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1   /*
2    * Copyright 2000-2001,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.apache.jetspeed.om.registry;
18  
19  import java.util.Iterator;
20  
21  /***
22   * <P>
23   * The <CODE>CapabilityMap</CODE> interface represents a list that
24   * stores capabilities a client is capable of. It is accessed
25   * by the portlet container to get information about the client's
26   * capabilities.
27   * </P>
28   * <P>
29   * The names of the capabilities are matched by the class variable names
30   * of the class <CODE>Capability</CODE>. To add a capability use the
31   * class variable name and <B>not</B> the internally used string value.
32   * </P>
33   *
34   * @author <a href="shesmer@raleigh.ibm.com">Stephan Hesmer</a>
35   * @author <a href="raphael@apache.org">Raphaël Luta</a>
36   * @see Capability
37   * @version $Id: CapabilityMap.java,v 1.3 2004/02/23 03:11:39 jford Exp $
38   */
39  public interface CapabilityMap
40  {
41  
42      /***
43       * Returns an enumeration of all capabilities a client
44       * is capabale of.
45       *
46       * @return an enumeration of all capabilities
47       */
48      public Iterator getCapabilities();
49  
50      /***
51       * Adds the given capability
52       *
53       * @param name   the name of the new capability
54       */
55      public void addCapability(String name);
56  
57      /***
58       * Removes the given capability
59       *
60       * @param name   the name of the capability to be removed
61       */
62      public void removeCapability(String name);
63  
64      /***
65       * Checks if the argument capability is included in this map
66       *
67       * @param capabiltiy a capability descriptor
68       * @return true if the capability is supported
69       */
70      public boolean contains(String capability);
71  
72      /***
73       * Checks if the all the elements of argument capability map
74       * are included in the current one
75       *
76       * @param map a CapabilityMap implementation to test
77       * @return true is all the elements the argument map are included in the
78       * current map.
79       */
80      public boolean containsAll(CapabilityMap map);
81  
82  }