/// <summary> Assert from the right side is always going to be from an Alpha node.
///
/// </summary>
/// <param name="">factInstance
/// </param>
/// <param name="">engine
///
/// </param>
public override void assertRight(IFact rfact, Rete engine, IWorkingMemory mem)
{
IGenericMap <Object, Object> rightmem = (IGenericMap <Object, Object>)mem.getBetaRightMemory(this);
rightmem.Put(rfact, rfact);
IGenericMap <Object, Object> leftmem = (IGenericMap <Object, Object>)mem.getBetaLeftMemory(this);
IEnumerator itr = leftmem.Values.GetEnumerator();
while (itr.MoveNext())
{
IBetaMemory bmem = (IBetaMemory)itr.Current;
if (evaluate(bmem.LeftFacts, rfact, engine))
{
// now we propogate
bmem.addMatch(rfact);
propogateAssert(bmem.Index.add(rfact), engine, mem);
}
}
}
/// <summary> Assert from the right side is always going to be from an
/// Alpha node.
/// </summary>
/// <param name="">factInstance
/// </param>
/// <param name="">engine
///
/// </param>
public override void assertRight(IFact rfact, Rete engine, IWorkingMemory mem)
{
// we only proceed if the fact hasn't already entered
// the join node
Index linx = new Index(new IFact[0]);
IGenericMap <Object, Object> rightmem = (IGenericMap <Object, Object>)mem.getBetaRightMemory(this);
rightmem.Put(rfact, rfact);
// now that we've added the facts to the list, we
// proceed with evaluating the fact
IGenericMap <Object, Object> leftmem = (IGenericMap <Object, Object>)mem.getBetaLeftMemory(this);
IEnumerator itr = leftmem.Values.GetEnumerator();
while (itr.MoveNext())
{
IBetaMemory bmem = (IBetaMemory)itr.Current;
int prevCount = bmem.matchCount();
if (evaluate(linx.Facts, rfact, engine))
{
bmem.addMatch(rfact);
}
// When facts are asserted from the right, it can only
// increase the match count, so basically it will never
// need to propogate to successor nodes.
if (prevCount == 0 && bmem.matchCount() != 0)
{
linx = new Index(new IFact[0]);
// we have to retract
try
{
propogateRetract(linx, engine, mem);
}
catch (RetractException e)
{
throw new AssertException("NotJion - " + e.Message);
}
}
}
}