public override IEnumerator <PropertyContainer> Iterator()
{
// TODO Don't loop through them all up front
LinkedList <PropertyContainer> entities = new LinkedList <PropertyContainer>();
TraversalBranch branch = _start;
while (branch.Length() > 0)
{
entities.AddFirst(branch.EndNode());
entities.AddFirst(branch.LastRelationship());
branch = branch.Parent();
}
entities.AddFirst(branch.EndNode());
if (_cachedStartNode == null)
{
_cachedStartNode = branch.EndNode();
}
if (_end.length() > 0)
{
entities.AddLast(_end.lastRelationship());
branch = _end.parent();
while (branch.Length() > 0)
{
entities.AddLast(branch.EndNode());
entities.AddLast(branch.LastRelationship());
branch = branch.Parent();
}
entities.AddLast(branch.EndNode());
}
return(entities.GetEnumerator());
}
private LinkedList <Relationship> GatherRelationships(TraversalBranch first, TraversalBranch then)
{
// TODO Don't loop through them all up front
LinkedList <Relationship> relationships = new LinkedList <Relationship>();
TraversalBranch branch = first;
while (branch.Length() > 0)
{
relationships.AddFirst(branch.LastRelationship());
branch = branch.Parent();
}
// We can might as well cache start node since we're right now there anyway
if (_cachedStartNode == null && first == _start && branch.Length() >= 0)
{
_cachedStartNode = branch.EndNode();
}
branch = then;
while (branch.Length() > 0)
{
relationships.AddLast(branch.LastRelationship());
branch = branch.Parent();
}
if (_cachedStartNode == null && then == _start && branch.Length() >= 0)
{
_cachedStartNode = branch.EndNode();
}
return(relationships);
}
public override bool Equals(object obj)
{
if (obj == this)
{
return(true);
}
if (!(obj is TraversalBranch))
{
return(false);
}
TraversalBranch branch = this;
TraversalBranch other = ( TraversalBranch )obj;
if (branch.Length() != other.Length())
{
return(false);
}
while (branch.Length() > 0)
{
if (!branch.LastRelationship().Equals(other.LastRelationship()))
{
return(false);
}
branch = branch.Parent();
other = other.Parent();
}
return(true);
}
public override IEnumerable <Relationship> Relationships()
{
LinkedList <Relationship> relationships = new LinkedList <Relationship>();
TraversalBranch branch = this;
while (branch.Length() > 0)
{
relationships.AddFirst(branch.LastRelationship());
branch = branch.Parent();
}
return(relationships);
}
public override IEnumerator <PropertyContainer> Iterator()
{
LinkedList <PropertyContainer> entities = new LinkedList <PropertyContainer>();
TraversalBranch branch = this;
while (branch.Length() > 0)
{
entities.AddFirst(branch.EndNode());
entities.AddFirst(branch.LastRelationship());
branch = branch.Parent();
}
entities.AddFirst(branch.EndNode());
return(entities.GetEnumerator());
}
public override int GetHashCode()
{
TraversalBranch branch = this;
int hashCode = 1;
while (branch.Length() > 0)
{
Relationship relationship = branch.LastRelationship();
hashCode = 31 * hashCode + relationship.GetHashCode();
branch = branch.Parent();
}
if (hashCode == 1)
{
hashCode = EndNode().GetHashCode();
}
return(hashCode);
}
internal BidirectionalTraversalBranchPath(TraversalBranch start, TraversalBranch end)
{
this._start = start;
this._end = end;
// Most used properties: endNode and lastRelationship, so cache them right away (semi-expensive though).
IEnumerator <PropertyContainer> endPathEntities = end.GetEnumerator();
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
this._endNode = ( Node )endPathEntities.next();
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
this._lastRelationship = endPathEntities.hasNext() ? (Relationship)endPathEntities.next() : start.LastRelationship();
}
protected internal override double?CalculateValue(TraversalBranch next)
{
return(next.Length() == 0 ? 0d : outerInstance.costEvaluator.GetCost(next.LastRelationship(), Direction.OUTGOING));
}
protected internal override int?calculateValue(TraversalBranch next)
{
return(next.Length() == 0 ? 0 : evaluator.getCost(next.LastRelationship(), Direction.BOTH));
}
