001    /*
002     * Copyright (c) 2005 Stephen J. McConnell
003     *
004     * Licensed  under the  Apache License,  Version 2.0  (the "License");
005     * you may not use  this file  except in  compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *   http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed  under the  License is distributed on an "AS IS" BASIS,
012     * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
013     * implied.
014     *
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    
019    package net.dpml.component;
020    
021    import java.net.URI;
022    
023    /**
024     * Exception thrown in response to a request for an unknown component.
025     *
026     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
027     * @version 1.2.0
028     */
029    public class ComponentNotFoundException extends ControlException 
030    {
031       /**
032        * Serial version identifier.
033        */
034        static final long serialVersionUID = 1L;
035    
036       /**
037        * Creation of a new <tt>ComponentNotFoundException</tt>.
038        * @param uri the controller uri
039        * @param key the requested component key
040        */
041        public ComponentNotFoundException( URI uri, String key )
042        {
043            super( uri, key );
044        }
045    
046       /**
047        * Return the requested key.
048        * @return the key
049        */
050        public String getKey()
051        {
052            return getMessage();
053        }
054    }
055