, the elements will be added to the object's collection unconverted.


getContainerPolicy

public org.eclipse.persistence.internal.queries.ContainerPolicy getContainerPolicy()
INTERNAL: Return the mapping's containerPolicy.

Specified by:
getContainerPolicy in interface ContainerMapping
Overrides:
getContainerPolicy in class DatabaseMapping

getField

public org.eclipse.persistence.internal.helper.DatabaseField getField()
INTERNAL: Return the field that holds the nested collection.

Overrides:
getField in class DatabaseMapping

isAbstractCompositeDirectCollectionMapping

public boolean isAbstractCompositeDirectCollectionMapping()
INTERNAL:

Overrides:
isAbstractCompositeDirectCollectionMapping in class DatabaseMapping

getFieldElementClass

public java.lang.Class getFieldElementClass()
PUBLIC: Return the class each element in the database row's collection should be converted to, before the collection is inserted into the database. This is optional - if left null, the elements will be added to the database row's collection unconverted.


getFieldName

public java.lang.String getFieldName()
PUBLIC: Return the name of the field that holds the nested collection.


getRealCollectionAttributeValueFromObject

public java.lang.Object getRealCollectionAttributeValueFromObject(java.lang.Object object,
                                                                  org.eclipse.persistence.internal.sessions.AbstractSession session)
                                                           throws DescriptorException
INTERNAL: Convenience method. Return the value of an attribute, unwrapping value holders if necessary. If the value is null, build a new container.

Overrides:
getRealCollectionAttributeValueFromObject in class DatabaseMapping
Throws:
DescriptorException

initialize

public void initialize(org.eclipse.persistence.internal.sessions.AbstractSession session)
                throws DescriptorException
INTERNAL: Initialize the mapping.

Overrides:
initialize in class DatabaseMapping
Throws:
DescriptorException

iterate

public void iterate(org.eclipse.persistence.internal.descriptors.DescriptorIterator iterator)
INTERNAL: Iterate on the appropriate attribute value.

Specified by:
iterate in class DatabaseMapping

mapKeyHasChanged

public boolean mapKeyHasChanged(java.lang.Object element,
                                org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Return whether the element's user-defined Map key has changed since it was cloned from the original version. Direct elements are not allowed to have keys.


mergeChangesIntoObject

public void mergeChangesIntoObject(java.lang.Object target,
                                   org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord,
                                   java.lang.Object source,
                                   org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                                   org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
INTERNAL: Merge changes from the source to the target object. Treat the collection as a simple direct value, since minimal update isn't possible.

Specified by:
mergeChangesIntoObject in class DatabaseMapping

mergeIntoObject

public void mergeIntoObject(java.lang.Object target,
                            boolean isTargetUnInitialized,
                            java.lang.Object source,
                            org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
                            org.eclipse.persistence.internal.sessions.AbstractSession targetSession)
INTERNAL: Merge changes from the source to the target object. This merge is only called when a changeSet for the target does not exist or the target is uninitialized. Treat the collection as a simple direct value.

Specified by:
mergeIntoObject in class DatabaseMapping

setAttributeElementClass

public void setAttributeElementClass(java.lang.Class attributeElementClass)
PUBLIC: Set the class each element in the object's collection should be converted to, before the collection is inserted into the object. This is optional - if left null, the elements will be added to the object's collection unconverted.


setContainerPolicy

public void setContainerPolicy(org.eclipse.persistence.internal.queries.ContainerPolicy containerPolicy)
ADVANCED: Set the mapping's containerPolicy.

Specified by:
setContainerPolicy in interface ContainerMapping

setField

public void setField(org.eclipse.persistence.internal.helper.DatabaseField field)
Set the field that holds the nested collection.


setFieldElementClass

public void setFieldElementClass(java.lang.Class fieldElementClass)
PUBLIC: Set the class each element in the database row's collection should be converted to, before the collection is inserted into the database. This is optional - if left null, the elements will be added to the database row's collection unconverted.


simpleAddToCollectionChangeRecord

public void simpleAddToCollectionChangeRecord(java.lang.Object referenceKey,
                                              java.lang.Object changeSetToAdd,
                                              org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet,
                                              org.eclipse.persistence.internal.sessions.AbstractSession session)
ADVANCED: This method is used to have an object add to a collection once the changeSet is applied The referenceKey parameter should only be used for direct Maps.

