001 /* StubDelegate.java -- 002 Copyright (C) 2002, 2005 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package javax.rmi.CORBA; 040 041 import org.omg.CORBA.ORB; 042 043 import java.io.IOException; 044 import java.io.ObjectInputStream; 045 import java.io.ObjectOutputStream; 046 047 import 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 */ 057 public 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 }