001/* _BindingIteratorStub.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.CosNaming; 040 041import org.omg.CORBA.MARSHAL; 042import org.omg.CORBA.portable.ApplicationException; 043import org.omg.CORBA.portable.Delegate; 044import org.omg.CORBA.portable.InputStream; 045import org.omg.CORBA.portable.ObjectImpl; 046import org.omg.CORBA.portable.OutputStream; 047import org.omg.CORBA.portable.RemarshalException; 048 049/** 050 * The binding interator stub (proxy), used on the client side. 051 * The BindingIterator methods contains the code for remote invocaton. 052 * 053 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 054 */ 055public class _BindingIteratorStub 056 extends ObjectImpl 057 implements BindingIterator 058{ 059 /** 060 * Use serialVersionUID (v1.4) for interoperability. 061 */ 062 private static final long serialVersionUID = 8969257760771186704L; 063 064 /** 065 * The object can be destroyed only once. 066 */ 067 private boolean destroyed; 068 069 /** 070 * Create the stub. 071 */ 072 public _BindingIteratorStub() 073 { 074 super(); 075 } 076 077 /** 078 * Create the stub that used the given delegate. 079 */ 080 _BindingIteratorStub(Delegate delegate) 081 { 082 super(); 083 _set_delegate(delegate); 084 } 085 086 /** 087 * Get an array of repository ids for this object. 088 */ 089 public String[] _ids() 090 { 091 return new String[] { BindingIteratorHelper.id() }; 092 } 093 094 /** 095 * Returns true if the object has been destroyed. 096 */ 097 public boolean _non_existent() 098 { 099 return destroyed; 100 } 101 102 /** 103 * Destroys the object on the server side. 104 * The destruction message is sent only once, even if the method is 105 * called repeatedly. 106 */ 107 public void destroy() 108 { 109 if (destroyed) 110 return; 111 112 InputStream _in = null; 113 try 114 { 115 OutputStream _out = _request("destroy", true); 116 _in = _invoke(_out); 117 destroyed = true; 118 } 119 catch (ApplicationException _ex) 120 { 121 _in = _ex.getInputStream(); 122 throw new MARSHAL(_ex.getId()); 123 } 124 catch (RemarshalException _rm) 125 { 126 destroy(); 127 } 128 finally 129 { 130 _releaseReply(_in); 131 } 132 } 133 134 /** {@inheritDoc} */ 135 public boolean next_n(int amount, BindingListHolder a_list) 136 { 137 InputStream _in = null; 138 try 139 { 140 OutputStream _out = _request("next_n", true); 141 _out.write_ulong(amount); 142 _in = _invoke(_out); 143 144 boolean result = _in.read_boolean(); 145 a_list.value = BindingListHelper.read(_in); 146 return result; 147 } 148 catch (ApplicationException _ex) 149 { 150 _in = _ex.getInputStream(); 151 throw new MARSHAL(_ex.getId()); 152 } 153 catch (RemarshalException _rm) 154 { 155 return next_n(amount, a_list); 156 } 157 finally 158 { 159 _releaseReply(_in); 160 } 161 } 162 163 /** {@inheritDoc} */ 164 public boolean next_one(BindingHolder a_binding) 165 { 166 InputStream _in = null; 167 try 168 { 169 OutputStream _out = _request("next_one", true); 170 _in = _invoke(_out); 171 172 boolean result = _in.read_boolean(); 173 a_binding.value = BindingHelper.read(_in); 174 return result; 175 } 176 catch (ApplicationException _ex) 177 { 178 _in = _ex.getInputStream(); 179 throw new MARSHAL(_ex.getId()); 180 } 181 catch (RemarshalException _rm) 182 { 183 return next_one(a_binding); 184 } 185 finally 186 { 187 _releaseReply(_in); 188 } 189 } 190 191 /** 192 * Destroys the iterator instance on the server side, calling 193 * {@link #destroy()}. 194 * 195 * @throws java.lang.Throwable 196 */ 197 protected void finalize() 198 throws java.lang.Throwable 199 { 200 destroy(); 201 super.finalize(); 202 } 203}