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110 lines
2.8 KiB
110 lines
2.8 KiB
/*
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* Copyright (c) 1995, 2001, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package org.omg.CORBA;
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import org.omg.CORBA.portable.Streamable;
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import org.omg.CORBA.portable.InputStream;
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import org.omg.CORBA.portable.OutputStream;
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/**
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* The Holder for <tt>Double</tt>. For more information on
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* Holder files, see <a href="doc-files/generatedfiles.html#holder">
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* "Generated Files: Holder Files"</a>.<P>
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* A Holder class for a <code>double</code>
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* that is used to store "out" and "inout" parameters in IDL methods.
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* If an IDL method signature has an IDL <code>double</code> as an "out"
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* or "inout" parameter, the programmer must pass an instance of
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* <code>DoubleHolder</code> as the corresponding
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* parameter in the method invocation; for "inout" parameters, the programmer
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* must also fill the "in" value to be sent to the server.
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* Before the method invocation returns, the ORB will fill in the
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* value corresponding to the "out" value returned from the server.
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* <P>
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* If <code>myDoubleHolder</code> is an instance of <code>DoubleHolder</code>,
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* the value stored in its <code>value</code> field can be accessed with
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* <code>myDoubleHolder.value</code>.
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*
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* @since JDK1.2
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*/
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public final class DoubleHolder implements Streamable {
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/**
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* The <code>double</code> value held by this <code>DoubleHolder</code>
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* object.
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*/
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public double value;
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/**
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* Constructs a new <code>DoubleHolder</code> object with its
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* <code>value</code> field initialized to 0.0.
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*/
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public DoubleHolder() {
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}
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/**
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* Constructs a new <code>DoubleHolder</code> object for the given
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* <code>double</code>.
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* @param initial the <code>double</code> with which to initialize
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* the <code>value</code> field of the new
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* <code>DoubleHolder</code> object
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*/
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public DoubleHolder(double initial) {
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value = initial;
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}
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/**
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* Read a double value from the input stream and store it in the
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* value member.
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*
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* @param input the <code>InputStream</code> to read from.
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*/
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public void _read(InputStream input) {
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value = input.read_double();
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}
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/**
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* Write the double value stored in this holder to an
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* <code>OutputStream</code>.
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*
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* @param output the <code>OutputStream</code> to write into.
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*/
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public void _write(OutputStream output) {
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output.write_double(value);
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}
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/**
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* Return the <code>TypeCode</code> of this holder object.
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*
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* @return the <code>TypeCode</code> object.
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*/
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public org.omg.CORBA.TypeCode _type() {
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return ORB.init().get_primitive_tc(TCKind.tk_double);
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}
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}
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