VelMethod


1   package org.apache.velocity.util.introspection;
2   
3   /*
4    * Copyright 2002,2004 The Apache Software Foundation.
5    * 
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    * 
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   * 
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  /**
20   *  Method used for regular method invocation
21   *
22   *    $foo.bar()
23   *
24   *
25   * @author <a HREF="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
26   * @version $Id: VelMethod.java,v 1.2.4.1 2004/03/03 23:23:08 geirm Exp $
27   */
28  public interface VelMethod
29  {
30      /**
31       *  invocation method - called when the method invocationshould be
32       *  preformed and a value returned
33       */
34      public Object   invoke(Object   o, Object  [] params)
35          throws Exception  ;
36  
37      /**
38       *  specifies if this VelMethod is cacheable and able to be
39       *  reused for this class of object it was returned for
40       *
41       *  @return true if can be reused for this class, false if not
42       */
43      public boolean isCacheable();
44  
45      /**
46       *  returns the method name used
47       */
48      public String   getMethodName();
49  
50      /**
51       *  returns the return type of the method invoked
52       */
53      public Class   getReturnType();
54  }
55

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