duke@1: /*
ohair@158:  * Copyright (c) 1996, 2001, Oracle and/or its affiliates. All rights reserved.
duke@1:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@1:  *
duke@1:  * This code is free software; you can redistribute it and/or modify it
duke@1:  * under the terms of the GNU General Public License version 2 only, as
ohair@158:  * published by the Free Software Foundation.  Oracle designates this
duke@1:  * particular file as subject to the "Classpath" exception as provided
ohair@158:  * by Oracle in the LICENSE file that accompanied this code.
duke@1:  *
duke@1:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@1:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@1:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@1:  * version 2 for more details (a copy is included in the LICENSE file that
duke@1:  * accompanied this code).
duke@1:  *
duke@1:  * You should have received a copy of the GNU General Public License version
duke@1:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@1:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@1:  *
ohair@158:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@158:  * or visit www.oracle.com if you need additional information or have any
ohair@158:  * questions.
duke@1:  */
duke@1: 
duke@1: package org.omg.CORBA;
duke@1: 
duke@1: import org.omg.CORBA.portable.Streamable;
duke@1: import org.omg.CORBA.portable.InputStream;
duke@1: import org.omg.CORBA.portable.OutputStream;
duke@1: 
duke@1: /**
duke@1:  * The Holder for <tt>Any</tt>.  For more information on
duke@1:  * Holder files, see <a href="doc-files/generatedfiles.html#holder">
duke@1:  * "Generated Files: Holder Files"</a>.<P>
duke@1:  * A Holder class for <code>Any</code> objects
duke@1:  * that is used to store "out" and "inout" parameters in IDL methods.
duke@1:  * If an IDL method signature has an IDL <code>any</code> as an "out"
duke@1:  * or "inout" parameter, the programmer must pass an instance of
duke@1:  * <code>AnyHolder</code> as the corresponding
duke@1:  * parameter in the method invocation; for "inout" parameters, the programmer
duke@1:  * must also fill the "in" value to be sent to the server.
duke@1:  * Before the method invocation returns, the ORB will fill in the
duke@1:  * value corresponding to the "out" value returned from the server.
duke@1:  * <P>
duke@1:  * If <code>myAnyHolder</code> is an instance of <code>AnyHolder</code>,
duke@1:  * the value stored in its <code>value</code> field can be accessed with
duke@1:  * <code>myAnyHolder.value</code>.
duke@1:  *
duke@1:  * @since       JDK1.2
duke@1:  */
duke@1: public final class AnyHolder implements  Streamable {
duke@1:     /**
duke@1:      * The <code>Any</code> value held by this <code>AnyHolder</code> object.
duke@1:      */
duke@1: 
duke@1:     public Any value;
duke@1: 
duke@1:     /**
duke@1:      * Constructs a new <code>AnyHolder</code> object with its
duke@1:      * <code>value</code> field initialized to <code>null</code>.
duke@1:      */
duke@1:     public AnyHolder() {
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      * Constructs a new <code>AnyHolder</code> object for the given
duke@1:      * <code>Any</code> object.
duke@1:      * @param initial the <code>Any</code> object with which to initialize
duke@1:      *                the <code>value</code> field of the new
duke@1:      *                <code>AnyHolder</code> object
duke@1:      */
duke@1:     public AnyHolder(Any initial) {
duke@1:         value = initial;
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      * Reads from <code>input</code> and initalizes the value in the Holder
duke@1:      * with the unmarshalled data.
duke@1:      *
duke@1:      * @param input the InputStream containing CDR formatted data from the wire.
duke@1:      */
duke@1:     public void _read(InputStream input) {
duke@1:         value = input.read_any();
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      * Marshals to <code>output</code> the value in
duke@1:      * this <code>AnyHolder</code> object.
duke@1:      *
duke@1:      * @param output the OutputStream which will contain the CDR formatted data.
duke@1:      */
duke@1:     public void _write(OutputStream output) {
duke@1:         output.write_any(value);
duke@1:     }
duke@1: 
duke@1:     /**
duke@1:      * Returns the <code>TypeCode</code> object corresponding to the value
duke@1:      * held in this <code>AnyHolder</code> object.
duke@1:      *
duke@1:      * @return    the TypeCode of the value held in
duke@1:      *              this <code>AnyHolder</code> object
duke@1:      */
duke@1:     public TypeCode _type() {
duke@1:         return ORB.init().get_primitive_tc(TCKind.tk_any);
duke@1:     }
duke@1: }