001 /* 002 * Copyright (c) 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.component; 020 021 import java.rmi.Remote; 022 import java.rmi.RemoteException; 023 024 import net.dpml.lang.Version; 025 026 027 /** 028 * The Component interface is implemented by objects that handle the runtime 029 * state of a component instance. 030 * 031 * @author <a href="http://www.dpml.net">Digital Product Meta Library</a> 032 * @version 1.0.4 033 */ 034 public interface Service extends Remote 035 { 036 /** 037 * Return the service class. 038 * @return the service class 039 * @exception RemoteException if a remoting I/O error occurs 040 */ 041 Class getServiceClass() throws RemoteException; 042 043 /** 044 * Return the service version. 045 * @return the version 046 * @exception RemoteException if a remoting I/O error occurs 047 */ 048 Version getVersion() throws RemoteException; 049 050 } 051