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.dispatch;
24:
25: /**
26: * Handler to invoke methods with one argument.
27: * @author Pavel Vlasov
28: * @revision $Revision$
29: */
30: public interface InvocationHandler {
31:
32: /**
33: * Invokes target method. Passes returned value(s) to result consumer.
34: * The target "method" might be invoked multiple times, e.g. in composite
35: * invocation handler scenario.
36: * @param parameter
37: * @param resultConsumer
38: * @throws Throwable
39: */
40: void invoke(Object arg, ResultConsumer resultConsumer)
41: throws Throwable;
42:
43: /**
44: * This method is used to build invocation network.
45: * @return Invocation parameter type. Null if parameter type is unknown.
46: */
47: Class getParameterType();
48: }
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