001    /* 
002     * Copyright 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.state;
020    
021    /**
022     * Exception thrown when a request is made for retrival of an operation 
023     * via an operation key and the key is unresolvable.
024     *
025     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
026     * @version 1.0.2
027     */
028    public class UnknownOperationException extends Exception
029    {
030       /**
031        * Serial version identifier.
032        */
033        static final long serialVersionUID = 1L;
034    
035       /**
036        * Construct a new <code>UnknownOperationException</code> instance.
037        *
038        * @param key the operation key
039        */
040        public UnknownOperationException( final String key )
041        {
042            super( key );
043        }
044    
045    }
046