Package org.apache.jackrabbit.oak.plugins.document

Class NodeDocumentRevisionCleaner

java.lang.Object

org.apache.jackrabbit.oak.plugins.document.NodeDocumentRevisionCleaner

public class NodeDocumentRevisionCleaner
extends Object

This is a prototype class of a very fine-grained revision cleaner that cleans even revisions in-between checkpoints. It is not clear if it will be used for now. A version is considered to be cleanable if it is not referenced by any checkpoint and is older than a certain threshold.

Constructor Summary

Constructors

Constructor	Description
NodeDocumentRevisionCleaner(DocumentNodeStore documentNodeStore, NodeDocument workingDocument)	Constructor for NodeDocumentRevisionCleaner.
NodeDocumentRevisionCleaner(DocumentNodeStore documentNodeStore, NodeDocument workingDocument, long toModifiedMs)	Constructor for NodeDocumentRevisionCleaner.

Method Summary

Modifier and Type	Method	Description
protected void	classifyRevisionsAndProperties()
void	collectOldRevisions(UpdateOp op)	Collects cleanable old revisions for the given document.
SortedMap<Integer,TreeSet<Revision>>	getBlockedRevisionsToKeep()
SortedMap<Integer,TreeSet<Revision>>	getCandidateRevisionsToClean()
protected SortedMap<Revision,TreeSet<String>>	getPropertiesModifiedByRevision()
protected SortedMap<String,TreeSet<Revision>>	getRevisionsModifyingProperty()
protected SortedMap<String,SortedMap<Integer,TreeSet<Revision>>>	getRevisionsModifyingPropertyByCluster()
protected void	markCheckpointRevisionsToPreserve()
protected void	markLastRevisionForEachProperty()
protected void	markRevisionsNewerThanThresholdToPreserve(long amount, ChronoUnit unit)
protected void	removeCandidatesInList()

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeDocumentRevisionCleaner

public NodeDocumentRevisionCleaner(DocumentNodeStore documentNodeStore,
                                   NodeDocument workingDocument)

Constructor for NodeDocumentRevisionCleaner.

Parameters:

documentNodeStore - The DocumentNodeStore instance.

workingDocument - The document to clean up.

NodeDocumentRevisionCleaner

public NodeDocumentRevisionCleaner(DocumentNodeStore documentNodeStore,
                                   NodeDocument workingDocument,
                                   long toModifiedMs)

Constructor for NodeDocumentRevisionCleaner.

Parameters:

documentNodeStore - The DocumentNodeStore instance.

workingDocument - The document to clean up.

Method Detail

collectOldRevisions

public void collectOldRevisions(UpdateOp op)

Collects cleanable old revisions for the given document.

getRevisionsModifyingPropertyByCluster

protected SortedMap<String,SortedMap<Integer,TreeSet<Revision>>> getRevisionsModifyingPropertyByCluster()

getRevisionsModifyingProperty

protected SortedMap<String,TreeSet<Revision>> getRevisionsModifyingProperty()

getPropertiesModifiedByRevision

protected SortedMap<Revision,TreeSet<String>> getPropertiesModifiedByRevision()

getBlockedRevisionsToKeep

public SortedMap<Integer,TreeSet<Revision>> getBlockedRevisionsToKeep()

getCandidateRevisionsToClean

public SortedMap<Integer,TreeSet<Revision>> getCandidateRevisionsToClean()

classifyRevisionsAndProperties

protected void classifyRevisionsAndProperties()

markLastRevisionForEachProperty

protected void markLastRevisionForEachProperty()

markRevisionsNewerThanThresholdToPreserve

protected void markRevisionsNewerThanThresholdToPreserve(long amount,
                                                         ChronoUnit unit)

markCheckpointRevisionsToPreserve

protected void markCheckpointRevisionsToPreserve()

removeCandidatesInList

protected void removeCandidatesInList()