gcc/libjava/classpath/org/omg/CORBA/VisibilityHelper.java

/* VisibilityHelper.java --
   Copyright (C) 2005 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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02110-1301 USA.

Linking this library statically or dynamically with other modules is
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permission to link this library with independent modules to produce an
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package org.omg.CORBA;

import gnu.CORBA.Restricted_ORB;

import org.omg.CORBA.portable.InputStream;
import org.omg.CORBA.portable.OutputStream;

/**
 * A helper operations for a Visibility that is mapped into java and CORBA
 * <code>short</code>. The Visibility normally takes one of the two values,
 * {@link PUBLIC_MEMBER#value} or {@link PRIVATE_MEMBER#value}.
 *
 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
 */
public abstract class VisibilityHelper
{
  /**
   * The cached typecode value, computed only once.
   */
  private static TypeCode typeCode;

  /**
   * Insert the Visibility into the given Any.
   * Uses {@link Any.insert_short}.
   */
  public static void insert(Any any, short that)
  {
    any.insert_short(that);
  }

  /**
   * Extract the Visibility from the given Any.
   * Uses {@link Any.extract_short}.
   */
  public static short extract(Any any)
  {
    return any.extract_short();
  }

  /**
   * Return an alias of short, named "Visibility".
   */
  public static TypeCode type()
  {
    if (typeCode == null)
      {
        TypeCode tshort =
          Restricted_ORB.Singleton.get_primitive_tc(TCKind.tk_short);
        typeCode =
          Restricted_ORB.Singleton.create_alias_tc(id(), "Visibility", tshort);
      }
    return typeCode;
  }

  /**
   * Get the Visibility repository id.
   *
   * @return "IDL:omg.org/CORBA/Visibility:1.0", always.
   */
  public static String id()
  {
    return "IDL:omg.org/CORBA/Visibility:1.0";
  }

  /**
   * Read the visibility value (as short) from the CDR intput stream.
   *
   * Uses {@link InputStream.read_short()}.
   *
   * @param istream a stream to read from.
   */
  public static short read(InputStream istream)
  {
    return istream.read_short();
  }

  /**
   * Write the visibility value (as short) to the CDR output stream.
   *
   * USes {@link OutputStream.write_short(short)}.
   *
   * @param ostream a stream to write into.
   * @param value a value to write.
   */
  public static void write(OutputStream ostream, short value)
  {
    ostream.write_short(value);
  }
}