public override void PropagateRetract(IExecutionContext context, Fact fact)
{
IEnumerable <Tuple> tuples = LeftSource.GetTuples(context);
foreach (Tuple tuple in tuples)
{
MemoryNode.PropagateRetract(context, tuple, fact);
}
}
public override void PropagateAssert(IExecutionContext context, Fact fact)
{
IEnumerable <Tuple> tuples = LeftSource.GetTuples(context);
foreach (Tuple tuple in tuples)
{
if (MatchesConditions(context, tuple, fact))
{
MemoryNode.PropagateAssert(context, tuple, fact);
}
}
}
public override void PropagateUpdate(IExecutionContext context, Fact fact)
{
IEnumerable <Tuple> tuples = LeftSource.GetTuples(context);
foreach (Tuple tuple in tuples)
{
if (MatchesConditions(tuple, fact))
{
PropagateMatchedUpdate(context, tuple, fact);
}
else
{
PropagateMatchedRetract(context, tuple, fact);
}
}
}
protected IEnumerable <TupleFactSet> JoinedSets(IExecutionContext context, IList <Fact> facts)
{
var tuples = LeftSource.GetTuples(context).ToList();
if (tuples.Count == 0)
{
return(EmptySetList);
}
int level = tuples[0].Level;
IDictionary <long, List <Fact> > factGroups = GroupFacts(facts, level);
if (factGroups.Count > 0)
{
return(JoinByGroupId(tuples, factGroups));
}
return(CrossJoin(tuples, facts));
}
protected IEnumerable <Tuple> MatchingTuples(IExecutionContext context, Fact fact)
{
return(LeftSource.GetTuples(context).Where(tuple => MatchesConditions(context, tuple, fact)));
}