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.runtime;
020    
021    import java.util.EventObject;
022    
023    
024    /**
025     * Event triggered as a result of a state change.
026     *
027     * @author <a href="http://www.dpml.net">Digital Product Management Library</a>
028     * @version 2.1.1
029     */
030    public abstract class ComponentEvent extends EventObject
031    {
032       /**
033        * Serial version identifier.
034        */
035        static final long serialVersionUID = 1L;
036    
037        private final Component m_component;
038    
039       /**
040        * Construct a new <code>StateEvent</code>.
041        *
042        * @param source the source component
043        */
044        public ComponentEvent( final Component source )
045        {
046            super( source );
047            m_component = source;
048        }
049    
050       /**
051        * Return the component that initiated the event.
052        * @return the source component
053        */
054        public Component getComponent()
055        {
056            return m_component;
057        }
058    }
059