Package org.eclipse.persistence.internal.oxm.documentpreservation

Class DescriptorLevelDocumentPreservationPolicy

java.lang.Object

org.eclipse.persistence.oxm.documentpreservation.DocumentPreservationPolicy

org.eclipse.persistence.internal.oxm.documentpreservation.DescriptorLevelDocumentPreservationPolicy

public class DescriptorLevelDocumentPreservationPolicy
extends DocumentPreservationPolicy

INTERNAL:

Purpose:Provide an implementation of DocumentPreservation Policy that accesses the session cache to store Objects and their associated nodes.

Responsibilities:

• Add new objects and their associated nodes into the Session cache, wrapping them in a weak reference.
• Lookup the node for a given Object

Since:

TopLink 11g

Author:

mmacivor

Field Summary

Fields

Modifier and Type	Field	Description
protected Map	nodesToObjects
protected Map	objectsToNodes

Constructor Summary

Constructors

Constructor	Description
DescriptorLevelDocumentPreservationPolicy()

Method Summary

Modifier and Type	Method	Description
void	addObjectToCache(Object obj, Node node)
void	addObjectToCache(Object obj, Node node, Mapping selfRecordMapping)
Node	getNodeForObject(Object obj)
Object	getObjectForNode(Node node)
Object	getObjectForNode(Node node, Mapping selfRecordMapping)
boolean	shouldPreserveDocument()

Methods inherited from class org.eclipse.persistence.oxm.documentpreservation.DocumentPreservationPolicy

getNodeOrderingPolicy, initialize, setNodeOrderingPolicy

Methods inherited from class java.lang.Object

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

Field Detail

nodesToObjects

protected Map nodesToObjects

objectsToNodes

protected Map objectsToNodes

Constructor Detail

DescriptorLevelDocumentPreservationPolicy

public DescriptorLevelDocumentPreservationPolicy()

Method Detail

addObjectToCache

public void addObjectToCache(Object obj,
                             Node node)

Specified by:

addObjectToCache in class DocumentPreservationPolicy

addObjectToCache

public void addObjectToCache(Object obj,
                             Node node,
                             Mapping selfRecordMapping)

Specified by:

addObjectToCache in class DocumentPreservationPolicy

getNodeForObject

public Node getNodeForObject(Object obj)

Specified by:

getNodeForObject in class DocumentPreservationPolicy

getObjectForNode

public Object getObjectForNode(Node node)

Specified by:

getObjectForNode in class DocumentPreservationPolicy

getObjectForNode

public Object getObjectForNode(Node node,
                               Mapping selfRecordMapping)

Specified by:

getObjectForNode in class DocumentPreservationPolicy

shouldPreserveDocument

public boolean shouldPreserveDocument()

Specified by:

shouldPreserveDocument in class DocumentPreservationPolicy