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Java > Open Source Codes > org > apache > avalon > extension > manager > impl > NoopExtensionManager


1 /*
2  * Copyright 2004 Apache Software Foundation
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
12  * implied.
13  *
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 package org.apache.avalon.extension.manager.impl;
19
20 import org.apache.avalon.extension.Extension;
21 import org.apache.avalon.extension.manager.ExtensionManager;
22 import org.apache.avalon.extension.manager.OptionalPackage;
23
24 /**
25  * A Noop ExtensionManager that can't provide any extensions.
26  * This is for use in certain environments (ala Servlets) that
27  * require apps to be be self-contained.
28  *
29  * @author <a HREF="mailto:dev@avalon.apache.org">Avalon Development Team</a>
30  * @version $Revision: 1.2 $ $Date: 2004/02/24 22:39:31 $
31  */
32 public class NoopExtensionManager
33     implements ExtensionManager
34 {
35     /**
36      * Return an empty array of {@link OptionalPackage}s.
37      *
38      * @param extension the extension looking for
39      * @see ExtensionManager#getOptionalPackages
40      */
41     public OptionalPackage[] getOptionalPackages( final Extension extension )
42     {
43         return new OptionalPackage[ 0 ];
44     }
45 }
46
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