Overrides:
simpleAddToCollectionChangeRecord in class DatabaseMapping

simpleRemoveFromCollectionChangeRecord

public void simpleRemoveFromCollectionChangeRecord(java.lang.Object referenceKey,
                                                   java.lang.Object changeSetToRemove,
                                                   org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet,
                                                   org.eclipse.persistence.internal.sessions.AbstractSession session)
ADVANCED: This method is used to have an object removed from a collection once the changeSet is applied The referenceKey parameter should only be used for direct Maps.

Overrides:
simpleRemoveFromCollectionChangeRecord in class DatabaseMapping

useCollectionClass

public void useCollectionClass(java.lang.Class concreteClass)
PUBLIC: Configure the mapping to use an instance of the specified container class to hold the nested objects.

jdk1.2.x: The container class must implement (directly or indirectly) the Collection interface.

jdk1.1.x: The container class must be a subclass of Vector.

Specified by:
useCollectionClass in interface ContainerMapping

useMapClass

public void useMapClass(java.lang.Class concreteClass,
                        java.lang.String methodName)
PUBLIC: Mapping does not support Map containers. It supports only Collection containers.

Specified by:
useMapClass in interface ContainerMapping

setUsesSingleNode

public void setUsesSingleNode(boolean usesSingleNode)
PUBLIC: Sets whether the mapping uses a single node.

Parameters:
True - if the items in the collection are in a single node or false if each of the items in the collection is in its own node

usesSingleNode

public boolean usesSingleNode()
PUBLIC: Checks whether the mapping uses a single node.


valueFromRow

public java.lang.Object valueFromRow(org.eclipse.persistence.internal.sessions.AbstractRecord row,
                                     org.eclipse.persistence.internal.queries.JoinedAttributeManager joinManager,
                                     ObjectBuildingQuery sourceQuery,
                                     org.eclipse.persistence.internal.identitymaps.CacheKey cacheKey,
                                     org.eclipse.persistence.internal.sessions.AbstractSession executionSession,
                                     boolean isTargetProtected)
                              throws DatabaseException
INTERNAL: Build the nested collection from the database row.

Overrides:
valueFromRow in class DatabaseMapping
Throws:
DatabaseException

writeFromObjectIntoRow

public void writeFromObjectIntoRow(java.lang.Object object,
                                   org.eclipse.persistence.internal.sessions.AbstractRecord row,
                                   org.eclipse.persistence.internal.sessions.AbstractSession session,
                                   DatabaseMapping.WriteType writeType)
INTERNAL: Get the attribute value from the object and store it in the appropriate field of the row.

Overrides:
writeFromObjectIntoRow in class DatabaseMapping

writeFromObjectIntoRowForUpdate

public void writeFromObjectIntoRowForUpdate(WriteObjectQuery writeQuery,
                                            org.eclipse.persistence.internal.sessions.AbstractRecord row)
                                     throws DescriptorException
INTERNAL: If any part of the nested collection has changed, the whole thing is written.

Overrides:
writeFromObjectIntoRowForUpdate in class DatabaseMapping
Throws:
DescriptorException

writeFromObjectIntoRowWithChangeRecord

public void writeFromObjectIntoRowWithChangeRecord(org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord,
                                                   org.eclipse.persistence.internal.sessions.AbstractRecord row,
                                                   org.eclipse.persistence.internal.sessions.AbstractSession session,
                                                   DatabaseMapping.WriteType writeType)
INTERNAL: Get the appropriate attribute value from the object and put it in the appropriate field of the database row. Loop through the reference objects and extract the primary keys and put them in the vector of "nested" rows.

Overrides:
writeFromObjectIntoRowWithChangeRecord in class DatabaseMapping

writeInsertFieldsIntoRow

public void writeInsertFieldsIntoRow(org.eclipse.persistence.internal.sessions.AbstractRecord row,
                                     org.eclipse.persistence.internal.sessions.AbstractSession session)
INTERNAL: Write the fields needed for insert into the template with null values.

Overrides:
writeInsertFieldsIntoRow in class DatabaseMapping

getFieldClassification

public java.lang.Class getFieldClassification(org.eclipse.persistence.internal.helper.DatabaseField fieldToClassify)
INTERNAL: Return the classifiction for the field contained in the mapping. This is used to convert the row value to a consistent java value. By default this is unknown.

Overrides:
getFieldClassification in class DatabaseMapping

isCollectionMapping

public boolean isCollectionMapping()
Description copied from class: DatabaseMapping
INTERNAL: Related mapping should implement this method to return true.

Overrides:
isCollectionMapping in class DatabaseMapping

convertClassNamesToClasses

public void convertClassNamesToClasses(java.lang.ClassLoader classLoader)
Description copied from class: DatabaseMapping
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

EclipseLink 2.2.0, build 'v20110202-r8913' API Reference