Package org.eclipse.persistence.oxm.mappings

Class XMLFragmentCollectionMapping

java.lang.Object

org.eclipse.persistence.core.mappings.CoreMapping<AttributeAccessor,AbstractSession,ContainerPolicy,ClassDescriptor,DatabaseField>

org.eclipse.persistence.mappings.DatabaseMapping

org.eclipse.persistence.mappings.foundation.AbstractCompositeDirectCollectionMapping

org.eclipse.persistence.oxm.mappings.XMLFragmentCollectionMapping

All Implemented Interfaces:

Serializable, Cloneable, FragmentCollectionMapping<AbstractSession,AttributeAccessor,ContainerPolicy,ClassDescriptor,DatabaseField,Session,XMLRecord>, Mapping<AbstractSession,AttributeAccessor,ContainerPolicy,ClassDescriptor,DatabaseField,XMLRecord>, XMLContainerMapping, ContainerMapping, ArrayCollectionMapping, XMLMapping

public class XMLFragmentCollectionMapping
extends AbstractCompositeDirectCollectionMapping
implements FragmentCollectionMapping<AbstractSession,AttributeAccessor,ContainerPolicy,ClassDescriptor,DatabaseField,Session,XMLRecord>, XMLMapping

Purpose: This mapping provides a means to keep a part of the xml tree as a collection of DOM elements.

Setting the XPath: TopLink XML mappings make use of XPath statements to find the relevant data in an XML document. The XPath statement is relative to the context node specified in the descriptor. The XPath may contain path and positional information; the last node in the XPath forms the local root node for the fragment. The XPath is specified on the mapping using the setXPath method.

XPath statements

XPath	Description
phone-number	The phone-number information is stored in the phone-number element.
contact-info/phone-number	The XPath statement may be used to specify any valid path.

Sample Configuration:

 XMLFragmentCollectionMapping mapping = new XMLFragmentCollectionMapping();
 mapping.setAttributeName("phoneNumbers");
 mapping.setXPath("contact-info/phone-number");
 
 

See Also:

Serialized Form

Nested Class Summary

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

DatabaseMapping.WriteType

Field Summary

Fields inherited from class org.eclipse.persistence.mappings.foundation.AbstractCompositeDirectCollectionMapping

elementDataTypeName, field, valueConverter

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

attributeAccessor, attributeName, derivedIdMapping, derivesId, descriptor, fields, isCacheable, isInSopObject, isJPAId, isLazy, isMapKeyMapping, isOptional, isPrimaryKeyMapping, isReadOnly, isRemotelyInitialized, mapsIdValue, NO_FIELDS, NO_WEIGHT, properties, unconvertedProperties, weight, WEIGHT_AGGREGATE, WEIGHT_DIRECT, WEIGHT_TO_ONE, WEIGHT_TRANSFORM

Fields inherited from interface org.eclipse.persistence.internal.oxm.mappings.XMLContainerMapping

EMPTY_CONTAINER_DEFAULT

Constructor Summary

Constructors

Constructor	Description
XMLFragmentCollectionMapping()

Method Summary

Modifier and Type	Method	Description
boolean	getReuseContainer()	Return true if the original container on the object should be used if present.
AbstractNullPolicy	getWrapperNullPolicy()	Get the Wrapper NullPolicy from the Mapping.
String	getXPath()	Get the XPath String
void	initialize(AbstractSession session)	INTERNAL: Initialize the mapping.
boolean	isAbstractCompositeDirectCollectionMapping()	INTERNAL:
boolean	isDefaultEmptyContainer()	INTERNAL Return true if an empty container should be set on the object if there is no presence of the collection in the XML document.
boolean	isWriteOnly()	INTERNAL: Some mappings support no attribute (transformation and multitenant primary key).
boolean	isXMLMapping()	INTERNAL:
void	preInitialize(AbstractSession session)	INTERNAL: Allow for initialization of properties and validation.
void	setAttributeValueInObject(Object object, Object value)	INTERNAL: Set the value of the attribute mapped by this mapping.
void	setDefaultEmptyContainer(boolean defaultEmptyContainer)	INTERNAL Indicate whether by default an empty container should be set on the field/property if the collection is not present in the XML document.
void	setIsWriteOnly(boolean b)
void	setReuseContainer(boolean reuseContainer)	Specify whether the original container on the object should be used if present.
void	setWrapperNullPolicy(AbstractNullPolicy policy)	Set the Wrapper NullPolicy on the Mapping.
void	setXPath(String xpathString)	Set the Mapping field name attribute to the given XPath String
Object	valueFromRow(AbstractRecord row, JoinedAttributeManager joinManager, ObjectBuildingQuery sourceQuery, CacheKey cacheKey, AbstractSession executionSession, boolean isTargetProtected, Boolean[] wasCacheUsed)	INTERNAL: Build the nested collection from the database row.
void	writeFromObjectIntoRow(Object object, AbstractRecord row, AbstractSession session, DatabaseMapping.WriteType writeType)	INTERNAL:
void	writeSingleValue(Object attributeValue, Object parent, XMLRecord row, AbstractSession session)	INTERNAL: A method that marshals a single value to the provided Record based on this mapping's XPath.

