src/share/classes/org/omg/CORBA/ObjectHolder.java

Tue, 25 May 2010 15:52:11 -0700

author
ohair
date
Tue, 25 May 2010 15:52:11 -0700
changeset 158
91006f157c46
parent 1
55540e827aef
child 748
6845b95cba6b
permissions
-rw-r--r--

6943119: Rebrand source copyright notices
Reviewed-by: darcy

duke@1 1 /*
ohair@158 2 * Copyright (c) 1996, 2001, Oracle and/or its affiliates. All rights reserved.
duke@1 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1 4 *
duke@1 5 * This code is free software; you can redistribute it and/or modify it
duke@1 6 * under the terms of the GNU General Public License version 2 only, as
ohair@158 7 * published by the Free Software Foundation. Oracle designates this
duke@1 8 * particular file as subject to the "Classpath" exception as provided
ohair@158 9 * by Oracle in the LICENSE file that accompanied this code.
duke@1 10 *
duke@1 11 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@1 14 * version 2 for more details (a copy is included in the LICENSE file that
duke@1 15 * accompanied this code).
duke@1 16 *
duke@1 17 * You should have received a copy of the GNU General Public License version
duke@1 18 * 2 along with this work; if not, write to the Free Software Foundation,
duke@1 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1 20 *
ohair@158 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@158 22 * or visit www.oracle.com if you need additional information or have any
ohair@158 23 * questions.
duke@1 24 */
duke@1 25
duke@1 26 package org.omg.CORBA;
duke@1 27
duke@1 28 import org.omg.CORBA.portable.Streamable;
duke@1 29 import org.omg.CORBA.portable.InputStream;
duke@1 30 import org.omg.CORBA.portable.OutputStream;
duke@1 31
duke@1 32
duke@1 33 /**
duke@1 34 * The Holder for <tt>Object</tt>. For more information on
duke@1 35 * Holder files, see <a href="doc-files/generatedfiles.html#holder">
duke@1 36 * "Generated Files: Holder Files"</a>.<P>
duke@1 37 * A Holder class for a CORBA object reference (a value of type
duke@1 38 * <code>org.omg.CORBA.Object</code>). It is usually
duke@1 39 * used to store "out" and "inout" parameters in IDL methods.
duke@1 40 * If an IDL method signature has a CORBA Object reference as an "out"
duke@1 41 * or "inout" parameter, the programmer must pass an instance of
duke@1 42 * <code>ObjectHolder</code> as the corresponding
duke@1 43 * parameter in the method invocation; for "inout" parameters, the programmer
duke@1 44 * must also fill the "in" value to be sent to the server.
duke@1 45 * Before the method invocation returns, the ORB will fill in the
duke@1 46 * value corresponding to the "out" value returned from the server.
duke@1 47 * <P>
duke@1 48 * If <code>myObjectHolder</code> is an instance of <code>ObjectHolder</code>,
duke@1 49 * the value stored in its <code>value</code> field can be accessed with
duke@1 50 * <code>myObjectHolder.value</code>.
duke@1 51 *
duke@1 52 * @since JDK1.2
duke@1 53 */
duke@1 54 public final class ObjectHolder implements Streamable {
duke@1 55 /**
duke@1 56 * The <code>Object</code> value held by this <code>ObjectHolder</code>
duke@1 57 * object.
duke@1 58 */
duke@1 59 public Object value;
duke@1 60
duke@1 61 /**
duke@1 62 * Constructs a new <code>ObjectHolder</code> object with its
duke@1 63 * <code>value</code> field initialized to <code>null</code>.
duke@1 64 */
duke@1 65 public ObjectHolder() {
duke@1 66 }
duke@1 67
duke@1 68 /**
duke@1 69 * Constructs a new <code>ObjectHolder</code> object with its
duke@1 70 * <code>value</code> field initialized to the given
duke@1 71 * <code>Object</code>.
duke@1 72 * @param initial the <code>Object</code> with which to initialize
duke@1 73 * the <code>value</code> field of the newly-created
duke@1 74 * <code>ObjectHolder</code> object
duke@1 75 */
duke@1 76 public ObjectHolder(Object initial) {
duke@1 77 value = initial;
duke@1 78 }
duke@1 79
duke@1 80 /**
duke@1 81 * Reads from <code>input</code> and initalizes the value in
duke@1 82 * this <code>ObjectHolder</code> object
duke@1 83 * with the unmarshalled data.
duke@1 84 *
duke@1 85 * @param input the InputStream containing CDR formatted data from the wire.
duke@1 86 */
duke@1 87 public void _read(InputStream input) {
duke@1 88 value = input.read_Object();
duke@1 89 }
duke@1 90
duke@1 91 /**
duke@1 92 * Marshals to <code>output</code> the value in
duke@1 93 * this <code>ObjectHolder</code> object.
duke@1 94 *
duke@1 95 * @param output the OutputStream which will contain the CDR formatted data.
duke@1 96 */
duke@1 97 public void _write(OutputStream output) {
duke@1 98 output.write_Object(value);
duke@1 99 }
duke@1 100
duke@1 101 /**
duke@1 102 * Returns the TypeCode corresponding to the value held in
duke@1 103 * this <code>ObjectHolder</code> object
duke@1 104 *
duke@1 105 * @return the TypeCode of the value held in
duke@1 106 * this <code>ObjectHolder</code> object
duke@1 107 */
duke@1 108 public org.omg.CORBA.TypeCode _type() {
duke@1 109 return org.omg.CORBA.ORB.init().get_primitive_tc(TCKind.tk_objref);
duke@1 110 }
duke@1 111 }

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