/* AccessibleBundle.java -- base class for accessibility "enumerations"
   Copyright (C) 2002, 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.

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permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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package javax.accessibility;

import java.util.Locale;

/**
 * This serves as a base class for accessibility "enumerations".  These
 * objects are strongly typed; to make up for the lack of true enums in Java.
 * Display should be locale dependent.
 *
 * @author Eric Blake (ebb9@email.byu.edu)
 * @see AccessibleRole
 * @see AccessibleState
 * @since 1.2
 * @status updated to 1.4, but missing Locale support
 */
public abstract class AccessibleBundle
{
  /**
   * The locale independent name of the object. This is for the computer, not
   * necessarily for humans; changing it in subclasses is frowned upon.
   *
   * @see #toDisplayString(String, Locale)
   */
  protected String key;

  /**
   * Default constructor.
   */
  public AccessibleBundle()
  {
  }

  /**
   * Obtains the key as a localized string, falling back to the
   * locale-independent version if necessary.
   *
   * @param resourceBundle the resource to use for lookup
   * @param locale the locale to translate to
   * @return the translated name
   * @throws NullPointerException if resourceBundle or locale is null
   * @XXX For now, no transformation is done.
   */
  protected String toDisplayString(String resourceBundle, Locale locale)
  {
    return key;
  }

  /**
   * Obtains the key as a localized string, falling back to the
   * locale-independent version if necessary.
   *
   * @param locale the locale to translate to
   * @return the translated name
   * @throws NullPointerException if locale is null
   * @XXX For now, no transformation is done.
   */
  public String toDisplayString(Locale locale)
  {
    return key;
  }

  /**
   * Obtains the key as a localized string, using the default locale.
   *
   * @return the translated name
   * @XXX For now, no transformation is done.
   */
  public String toDisplayString()
  {
    return toDisplayString(Locale.getDefault());
  }

  /**
   * Obtains the key as a localized string, using the default locale.
   *
   * @return the translated name
   * @XXX For now, no transformation is done.
   */
  public String toString()
  {
    return toDisplayString(Locale.getDefault());
  }
} // class AccessibleBundle