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src/share/classes/org/omg/CORBA/ObjectHolder.java@7ef37b2cdcad (annotated)

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

Wed, 27 Apr 2016 01:21:28 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:21:28 +0800

changeset 0

7ef37b2cdcad

child 748

6845b95cba6b

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/corba/
changeset: 765:f46df0af2ca8
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1996, 2001, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package org.omg.CORBA;
aoqi@0	27
aoqi@0	28	import org.omg.CORBA.portable.Streamable;
aoqi@0	29	import org.omg.CORBA.portable.InputStream;
aoqi@0	30	import org.omg.CORBA.portable.OutputStream;
aoqi@0	31
aoqi@0	32
aoqi@0	33	/**
aoqi@0	34	* The Holder for <tt>Object</tt>. For more information on
aoqi@0	35	* Holder files, see <a href="doc-files/generatedfiles.html#holder">
aoqi@0	36	* "Generated Files: Holder Files"</a>.<P>
aoqi@0	37	* A Holder class for a CORBA object reference (a value of type
aoqi@0	38	* <code>org.omg.CORBA.Object</code>). It is usually
aoqi@0	39	* used to store "out" and "inout" parameters in IDL methods.
aoqi@0	40	* If an IDL method signature has a CORBA Object reference as an "out"
aoqi@0	41	* or "inout" parameter, the programmer must pass an instance of
aoqi@0	42	* <code>ObjectHolder</code> as the corresponding
aoqi@0	43	* parameter in the method invocation; for "inout" parameters, the programmer
aoqi@0	44	* must also fill the "in" value to be sent to the server.
aoqi@0	45	* Before the method invocation returns, the ORB will fill in the
aoqi@0	46	* value corresponding to the "out" value returned from the server.
aoqi@0	47	* <P>
aoqi@0	48	* If <code>myObjectHolder</code> is an instance of <code>ObjectHolder</code>,
aoqi@0	49	* the value stored in its <code>value</code> field can be accessed with
aoqi@0	50	* <code>myObjectHolder.value</code>.
aoqi@0	51	*
aoqi@0	52	* @since JDK1.2
aoqi@0	53	*/
aoqi@0	54	public final class ObjectHolder implements Streamable {
aoqi@0	55	/**
aoqi@0	56	* The <code>Object</code> value held by this <code>ObjectHolder</code>
aoqi@0	57	* object.
aoqi@0	58	*/
aoqi@0	59	public Object value;
aoqi@0	60
aoqi@0	61	/**
aoqi@0	62	* Constructs a new <code>ObjectHolder</code> object with its
aoqi@0	63	* <code>value</code> field initialized to <code>null</code>.
aoqi@0	64	*/
aoqi@0	65	public ObjectHolder() {
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	/**
aoqi@0	69	* Constructs a new <code>ObjectHolder</code> object with its
aoqi@0	70	* <code>value</code> field initialized to the given
aoqi@0	71	* <code>Object</code>.
aoqi@0	72	* @param initial the <code>Object</code> with which to initialize
aoqi@0	73	* the <code>value</code> field of the newly-created
aoqi@0	74	* <code>ObjectHolder</code> object
aoqi@0	75	*/
aoqi@0	76	public ObjectHolder(Object initial) {
aoqi@0	77	value = initial;
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	/**
aoqi@0	81	* Reads from <code>input</code> and initalizes the value in
aoqi@0	82	* this <code>ObjectHolder</code> object
aoqi@0	83	* with the unmarshalled data.
aoqi@0	84	*
aoqi@0	85	* @param input the InputStream containing CDR formatted data from the wire.
aoqi@0	86	*/
aoqi@0	87	public void _read(InputStream input) {
aoqi@0	88	value = input.read_Object();
aoqi@0	89	}
aoqi@0	90
aoqi@0	91	/**
aoqi@0	92	* Marshals to <code>output</code> the value in
aoqi@0	93	* this <code>ObjectHolder</code> object.
aoqi@0	94	*
aoqi@0	95	* @param output the OutputStream which will contain the CDR formatted data.
aoqi@0	96	*/
aoqi@0	97	public void _write(OutputStream output) {
aoqi@0	98	output.write_Object(value);
aoqi@0	99	}
aoqi@0	100
aoqi@0	101	/**
aoqi@0	102	* Returns the TypeCode corresponding to the value held in
aoqi@0	103	* this <code>ObjectHolder</code> object
aoqi@0	104	*
aoqi@0	105	* @return the TypeCode of the value held in
aoqi@0	106	* this <code>ObjectHolder</code> object
aoqi@0	107	*/
aoqi@0	108	public org.omg.CORBA.TypeCode _type() {
aoqi@0	109	return org.omg.CORBA.ORB.init().get_primitive_tc(TCKind.tk_objref);
aoqi@0	110	}
aoqi@0	111	}