01: //--------------------------------------------------------------------------
02: // Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
03: // All rights reserved.
04: //
05: // Redistribution and use in source and binary forms, with or without
06: // modification, are permitted provided that the following conditions are
07: // met:
08: //
09: // Redistributions of source code must retain the above copyright notice,
10: // this list of conditions and the following disclaimer.
11: // Redistributions in binary form must reproduce the above copyright
12: // notice, this list of conditions and the following disclaimer in the
13: // documentation and/or other materials provided with the distribution.
14: // Neither the name of the Drew Davidson nor the names of its contributors
15: // may be used to endorse or promote products derived from this software
16: // without specific prior written permission.
17: //
18: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21: // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22: // COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23: // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24: // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
25: // OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26: // AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27: // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
28: // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
29: // DAMAGE.
30: //--------------------------------------------------------------------------
31: package ognl;
32:
33: import java.util.*;
34:
35: /**
36: * Implementation of PropertyAccessor that uses reflection on the target object's class to
37: * find a field or a pair of set/get methods with the given property name.
38: * @author Luke Blanshard (blanshlu@netscape.net)
39: * @author Drew Davidson (drew@ognl.org)
40: */
41: public class ObjectMethodAccessor implements MethodAccessor {
42: /* MethodAccessor interface */
43: public Object callStaticMethod(Map context, Class targetClass,
44: String methodName, Object[] args)
45: throws MethodFailedException {
46: List methods = OgnlRuntime.getMethods(targetClass, methodName,
47: true);
48:
49: return OgnlRuntime.callAppropriateMethod((OgnlContext) context,
50: targetClass, null, methodName, null, methods, args);
51: }
52:
53: public Object callMethod(Map context, Object target,
54: String methodName, Object[] args)
55: throws MethodFailedException {
56: Class targetClass = (target == null) ? null : target.getClass();
57: Object source = target;
58: List methods = OgnlRuntime.getMethods(targetClass, methodName,
59: false);
60:
61: if ((methods == null) || (methods.size() == 0)) {
62: methods = OgnlRuntime.getMethods(targetClass, methodName,
63: true);
64: source = targetClass;
65: }
66: return OgnlRuntime.callAppropriateMethod((OgnlContext) context,
67: target, target, methodName, null, methods, args);
68: }
69: }
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