org.neo4j.kernel.impl.util
Class RelIdArrayWithLoops

java.lang.Object
  org.neo4j.kernel.impl.util.RelIdArray
      org.neo4j.kernel.impl.util.RelIdArrayWithLoops

public class RelIdArrayWithLoops
extends RelIdArray

Nested Class Summary

Nested classes/interfaces inherited from class org.neo4j.kernel.impl.util.RelIdArray

RelIdArray.DirectionWrapper, RelIdArray.EmptyRelIdArray, RelIdArray.IdBlock, RelIdArray.RelIdIteratorImpl

Field Summary

Fields inherited from class org.neo4j.kernel.impl.util.RelIdArray

EMPTY, EMPTY_BLOCK

Constructor Summary

protected	RelIdArrayWithLoops(RelIdArray from)
	RelIdArrayWithLoops(String type)
protected	RelIdArrayWithLoops(String type, RelIdArray.IdBlock out, RelIdArray.IdBlock in, RelIdArray.IdBlock loop)

Method Summary

RelIdArray	addAll(RelIdArray source)
boolean	couldBeNeedingUpdate() Optimization in the lazy loading of relationships for a node.
RelIdArray	downgradeIfPossible()
protected RelIdArray.IdBlock	getLastLoopBlock()
RelIdArray	newSimilarInstance()
protected void	setLastLoopBlock(RelIdArray.IdBlock block)
RelIdArray	shrink()
RelIdArray	upgradeIfNeeded(RelIdArray capabilitiesToMatch)

Methods inherited from class org.neo4j.kernel.impl.util.RelIdArray

add, append, empty, from, getType, isEmpty, iterator, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

RelIdArrayWithLoops

public RelIdArrayWithLoops(String type)

RelIdArrayWithLoops

protected RelIdArrayWithLoops(RelIdArray from)

RelIdArrayWithLoops

protected RelIdArrayWithLoops(String type,
                              RelIdArray.IdBlock out,
                              RelIdArray.IdBlock in,
                              RelIdArray.IdBlock loop)

Method Detail

getLastLoopBlock

protected RelIdArray.IdBlock getLastLoopBlock()

Overrides:

getLastLoopBlock in class RelIdArray

setLastLoopBlock

protected void setLastLoopBlock(RelIdArray.IdBlock block)

Overrides:

setLastLoopBlock in class RelIdArray

upgradeIfNeeded

public RelIdArray upgradeIfNeeded(RelIdArray capabilitiesToMatch)

Overrides:

upgradeIfNeeded in class RelIdArray

downgradeIfPossible

public RelIdArray downgradeIfPossible()

Overrides:

downgradeIfPossible in class RelIdArray

addAll

public RelIdArray addAll(RelIdArray source)

Overrides:

addAll in class RelIdArray

newSimilarInstance

public RelIdArray newSimilarInstance()

Overrides:

newSimilarInstance in class RelIdArray

couldBeNeedingUpdate

public boolean couldBeNeedingUpdate()

Description copied from class: RelIdArray

Optimization in the lazy loading of relationships for a node. RelIdIterator.updateSource(RelIdArray) is only called if this returns true, i.e if a RelIdArray.EmptyRelIdArray or RelIdArray.IdBlock might have gotten upgraded to handle f.ex loops or high id ranges so that the RelIdIterator gets updated accordingly.

Overrides:

couldBeNeedingUpdate in class RelIdArray

shrink

public RelIdArray shrink()

Overrides:

shrink in class RelIdArray