Methods inherited from class org.eclipse.persistence.mappings.foundation.AbstractCompositeDirectCollectionMapping

buildAddedElementFromChangeSet, buildBackupClone, buildChangeSet, buildClone, buildCloneFromRow, buildClonePart, buildCopy, buildElementFromChangeSet, buildElementFromElement, buildRemovedElementFromChangeSet, cascadePerformRemoveIfRequired, cascadeRegisterNewIfRequired, collectFields, compareElements, compareElementsForChange, compareForChange, compareObjects, convertClassNamesToClasses, convertToChangeRecord, createMapComponentFromRow, fixObjectReferences, getAttributeElementClass, getContainerPolicy, getField, getFieldClassification, getFieldElementClass, getFieldName, getRealCollectionAttributeValueFromObject, getValueConverter, hasValueConverter, isCollectionMapping, iterate, mapKeyHasChanged, mergeChangesIntoObject, mergeIntoObject, setAttributeElementClass, setAttributeElementClassName, setContainerPolicy, setField, setFieldElementClass, setUsesSingleNode, setValueConverter, simpleAddToCollectionChangeRecord, simpleRemoveFromCollectionChangeRecord, useCollectionClass, useCollectionClassName, useListClassName, useMapClass, useMapClassName, usesSingleNode, writeFromObjectIntoRowForUpdate, writeFromObjectIntoRowWithChangeRecord, writeInsertFieldsIntoRow

