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Java > Open Source Codes > org > apache > beehive > controls > api > bean > Extensible


1 package org.apache.beehive.controls.api.bean;
2 /*
3  * Copyright 2004 The Apache Software Foundation.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  * $Header:$
18  */

19
20 import java.lang.reflect.Method JavaDoc;
21
22 /**
23  * The Extensible interface is implemented by a Java Control implementation class if the
24  * control defines an extensibility model that allows extended operations to be declared
25  * using a JCX interface.
26  * <p>
27  * The interface provides the <code>invoke</code> method, that is called whenever an
28  * extended operation is called by the client at run time.
29  */

30 public interface Extensible
31 {
32     /**
33      * Called by the Controls runtime to handle calls to methods of an
34      * extensible control.
35      * <p>
36      * @param method The extended operation that was called.
37      * @param args Parameters of the operation.
38      * @return The value that should be returned by the operation.
39      * @throws java.lang.Throwable any exception declared on the extended operation may be
40      * thrown. If a checked exception is thrown from the implementation that is not declared
41      * on the original interface, it will be wrapped in a ControlException.
42      */

43     public Object JavaDoc invoke(Method JavaDoc method, Object JavaDoc[] args) throws Throwable JavaDoc;
44 }
45
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