Source code: ognl/MethodAccessor.java
1 //--------------------------------------------------------------------------
2 // Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
3 // All rights reserved.
4 //
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
7 // met:
8 //
9 // 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
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29 // DAMAGE.
30 //--------------------------------------------------------------------------
31 package ognl;
32
33 import java.util.List;
34 import java.util.Map;
35
36 /**
37 * This interface defines methods for callinig methods in a target object.
38 * Methods are broken up into static and instance methods for convenience.
39 * indexes into the target object, which must be an array.
40 * @author Luke Blanshard (blanshlu@netscape.net)
41 * @author Drew Davidson (drew@ognl.org)
42 */
43 public interface MethodAccessor
44 {
45 /**
46 * Calls the static method named with the arguments given on the class given.
47 * @param context expression context in which the method should be called
48 * @param targetClass the object in which the method exists
49 * @param methodName the name of the method
50 * @param args the arguments to the method
51 * @result result of calling the method
52 * @exception MethodFailedException if there is an error calling the method
53 */
54 Object callStaticMethod( Map context, Class targetClass, String methodName, Object[] args ) throws MethodFailedException;
55
56 /**
57 * Calls the method named with the arguments given.
58 * @param context expression context in which the method should be called
59 * @param target the object in which the method exists
60 * @param methodName the name of the method
61 * @param args the arguments to the method
62 * @result result of calling the method
63 * @exception MethodFailedException if there is an error calling the method
64 */
65 Object callMethod( Map context, Object target, String methodName, Object[] args ) throws MethodFailedException;
66 }