org.apache.jackrabbit.core.util

Class ReferenceChangeTracker

java.lang.Object

org.apache.jackrabbit.core.util.ReferenceChangeTracker

public class ReferenceChangeTracker
extends Object

Simple helper class that can be used to keep track of node id mappings (e.g. if the id of an imported or copied node is mapped to a new id) and processed (e.g. imported or copied) reference properties that might need correcting depending on the id mappings.

Constructor Summary

Constructors

Constructor and Description
ReferenceChangeTracker()

Method Summary

Modifier and Type	Method and Description
void	clear() Resets all internal state.
NodeId	getMappedId(NodeId oldId) Returns the new node id to which oldId has been mapped or null if no such mapping exists.
Iterator<Object>	getProcessedReferences() Returns an iterator over all processed reference properties.
void	mappedId(NodeId oldId, NodeId newId) Store the given id mapping for later lookup using getMappedId(NodeId).
void	processedReference(Object refProp) Store the given reference property for later retrieval using getProcessedReferences().
boolean	removeReferences(List<Object> processedReferences) Remove the given references that have already been processed from the references list.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReferenceChangeTracker

public ReferenceChangeTracker()

Method Detail

clear

public void clear()

Resets all internal state.

mappedId

public void mappedId(NodeId oldId,
                     NodeId newId)

Store the given id mapping for later lookup using getMappedId(NodeId).

Parameters:

oldId - old node id

newId - new node id

processedReference

public void processedReference(Object refProp)

Store the given reference property for later retrieval using getProcessedReferences().

Parameters:

refProp - reference property

getMappedId

public NodeId getMappedId(NodeId oldId)

Returns the new node id to which oldId has been mapped or null if no such mapping exists.

Parameters:

oldId - old node id

Returns:

mapped new id or null if no such mapping exists

See Also:

mappedId(NodeId, NodeId)

getProcessedReferences

public Iterator<Object> getProcessedReferences()

Returns an iterator over all processed reference properties.

Returns:

an iterator over all processed reference properties

See Also:

processedReference(Object)

removeReferences

public boolean removeReferences(List<Object> processedReferences)

Remove the given references that have already been processed from the references list.

Parameters:

processedReferences -

Returns:

true if the internal list of references changed.