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

addUnconvertedProperty, buildBackupCloneForPartObject, buildChangeRecord, buildCloneForPartObject, buildContainerClone, buildExpression, buildObjectJoinExpression, buildObjectJoinExpression, buildShallowOriginalFromRow, calculateDeferredChanges, cascadeDiscoverAndPersistUnregisteredNewObjects, cascadePerformRemovePrivateOwnedObjectFromChangeSetIfRequired, clone, cloneFields, collectQueryParameters, convertConverterClassNamesToClasses, createCloneValueHolder, derivesId, earlyPreDelete, extractNestedExpressions, extractNestedNonAggregateExpressions, fixRealObjectReferences, getAttributeAccessor, getAttributeClassification, getAttributeName, getAttributeValueFromObject, getDerivedIdMapping, getDescriptor, getFields, getGetMethodName, getMapsIdValue, getObjectCorrespondingTo, getOrderByNormalizedExpressions, getProperties, getProperty, getRealAttributeValueFromAttribute, getRealAttributeValueFromObject, getReferenceDescriptor, getRelationshipPartner, getSelectFields, getSelectTables, getSetMethodName, getUnconvertedProperties, getValueFromRemoteValueHolder, getWeight, hasConstraintDependency, hasDependency, hasInverseConstraintDependency, hasMapsIdValue, hasNestedIdentityReference, hasRootExpressionThatShouldUseOuterJoin, hasUnconvertedProperties, instantiateAttribute, isAbstractColumnMapping, isAbstractCompositeCollectionMapping, isAbstractCompositeObjectMapping, isAbstractDirectMapping, isAggregateCollectionMapping, isAggregateMapping, isAggregateObjectMapping, isAttributeValueFromObjectInstantiated, isCacheable, isCandidateForPrivateOwnedRemoval, isCascadedLockingSupported, isChangeTrackingSupported, isCloningRequired, 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, isRemotelyInitialized, isStructureMapping, isTransformationMapping, isUnidirectionalOneToManyMapping, isUsingMethodAccess, isVariableOneToOneMapping, iterateOnRealAttributeValue, load, loadAll, performDataModificationEvent, postCalculateChanges, postCalculateChangesOnDeleted, postDelete, postInitialize, postInitializeSourceAndTargetExpressions, postInsert, postUpdate, preDelete, preInsert, prepareCascadeLockingPolicy, preUpdate, readFromResultSetIntoObject, readFromRowIntoObject, readOnly, readWrite, recordPrivateOwnedRemovals, rehashFieldDependancies, remoteInitialization, remotelyInitialized, replaceValueHoldersIn, setAttributeAccessor, setAttributeName, setChangeListener, setDerivedIdMapping, setDerivesId, setDescriptor, setFields, setGetMethodName, setIsCacheable, setIsInAndOutSopObject, setIsInSopObject, setIsJPAId, setIsLazy, setIsMapKeyMapping, setIsOptional, setIsOutSopObject, setIsPrimaryKeyMapping, setIsReadOnly, setMapsIdValue, setProperties, setProperty, setRealAttributeValueInObject, setSetMethodName, setWeight, toString, updateChangeRecord, updateCollectionChangeRecord, validateAfterInitialization, validateBeforeInitialization, valueFromObject, valueFromResultSet, valueFromRow, verifyDelete, writeFromAttributeIntoRow, writeFromObjectIntoRowForShallowInsert, writeFromObjectIntoRowForShallowInsertWithChangeRecord, writeFromObjectIntoRowForUpdateAfterShallowInsert, writeFromObjectIntoRowForUpdateBeforeShallowDelete, writeFromObjectIntoRowForWhereClause, writeUpdateFieldsIntoRow

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.mappings.structures.ArrayCollectionMapping

getAttributeName, setRealAttributeValueInObject

Methods inherited from interface org.eclipse.persistence.internal.oxm.mappings.Mapping

getAttributeAccessor, getAttributeClassification, getAttributeName, getAttributeValueFromObject, getContainerPolicy, getDescriptor, getField, getReferenceDescriptor, isAbstractCompositeCollectionMapping, isAbstractCompositeObjectMapping, isAbstractDirectMapping, isCollectionMapping, isReadOnly, isReferenceMapping, isTransformationMapping, setAttributeAccessor, setAttributeName, setGetMethodName, setIsReadOnly, setProperties, setSetMethodName

Methods inherited from interface org.eclipse.persistence.oxm.mappings.XMLMapping

convertClassNamesToClasses

Constructor Detail

XMLFragmentCollectionMapping

public XMLFragmentCollectionMapping()

Method Detail

isXMLMapping

public boolean isXMLMapping()

INTERNAL:

Overrides:

isXMLMapping in class DatabaseMapping

initialize

public void initialize(AbstractSession session)
                throws DescriptorException

INTERNAL: Initialize the mapping.

Overrides:

initialize in class AbstractCompositeDirectCollectionMapping

Throws:

DescriptorException

setXPath

public void setXPath(String xpathString)

Set the Mapping field name attribute to the given XPath String

Parameters:

xpathString - String

getXPath

public String getXPath()

Get the XPath String

Returns:

String the XPath String associated with this Mapping

valueFromRow

public Object valueFromRow(AbstractRecord row,
                           JoinedAttributeManager joinManager,
                           ObjectBuildingQuery sourceQuery,
                           CacheKey cacheKey,
                           AbstractSession executionSession,
                           boolean isTargetProtected,
                           Boolean[] wasCacheUsed)
                    throws DatabaseException

INTERNAL: Build the nested collection from the database row.

