private void DeleteToken(ReteNode node, Token token)
{
if (node is Beta_Memory)
{
Beta_Memory b_node = (Beta_Memory)node;
b_node.Items.Remove(token);
}
else if (node is P_Node)
{
P_Node p_node = (P_Node)node;
//p_node.Items.Remove(tok);
// foamliu, 2008/11/23, for publishing (de)activation events.
p_node.RemoveToken(token);
}
else if (node is Negative_Node)
{
Negative_Node n_node = (Negative_Node)node;
n_node.Items.Remove(token);
}
else if (node is NCC_Node)
{
NCC_Node ncc_node = (NCC_Node)node;
ncc_node.Items.Remove(token);
}
}
private void P_NodeLeftActivation(P_Node p_Node, Token t, WME w)
{
// foamliu, 2008/08/26, otherwise we cannot delete token in p-node.
Token new_token = Make_Token(p_Node, t, w);
//p_Node.Items.Insert(0, new_token);
// foamliu, 2008/11/23, for publishing (de)activation events.
p_Node.InsertToken(new_token);
}
//public void Add_Production(List<Condition> lhs)
//{
// if (lhs == null || lhs.Count==0)
// return;
// //// dummy-top-node
// RETE_Node current_node = this.m_dummy_top_node;
// List<Condition> earlier_conditions = new List<Condition>();
// //Condition c0 = lhs[0];
// //List<Test_At_Join_Node> tests = Get_Join_Tests_From_Condition(c0, earlier_conditions);
// //Alpha_Memory am = Build_Or_Share_Alpha_Memory(c0);
// //current_node = Build_Or_Share_Join_Node(current_node, am, tests);
// //for (int i = 1; i < lhs.Count; i++)
// //{
// // Condition ci = lhs[i];
// // current_node = Build_Or_Share_Beta_Memory_Node(current_node);
// // earlier_conditions.Add(lhs[i - 1]); // c(i-1)
// // tests = Get_Join_Tests_From_Condition(ci, earlier_conditions);
// // am = Build_Or_Share_Alpha_Memory(ci);
// // current_node = Build_Or_Share_Join_Node(current_node, am, tests);
// //}
// current_node = Build_Or_Share_Network_For_Conditions(current_node, lhs, earlier_conditions);
// P_Node p_node = new P_Node();
// current_node.Children.Add(p_node);
// p_node.Parent = current_node;
// this.P_Nodes.Add(p_node);
// Update_New_Node_With_Matches_From_Above(p_node);
//}
public void AddProduction(Production prod)
{
ReteNode current_node = BuildOrShareNetworkForConditions(this.m_dummy_top_node, prod.LHS, new List <Condition>());
// foamliu, 2008/11/21, more comments.
// build a new production node
P_Node p_node = new P_Node(prod);
prod.P_Node = p_node;
// make it a child of current node
current_node.Children.Add(p_node);
p_node.Parent = current_node;
// foamliu, 2008/11/21, remove "P_Nodes", access p-nodes from productions.
//this.P_Nodes.Add(p_node);
UpdateNewNodeWithMatchesFromAbove(p_node);
}