01: /*
02: * hammurapi-rules @mesopotamia.version@
03: * Hammurapi rules engine.
04: * Copyright (C) 2005 Hammurapi Group
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Lesser General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) any later version.
10: *
11: * This program is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: *
20: * URL: http://http://www.hammurapi.biz
21: * e-Mail: support@hammurapi.biz
22: */
23: package biz.hammurapi.rules;
24:
25: /**
26: * This interface is a facade for object dispatchers.
27: * Rule containers shall implement this interface.
28: * @author Pavel Vlasov
29: * @revision $Revision$
30: */
31: public interface KnowledgeBase {
32:
33: /**
34: * Adds object to the knowledge base.
35: * @param obj
36: */
37: void add(Object obj);
38:
39: /**
40: * Removes object from the knoledge base
41: * and all conclusions based on this object.
42: * @param obj
43: */
44: void remove(Object obj);
45:
46: /**
47: * Executes rules
48: */
49: void executeRules();
50:
51: /**
52: * Resets rules state (if any).
53: */
54: void reset();
55:
56: }
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