/***************************************************************** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. ****************************************************************/ package org.apache.cayenne.remote; import java.rmi.Remote; import java.rmi.RemoteException; /** * Interface of a Cayenne remote service. * * @since 1.2 * @see org.apache.cayenne.rop.ROPServlet */ public interface RemoteService extends Remote { /** * Establishes a dedicated session with Cayenne DataChannel, returning session id. */ RemoteSession establishSession() throws RemoteException; /** * Creates a new session with the specified or joins an existing one. This method is * used to bootstrap collaborating clients of a single "group chat". */ RemoteSession establishSharedSession(String name) throws RemoteException; /** * Processes message on a remote server, returning the result of such processing. */ Object processMessage(ClientMessage message) throws RemoteException, Throwable; /** * Close remote service resources. * @sine 4.0 */ void close() throws RemoteException; }