001    /*
002     * Copyright 2005 Stephen 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.net.URI;
022    import java.rmi.Remote;
023    import java.rmi.RemoteException;
024    
025    import net.dpml.lang.Value;
026    
027    /**
028     * A CodeBaseModel maintains information about the configuration of 
029     * a pluggable subsystem.
030     *
031     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
032     * @version 1.0.1
033     */
034    public interface CodeBaseModel extends Remote
035    {
036       /**
037        * Return the uri of the plugin to be used for the subsystem.
038        * @return the codebase plugin uri
039        * @exception RemoteException if a remote exception occurs
040        */
041        URI getCodeBaseURI() throws RemoteException;
042    
043       /**
044        * Add a codebase listener to the model.
045        * @param listener the listener to add
046        * @exception RemoteException if a remote exception occurs
047        */
048        void addCodeBaseListener( CodeBaseListener listener ) throws RemoteException;
049    
050       /**
051        * Remove a codebase listener from the model.
052        * @param listener the listener to remove
053        * @exception RemoteException if a remote exception occurs
054        */
055        void removeCodeBaseListener( CodeBaseListener listener ) throws RemoteException;
056    
057       /**
058        * Return the array of codebase parameter values.
059        *
060        * @return the parameter value array
061        * @exception RemoteException if a remote exception occurs
062        */
063        Value[] getParameters() throws RemoteException;
064    
065    }