Overrides:

valueFromRow in class AbstractCompositeDirectCollectionMapping

Throws:

DatabaseException

writeFromObjectIntoRow

public void writeFromObjectIntoRow(Object object,
                                   AbstractRecord row,
                                   AbstractSession session,
                                   DatabaseMapping.WriteType writeType)

INTERNAL:

Overrides:

writeFromObjectIntoRow in class AbstractCompositeDirectCollectionMapping

isAbstractCompositeDirectCollectionMapping

public boolean isAbstractCompositeDirectCollectionMapping()

Description copied from class: AbstractCompositeDirectCollectionMapping

INTERNAL:

Specified by:

isAbstractCompositeDirectCollectionMapping in interface Mapping<AbstractSession,AttributeAccessor,ContainerPolicy,ClassDescriptor,DatabaseField,XMLRecord>

Overrides:

isAbstractCompositeDirectCollectionMapping in class AbstractCompositeDirectCollectionMapping

writeSingleValue

public void writeSingleValue(Object attributeValue,
                             Object parent,
                             XMLRecord row,
                             AbstractSession session)

Description copied from interface: XMLMapping

INTERNAL: A method that marshals a single value to the provided Record based on this mapping's XPath. Used for Sequenced marshalling.

Specified by:

writeSingleValue in interface Mapping<AbstractSession,AttributeAccessor,ContainerPolicy,ClassDescriptor,DatabaseField,XMLRecord>

Specified by:

writeSingleValue in interface XMLMapping

Parameters:

attributeValue - - The value to be marshalled

row - - The Record the value is being marshalled too.

isWriteOnly

public boolean isWriteOnly()

Description copied from class: DatabaseMapping

INTERNAL: Some mappings support no attribute (transformation and multitenant primary key).

Specified by:

isWriteOnly in interface XMLMapping

Overrides:

isWriteOnly in class DatabaseMapping

setIsWriteOnly

public void setIsWriteOnly(boolean b)

Specified by:

setIsWriteOnly in interface XMLMapping

preInitialize

public void preInitialize(AbstractSession session)
                   throws DescriptorException

Description copied from class: DatabaseMapping

INTERNAL: Allow for initialization of properties and validation.

Overrides:

preInitialize in class DatabaseMapping

Throws:

DescriptorException

setAttributeValueInObject

public void setAttributeValueInObject(Object object,
                                      Object value)
                               throws DescriptorException

Description copied from class: DatabaseMapping

INTERNAL: Set the value of the attribute mapped by this mapping.

Specified by:

setAttributeValueInObject in interface Mapping<AbstractSession,AttributeAccessor,ContainerPolicy,ClassDescriptor,DatabaseField,XMLRecord>

Overrides:

setAttributeValueInObject in class DatabaseMapping

Throws:

DescriptorException

getReuseContainer

public boolean getReuseContainer()

Return true if the original container on the object should be used if present. If it is not present then the container policy will be used to create the container.

Specified by:

getReuseContainer in interface XMLContainerMapping

setReuseContainer

public void setReuseContainer(boolean reuseContainer)

Specify whether the original container on the object should be used if present. If it is not present then the container policy will be used to create the container.

Specified by:

setReuseContainer in interface XMLContainerMapping

isDefaultEmptyContainer

public boolean isDefaultEmptyContainer()

INTERNAL Return true if an empty container should be set on the object if there is no presence of the collection in the XML document.

Specified by:

isDefaultEmptyContainer in interface XMLContainerMapping

Since:

EclipseLink 2.3.3

setDefaultEmptyContainer

public void setDefaultEmptyContainer(boolean defaultEmptyContainer)

INTERNAL Indicate whether by default an empty container should be set on the field/property if the collection is not present in the XML document.

Specified by:

setDefaultEmptyContainer in interface XMLContainerMapping

Since:

EclipseLink 2.3.3

getWrapperNullPolicy

public AbstractNullPolicy getWrapperNullPolicy()

Description copied from interface: XMLContainerMapping

Get the Wrapper NullPolicy from the Mapping.

Specified by:

getWrapperNullPolicy in interface XMLContainerMapping

setWrapperNullPolicy

public void setWrapperNullPolicy(AbstractNullPolicy policy)

Description copied from interface: XMLContainerMapping

Set the Wrapper NullPolicy on the Mapping.

Specified by:

setWrapperNullPolicy in interface XMLContainerMapping