private void VisitLabels(long nodeId, System.Action <long> visitor)
{
// This transaction state visitor doesn't have access to higher level cursors that combine store- and tx-state,
// but however has access to the two individually, and so does this combining here directly.
if (_txState.nodeIsDeletedInThisTx(nodeId))
{
return;
}
if (_txState.nodeIsAddedInThisTx(nodeId))
{
_txState.getNodeState(nodeId).labelDiffSets().Added.forEach(visitor.accept);
}
else
{
_nodeCursor.single(nodeId);
if (_nodeCursor.next())
{
long[] labels = _nodeCursor.labels();
LongDiffSets labelDiff = _txState.getNodeState(nodeId).labelDiffSets();
labelDiff.Added.forEach(visitor.accept);
foreach (long label in labels)
{
if (!labelDiff.IsRemoved(label))
{
visitor(label);
}
}
}
}
}
public override void Scan(IndexProgressor progressor, bool providesLabels, int label)
{
base.Initialize(progressor);
if (_read.hasTxStateWithChanges())
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.storageengine.api.txstate.LongDiffSets changes = read.txState().nodesWithLabelChanged(label);
LongDiffSets changes = _read.txState().nodesWithLabelChanged(label);
_added = changes.Augment(ImmutableEmptyLongIterator.INSTANCE);
_removed = mergeToSet(_read.txState().addedAndRemovedNodes().Removed, changes.Removed);
}
}
public override bool HasLabel(int label)
{
if (HasChanges())
{
TransactionState txState = _read.txState();
LongDiffSets diffSets = txState.NodeStateLabelDiffSets(_storeCursor.entityReference());
if (diffSets.Added.contains(label))
{
return(true);
}
if (diffSets.Removed.contains(label))
{
return(false);
}
}
//Get labels from store and put in intSet, unfortunately we get longs back
return(_storeCursor.hasLabel(label));
}
