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jeremybenn |
/* ParameterMode.java --
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Copyright (C) 2005, 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package org.omg.CORBA;
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import org.omg.CORBA.portable.IDLEntity;
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import java.io.Serializable;
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/**
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* Defines the parameter modes (the ways in that a method parameter
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* is used during invocation).
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*
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* In CORBA, a method parameter can pass the value (PARAM_IN),
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* be used as a placeholder to return the value (PARAM_OUT) or
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* both pass the data and be used as a placeholder to return the
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* changed value (PARAM_INOUT).
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class ParameterMode
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implements Serializable, IDLEntity
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{
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/**
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* Use serialVersionUID (v1.4) for interoperability.
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*/
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private static final long serialVersionUID = 1521598391932998229L;
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/**
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* This value means that the parameter is an IN parameter.
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*/
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public static final int _PARAM_IN = 0;
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/**
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* This value means that the parameter is an OUT parameter.
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*/
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public static final int _PARAM_OUT = 1;
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/**
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* This value means that the parameter is an INOUT parameter.
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*/
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public static final int _PARAM_INOUT = 2;
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/**
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* This value means that the parameter is an IN parameter.
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*/
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public static final ParameterMode PARAM_IN = new ParameterMode(_PARAM_IN);
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/**
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* This value means that the parameter is an OUT parameter.
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*/
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public static final ParameterMode PARAM_OUT = new ParameterMode(_PARAM_OUT);
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/**
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* This value means that the parameter is an INOUT parameter.
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*/
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public static final ParameterMode PARAM_INOUT = new ParameterMode(_PARAM_INOUT);
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/**
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* The value of this parameter mode instance.
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*/
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private final int value;
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/**
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* The conversion table.
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*/
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private static final ParameterMode[] table =
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new ParameterMode[] { PARAM_IN, PARAM_OUT, PARAM_INOUT };
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/**
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* Create an instance of the parameter mode with the given value.
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*/
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protected ParameterMode(int a_value)
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{
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value = a_value;
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}
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/**
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* Return the integer value code for the given parameter mode.
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*
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* @return 0 for PARAM_IN, 1 for PARAM_OUT, 3 for PARAM_INOUT.
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*/
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public int value()
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{
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return value;
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}
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/**
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* Get a parameter mode instance for the integer parameter mode code.
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*
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* @param p_mode a parameter mode (0..2).
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*
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* @return a corresponding parameter mode instance.
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*
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* @throws BAD_PARAM for the invalid parameter mode code.
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*/
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public static ParameterMode from_int(int p_mode)
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{
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try
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{
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return table [ p_mode ];
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}
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catch (ArrayIndexOutOfBoundsException ex)
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{
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throw new BAD_PARAM("Invalid parameter mode: " + p_mode);
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}
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}
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}
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