private Value CommittedValue(RelationshipState relState, int property, StorageRelationshipScanCursor relationship, StoragePropertyCursor properties)
{
if (_state.relationshipIsAddedInThisTx(relState.Id))
{
return(Values.NO_VALUE);
}
relationship.Single(relState.Id);
if (!relationship.Next())
{
return(Values.NO_VALUE);
}
return(CommittedValue(properties, relationship.PropertiesReference(), property));
}
private void TakeSnapshot()
{
try
{
using (StorageNodeCursor node = _store.allocateNodeCursor(), StoragePropertyCursor properties = _store.allocatePropertyCursor(), StorageRelationshipScanCursor relationship = _store.allocateRelationshipScanCursor())
{
TokenRead tokenRead = _transaction.tokenRead();
_state.addedAndRemovedNodes().Removed.each(nodeId =>
{
node.Single(nodeId);
if (node.Next())
{
properties.Init(node.PropertiesReference());
while (properties.Next())
{
try
{
_removedNodeProperties.Add(new NodePropertyEntryView(this, nodeId, tokenRead.PropertyKeyName(properties.PropertyKey()), null, properties.PropertyValue()));
}
catch (PropertyKeyIdNotFoundKernelException e)
{
throw new System.InvalidOperationException("Nonexisting properties was modified for node " + nodeId, e);
}
}
foreach (long labelId in node.Labels())
{
try
{
_removedLabels.Add(new LabelEntryView(this, nodeId, tokenRead.NodeLabelName(toIntExact(labelId))));
}
catch (LabelNotFoundKernelException e)
{
throw new System.InvalidOperationException("Nonexisting label was modified for node " + nodeId, e);
}
}
}
});
_state.addedAndRemovedRelationships().Removed.each(relId =>
{
Relationship relationshipProxy = relationship(relId);
relationship.Single(relId);
if (relationship.Next())
{
properties.Init(relationship.PropertiesReference());
while (properties.Next())
{
try
{
_removedRelationshipProperties.Add(new RelationshipPropertyEntryView(relationshipProxy, tokenRead.PropertyKeyName(properties.PropertyKey()), null, properties.PropertyValue()));
}
catch (PropertyKeyIdNotFoundKernelException e)
{
throw new System.InvalidOperationException("Nonexisting node properties was modified for relationship " + relId, e);
}
}
}
});
foreach (NodeState nodeState in _state.modifiedNodes())
{
IEnumerator <StorageProperty> added = nodeState.AddedAndChangedProperties();
long nodeId = nodeState.Id;
while (added.MoveNext())
{
StorageProperty property = added.Current;
_assignedNodeProperties.Add(new NodePropertyEntryView(this, nodeId, tokenRead.PropertyKeyName(property.PropertyKeyId()), property.Value(), CommittedValue(nodeState, property.PropertyKeyId(), node, properties)));
}
nodeState.RemovedProperties().each(id =>
{
try
{
NodePropertyEntryView entryView = new NodePropertyEntryView(this, nodeId, tokenRead.PropertyKeyName(id), null, CommittedValue(nodeState, id, node, properties));
_removedNodeProperties.Add(entryView);
}
catch (PropertyKeyIdNotFoundKernelException e)
{
throw new System.InvalidOperationException("Nonexisting node properties was modified for node " + nodeId, e);
}
});
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.storageengine.api.txstate.LongDiffSets labels = nodeState.labelDiffSets();
LongDiffSets labels = nodeState.LabelDiffSets();
AddLabelEntriesTo(nodeId, labels.Added, _assignedLabels);
AddLabelEntriesTo(nodeId, labels.Removed, _removedLabels);
}
foreach (RelationshipState relState in _state.modifiedRelationships())
{
Relationship relationshipProxy = relationship(relState.Id);
IEnumerator <StorageProperty> added = relState.AddedAndChangedProperties();
while (added.MoveNext())
{
StorageProperty property = added.Current;
_assignedRelationshipProperties.Add(new RelationshipPropertyEntryView(relationshipProxy, tokenRead.PropertyKeyName(property.PropertyKeyId()), property.Value(), CommittedValue(relState, property.PropertyKeyId(), relationship, properties)));
}
relState.RemovedProperties().each(id =>
{
try
{
RelationshipPropertyEntryView entryView = new RelationshipPropertyEntryView(relationshipProxy, tokenRead.PropertyKeyName(id), null, CommittedValue(relState, id, relationship, properties));
_removedRelationshipProperties.Add(entryView);
}
catch (PropertyKeyIdNotFoundKernelException e)
{
throw new System.InvalidOperationException("Nonexisting properties was modified for relationship " + relState.Id, e);
}
});
}
}
}
catch (PropertyKeyIdNotFoundKernelException e)
{
throw new System.InvalidOperationException("An entity that does not exist was modified.", e);
}
}