001 /* ServantActivatorPOA.java --
002 Copyright (C) 2005, 2006 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 org.omg.PortableServer;
040
041 import gnu.CORBA.Poa.gnuServantObject;
042
043 import org.omg.CORBA.NO_IMPLEMENT;
044 import org.omg.CORBA.ORB;
045 import org.omg.CORBA.SystemException;
046 import org.omg.CORBA.portable.InputStream;
047 import org.omg.CORBA.portable.InvokeHandler;
048 import org.omg.CORBA.portable.OutputStream;
049 import 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 */
065 public 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 }