001 /* OutputStream.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.CORBA_2_3.portable; 040 041 import gnu.CORBA.CDR.Vio; 042 043 import org.omg.CORBA.portable.BoxedValueHelper; 044 import org.omg.CORBA.portable.CustomValue; 045 import org.omg.CORBA.portable.StreamableValue; 046 import org.omg.CORBA.portable.ValueBase; 047 048 import java.io.Serializable; 049 050 /** 051 * This class defines a new CDR input stream methods, added since 052 * CORBA 2.3. 053 * 054 * This class is abstract; no direct instances can be instantiated. 055 * Also, up till v 1.4 inclusive there are no methods that would 056 * return it directly. 057 * 058 * However since 1.3 all methods, declared as returning an 059 * org.omg.CORBA.portable.InputStream actually return the instance of this 060 * derived class and the new methods are accessible after the casting 061 * operation. 062 * 063 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org) 064 */ 065 public abstract class OutputStream 066 extends org.omg.CORBA.portable.OutputStream 067 { 068 /** 069 * Writes an abstract interface to the stream. An abstract interface can be 070 * eithe CORBA object or value type and is written as a union with the boolean 071 * discriminator (false for objects, true for value types). 072 * 073 * The object from value is separated by fact that all values implement the 074 * {@link ValueBase} interface. Also, the passed parameter is treated as value 075 * it it does not implement CORBA Object. 076 * 077 * @param an_interface an abstract interface to write. 078 */ 079 public void write_abstract_interface(java.lang.Object an_interface) 080 { 081 boolean isObject = !(an_interface instanceof ValueBase) 082 && an_interface instanceof org.omg.CORBA.Object; 083 084 write_boolean(isObject); 085 086 if (isObject) 087 write_Object((org.omg.CORBA.Object) an_interface); 088 else 089 write_value((Serializable) an_interface); 090 091 } 092 093 /** 094 * Writes a value type into the output stream. 095 * 096 * The value type must implement either {@link CustomValue} (for user-defined 097 * writing method) or {@link StreamableValue} (for standard writing using code, 098 * generated by IDL compiler). 099 * 100 * The written record will have a repository id, matching the class of the 101 * passed object. The codebase will not be written. 102 * 103 * @param value a value type object to write. 104 */ 105 public void write_value(Serializable value) 106 { 107 Vio.write(this, value); 108 } 109 110 /** 111 * Write value to the stream using the boxed value helper. 112 * 113 * The value type must implement either {@link CustomValue} 114 * (for user-defined writing method) or {@link StreamableValue} 115 * (for standard writing using code, generated by IDL compiler). 116 * 117 * @param value a value to write. 118 * @param helper a helper, responsible for the writing operation. 119 */ 120 public void write_value(Serializable value, BoxedValueHelper helper) 121 { 122 Vio.write(this, value, helper); 123 } 124 125 /** 126 * Writes a value type into the output stream, stating it is an 127 * instance of the given class. The written record 128 * will have a repository id, matching the passed class. 129 * The codebase will not be written. It the object 130 * being written is an instance of the different class, this results 131 * writing two Id inheritance hierarchy. 132 * 133 * The value type must implement either {@link CustomValue} 134 * (for user-defined writing method) or {@link StreamableValue} 135 * (for standard writing using code, generated by IDL compiler). 136 * 137 * @param value a value type object to write. 138 */ 139 public void write_value(Serializable value, Class clz) 140 { 141 Vio.write(this, value, clz); 142 } 143 144 /** 145 * Writes a value type into the output stream, stating it has the given 146 * repository id. 147 * 148 * The value type must implement either {@link CustomValue} (for user-defined 149 * writing method) or {@link StreamableValue} (for standard writing using code, 150 * generated by IDL compiler). 151 * 152 * @param repository_id a repository id of the value type. 153 * 154 * @param value a value type object to write. 155 */ 156 public void write_value(Serializable value, String repository_id) 157 { 158 Vio.write(this, value, repository_id); 159 } 160 }