001/* ContextList.java --
002   Copyright (C) 2005 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038
039package org.omg.CORBA;
040
041
042/**
043 * Stores a modifiable list of String objects representing the property names.
044 * The property values are normally stored in the {@link Context }.
045 *
046 * The context list is created by invoking {@link ORB#create_context_list()}.
047 *
048 * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
049 */
050public abstract class ContextList
051{
052  /**
053   * Add a name object
054   * @param name a name to add.
055   */
056  public abstract void add(String name);
057
058  /**
059   * Return the number of stored names
060   *
061   * @return a number of names.
062   */
063  public abstract int count();
064
065  /**
066   * Return the name at the given index.
067   *
068   * @param at the index
069   * @return the name at the given index
070   *
071   * @throws Bounds if the index is out of bounds.
072   */
073  public abstract String item(int at)
074                       throws Bounds;
075
076  /**
077   * Remove the name at the given index.
078   *
079   * @param at the index
080   *
081   * @throws Bounds if the index is out of bounds.
082   */
083  public abstract void remove(int at)
084                       throws Bounds;
085}