001    /* 
002     * Copyright 2005-2006 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.metro;
020    
021    import java.rmi.RemoteException;
022    import java.util.Map;
023    
024    import net.dpml.component.Component;
025    
026    /**
027     * Local interface through which a component implementation may 
028     * interact with the assigned model, subsidary parts, and context.
029     *
030     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
031     * @version 1.0.4
032     */
033    public interface ComponentHandler extends Component, ComponentContext
034    {
035       /**
036        * Return a mutable context map.  The map may be used by component
037        * implementations to override context entries in the associated 
038        * component instance.
039        *
040        * @return the context map
041        * @exception RemoteException if a remote I/O error occurs
042        */
043        Map getContextMap() throws RemoteException;
044        
045    }
046