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 * @(#)se0.java 1.03b
24 */
25
26
27 package zeus.actors.graphs;
28
29 import java.util.*;
30 import zeus.util.*;
31 import zeus.concepts.*;
32 import zeus.actors.*;
33 import zeus.actors.rtn.*;
34 import zeus.actors.rtn.util.*;
35
36
37 public class se0 extends Node {
38
39 // LL 040500 1.03bB
40 private String node_desc = "Start buying";
41 public final String getDesc() {return node_desc;};
42 public final void setDesc(String node_desc) {this.node_desc = node_desc;};
43 // LL 040500 1.03bE
44
45 public se0() {
46 super("se0");
47 }
48 protected int exec() {
49 ResourceDb db = context.ResourceDb();
50
51 GraphStruct gs = (GraphStruct) input;
52 Goal g = (Goal)gs.goal.elementAt(0);
53 Fact f = g.getFact();
54
55 gs.any = new DataRec(f);
56 output = input;
57 return db.reserve((DataRec)gs.any,(int)context.now(),f.getNumber()) == 0
58 ? OK : FAIL;
59 }
60 protected void reset() {
61 ResourceDb db = context.ResourceDb();
62 GraphStruct gs = (GraphStruct)input;
63 db.free((DataRec)gs.any);
64 gs.any = null;
65 }
66 }