001/* ServantActivatorPOA.java -- 002 Copyright (C) 2005, 2006 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 org.omg.PortableServer; 040 041import gnu.CORBA.Poa.gnuServantObject; 042 043import org.omg.CORBA.NO_IMPLEMENT; 044import org.omg.CORBA.ORB; 045import org.omg.CORBA.SystemException; 046import org.omg.CORBA.portable.InputStream; 047import org.omg.CORBA.portable.InvokeHandler; 048import org.omg.CORBA.portable.OutputStream; 049import org.omg.CORBA.portable.ResponseHandler; 050 051/** 052 * <p>This ServantActivator stub is an optional base for the 053 * servant activators. This stub cannot serve remote invocations, as 054 * methods in {@link ServantActivatorOperations} take POA as one of parameters. 055 * Both JDK 1.5 API and OMG specifies that POA is a local object that must not 056 * be transferred to the remote invocation target. 057 * </p><p> 058 * You do not need to derive your servant activator from this stub, 059 * it is enough to implement the {@link ServantActivator} interface. 060 * But you may choose to do this if you need the functional 061 * {@link #_all_interfaces(POA, byte[])} method or want to keep default 062 * behavior during the incarnation or etherialization. 063 * </p> 064 */ 065public abstract class ServantActivatorPOA 066 extends Servant 067 implements InvokeHandler, ServantActivatorOperations 068{ 069 /** 070 * Used to access the outer class in the nested delegator class. 071 */ 072 final ServantActivatorPOA THIS = this; 073 074 /** 075 * This class is used to support _this. 076 */ 077 class delegator 078 extends gnuServantObject 079 implements ServantActivator 080 { 081 delegator(Servant s) 082 { 083 super(s, new byte[ 0 ], null, null); 084 } 085 086 public Servant incarnate(byte[] key, POA poa) 087 throws org.omg.PortableServer.ForwardRequest 088 { 089 return THIS.incarnate(key, poa); 090 } 091 092 public void etherealize(byte[] key, POA poa, Servant servant, 093 boolean cleanup, boolean remains 094 ) 095 { 096 THIS.etherealize(key, poa, servant, cleanup, remains); 097 } 098 } 099 100 /** 101 * Our implementation will not call this method. After setting your 102 * manager to POA, it will call incarnate and etherialize directly. 103 */ 104 public OutputStream _invoke(String method, InputStream input, 105 ResponseHandler handler 106 ) 107 throws SystemException 108 { 109 throw new NO_IMPLEMENT(); 110 } 111 112 /** 113 * Returns an array of interfaces, supported by the servant activator. 114 */ 115 public String[] _all_interfaces(POA poa, byte[] Object_Id) 116 { 117 return new _ServantActivatorStub()._ids(); 118 } 119 120 /** 121 * Return the complete instance of the servant activator, based on 122 * the current class (ServantActivatorPOA or derived). 123 */ 124 public ServantActivator _this() 125 { 126 return new delegator(this); 127 } 128 129 /** 130 * Return the complete instance of the servant activator, based on 131 * the current class (ServantActivatorPOA or derived). 132 */ 133 public ServantActivator _this(ORB orb) 134 { 135 return new delegator(this); 136 } 137}