001/* 002 * Copyright 2002-2012 the original author or authors. 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 * https://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 implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.remoting.rmi; 018 019import java.lang.reflect.InvocationTargetException; 020import java.rmi.Remote; 021import java.rmi.RemoteException; 022 023import org.springframework.lang.Nullable; 024import org.springframework.remoting.support.RemoteInvocation; 025 026/** 027 * Interface for RMI invocation handlers instances on the server, 028 * wrapping exported services. A client uses a stub implementing 029 * this interface to access such a service. 030 * 031 * <p>This is an SPI interface, not to be used directly by applications. 032 * 033 * @author Juergen Hoeller 034 * @since 14.05.2003 035 */ 036public interface RmiInvocationHandler extends Remote { 037 038 /** 039 * Return the name of the target interface that this invoker operates on. 040 * @return the name of the target interface, or {@code null} if none 041 * @throws RemoteException in case of communication errors 042 * @see RmiServiceExporter#getServiceInterface() 043 */ 044 @Nullable 045 public String getTargetInterfaceName() throws RemoteException; 046 047 /** 048 * Apply the given invocation to the target object. 049 * <p>Called by 050 * {@link RmiClientInterceptor#doInvoke(org.aopalliance.intercept.MethodInvocation, RmiInvocationHandler)}. 051 * @param invocation object that encapsulates invocation parameters 052 * @return the object returned from the invoked method, if any 053 * @throws RemoteException in case of communication errors 054 * @throws NoSuchMethodException if the method name could not be resolved 055 * @throws IllegalAccessException if the method could not be accessed 056 * @throws InvocationTargetException if the method invocation resulted in an exception 057 */ 058 @Nullable 059 public Object invoke(RemoteInvocation invocation) 060 throws RemoteException, NoSuchMethodException, IllegalAccessException, InvocationTargetException; 061 062}