1 /*
2 * The contents of this file are subject to the BT "ZEUS" Open Source
3 * Licence (L77741), Version 1.0 (the "Licence"); you may not use this file
4 * except in compliance with the Licence. You may obtain a copy of the Licence
5 * from $ZEUS_INSTALL/licence.html or alternatively from
6 * http://www.labs.bt.com/projects/agents/zeus/licence.htm
7 *
8 * Except as stated in Clause 7 of the Licence, software distributed under the
9 * Licence is distributed WITHOUT WARRANTY OF ANY KIND, either express or
10 * implied. See the Licence for the specific language governing rights and
11 * limitations under the Licence.
12 *
13 * The Original Code is within the package zeus.*.
14 * The Initial Developer of the Original Code is British Telecommunications
15 * public limited company, whose registered office is at 81 Newgate Street,
16 * London, EC1A 7AJ, England. Portions created by British Telecommunications
17 * public limited company are Copyright 1996-9. All Rights Reserved.
18 *
19 * THIS NOTICE MUST BE INCLUDED ON ANY COPY OF THIS FILE
20 */
21
22 /*
23 * @(#)s8.java 1.03b
24 */
25
26 package zeus.actors.graphs;
27
28 import java.util.*;
29 import zeus.util.*;
30 import zeus.concepts.*;
31 import zeus.actors.*;
32 import zeus.actors.rtn.*;
33 import zeus.actors.rtn.util.*;
34
35 public class s8 extends Node {
36 // ST 050500 1.03bB node description due to CVB
37 private String node_desc = "Planner :: reject(Goal)";
38
39
40 public final String getDesc()
41 {return node_desc;}
42
43
44 public final void setDesc(String node_desc)
45 {this.node_desc = node_desc;}
46 // ST 050500 1.03bE
47
48 public s8() {
49 super("s8");
50 }
51
52 // memory useful for backtracking
53
54 protected int exec() {
55 Planner table = context.Planner();
56
57 GraphStruct gs = (GraphStruct)input;
58
59 table.reject(gs.goal,gs.internal);
60 return OK;
61 }
62 protected void reset() {
63 // reset any state changed by exec()
64 }
65 }