public override Boolean IsGraphRelevant(LevelKey myLevelKey, DBObjectStream mySourceDBObject)
{
lock (_Levels)
{
if (!this.ContainsLevelKey(myLevelKey))
{
return false;
}
if (myLevelKey.Level == 0)
{
return this._Levels[myLevelKey.Level].ExpressionLevels[myLevelKey].Nodes.ContainsKey(mySourceDBObject.ObjectUUID);
}
else
{
if (mySourceDBObject != null)
{
var predecessorLevelKey = myLevelKey.GetPredecessorLevel(_DBContext.DBTypeManager);
if (!this.ContainsLevelKey(predecessorLevelKey))
{
var interestingEdge = new ExpressionEdge(mySourceDBObject.ObjectUUID, null, predecessorLevelKey.LastEdge);
//take the backwardEdges
return this._Levels[myLevelKey.Level].ExpressionLevels[myLevelKey].Nodes.Exists(item => item.Value.BackwardEdges[predecessorLevelKey.LastEdge].Contains(interestingEdge));
}
else
{
if (this._Levels[predecessorLevelKey.Level].ExpressionLevels[predecessorLevelKey].Nodes[mySourceDBObject.ObjectUUID].ForwardEdges.ContainsKey(myLevelKey.LastEdge))
{
if (this._Levels[predecessorLevelKey.Level].ExpressionLevels[predecessorLevelKey].Nodes[mySourceDBObject.ObjectUUID].ForwardEdges[myLevelKey.LastEdge].Count > 0)
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
}
else
{
throw new GraphDBException(new Error_ExpressionGraphInternal(new System.Diagnostics.StackTrace(true), "No DBObjectStream givon for graph relevance test in a higher level."));
}
}
}
}
public Boolean Equals(ExpressionEdge p)
{
// If parameter is null return false:
if ((object)p == null)
{
return false;
}
return (this._Destination == p.Destination) && (this._Direction == p.Direction);
}
