1 /*
2 wsmo4j extension - a Choreography API and Reference Implementation
3
4 Copyright (c) 2005, University of Innsbruck, Austria
5
6 This library is free software; you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License as published by the Free
8 Software Foundation; either version 2.1 of the License, or (at your option)
9 any later version.
10 This library is distributed in the hope that it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
13 details.
14 You should have received a copy of the GNU Lesser General Public License along
15 with this library; if not, write to the Free Software Foundation, Inc.,
16 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19 package org.wsmo.service.rule;
20
21 /**
22 * An update may have two forms: - update(oldFact => newFact). -
23 * update(newFact). In the first form, the oldFact object must be defined. In
24 * the second form, this must not be defined.
25 *
26 * <pre>
27 * Created on Jul 26, 2005
28 * Committed by $Author: vassil_momtchev $
29 * $Source$
30 * </pre>
31 *
32 * @author James Scicluna
33 * @author Thomas Haselwanter
34 * @author Holger Lausen
35 *
36 * @version $Revision: 1844 $ $Date: 2006-10-24 17:11:48 +0300 (Tue, 24 Oct 2006) $
37 */
38 public interface Update extends UpdateRule {
39
40 /**
41 * Returns the new fact defined by the update rule.
42 *
43 * @return A CompoundFact object representing the new fact to be added to
44 * the knowledge base
45 */
46 public CompoundFact getNewFact();
47
48 /**
49 * Sets the new fact associated with the update rule.
50 *
51 * @param newFact
52 * A CompoundFact object representing the new fact to be added to
53 * the knowledge base
54 */
55 public void setNewFact(CompoundFact newFact);
56
57 /**
58 * Returns the old fact defined by the update rule.
59 *
60 * @return A CompoundFact object representing the old fact to be deleted
61 * from the knowledge base
62 */
63 public CompoundFact getOldFact();
64
65 /**
66 * Sets the old fact associated with the update rule.
67 *
68 * @param oldFact
69 * A CompoundFact object representing the old fact to be deleted
70 * from the knowledge base
71 */
72 public void setOldFact(CompoundFact oldFact);
73 }
74
75 /*
76 * $Log$
77 * Revision 1.1 2006/10/24 14:11:48 vassil_momtchev
78 * choreography/orchestration rules refactored. different types where appropriate now supported
79 *
80 * Revision 1.6 2006/01/31 10:22:08 vassil_momtchev
81 * Update is composed by 2 CompoundFacts the new facts, and the facts to be deleted; log footer added
82 *
83 */