001/* StubDelegate.java -- 002 Copyright (C) 2002, 2005 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039package javax.rmi.CORBA; 040 041import org.omg.CORBA.ORB; 042 043import java.io.IOException; 044import java.io.ObjectInputStream; 045import java.io.ObjectOutputStream; 046 047import java.rmi.RemoteException; 048 049/** 050 * A delegate, implementing the functionality, provided by the {@link Stub}. 051 * The default delegate can be altered by setting the system property 052 * "javax.rmi.CORBA.StubClass" to the name of the alternative class that must 053 * implement StubDelegate. 054 * 055 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) 056 */ 057public interface StubDelegate 058{ 059 /** 060 * <p> 061 * Makes the stub ready for remote communication using the given ORB. 062 * </p> 063 * <p> 064 * It is frequently easier to call {@link PortableRemoteObject#connect} rather 065 * than this method. 066 * </p> 067 * 068 * @param orb the ORB where the Stub must be connected. 069 * 070 * @throws RemoteException if the stub is already connected to some other ORB. 071 * If the stub is already connected to the ORB that was passed as parameter, 072 * the method returns without action. 073 */ 074 void connect(Stub self, ORB orb) 075 throws RemoteException; 076 077 /** 078 * The objects stubs are equal if they refer the same remote object. 079 */ 080 boolean equals(Stub self, Object obj); 081 082 /** 083 * Get the hashcode fo this delegate. 084 */ 085 int hashCode(Stub self); 086 087 /** 088 * Read this stub from the object input stream. 089 */ 090 void readObject(Stub self, ObjectInputStream s) 091 throws IOException, ClassNotFoundException; 092 093 /** 094 * Write this stub to the object output stream. 095 */ 096 void writeObject(Stub self, ObjectOutputStream s) 097 throws IOException; 098 099 /** 100 * Get the string representation of this stub. 101 */ 102 String toString(Stub self); 103}