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.transit.model;
020    
021    import java.util.EventObject;
022    
023    /**
024     * An abstract event pertaining to host feature changes.
025     *
026     * @author <a href="http://www.dpml.net">The Digital Product Meta Library</a>
027     * @version 1.0.0
028     */
029    public abstract class HostEvent extends EventObject
030    {
031       /**
032        * Serial version identifier.
033        */
034        static final long serialVersionUID = 1L;
035    
036       /**
037        * Creation of a new host event.
038        * @param source the host model initiating the event
039        */
040        public HostEvent( HostModel source )
041        {
042            super( source );
043        }
044        
045       /**
046        * Return the host model that this event pertains to.
047        * @return the host model
048        */
049        public HostModel getHostModel()
050        {
051            return (HostModel) getSource();
052        }
053    }