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+/* ListResourceBundle -- a resource bundle build around a list
+   Copyright (C) 1998, 1999, 2001, 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
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.util;
+
+/**
+ * A <code>ListResouceBundle</code> provides an easy way, to create your own
+ * resource bundle. It is an abstract class that you can subclass. You should
+ * then overwrite the getContents method, that provides a key/value list.
+ *
+ * <p>The key/value list is a two dimensional list of Object.  The first
+ * dimension ranges over the resources. The second dimension ranges from
+ * zero (key) to one (value). The keys must be of type String, and they are
+ * case-sensitive. For example:
+ *
+<br><pre>public class MyResources
+  extends ListResourceBundle
+{
+  public Object[][] getContents()
+  {
+    return contents;
+  }
+
+  static final Object[][] contents =
+  {
+    // LOCALIZED STRINGS
+    {"s1", "The disk \"{1}\" contains {0}."},  // MessageFormat pattern
+    {"s2", "1"},                       // location of {0} in pattern
+    {"s3", "My Disk"},                 // sample disk name
+    {"s4", "no files"},                // first ChoiceFormat choice
+    {"s5", "one file"},                // second ChoiceFormat choice
+    {"s6", "{0,number} files"}         // third ChoiceFormat choice
+    {"s7", "3 Mar 96"},                // sample date
+    {"s8", new Dimension(1,5)}         // real object, not just string
+    // END OF LOCALIZED MATERIAL
+  };
+}</pre>
+ *
+ * @author Jochen Hoenicke
+ * @author Eric Blake (ebb9@email.byu.edu)
+ * @see Locale
+ * @see PropertyResourceBundle
+ * @since 1.1
+ * @status updated to 1.4
+ */
+public abstract class ListResourceBundle extends ResourceBundle
+{
+  /**
+   * The constructor. It does nothing special.
+   */
+  public ListResourceBundle()
+  {
+  }
+
+  /**
+   * Gets a resource for a given key. This is called by <code>getObject</code>.
+   *
+   * @param key the key of the resource
+   * @return the resource for the key, or null if it doesn't exist
+   */
+  public final Object handleGetObject(String key)
+  {
+    Object[][] contents = getContents();
+    int i = contents.length;
+    while (--i >= 0)
+      if (key.equals(contents[i][0]))
+        return contents[i][1];
+    return null;
+  }
+
+  /**
+   * This method should return all keys for which a resource exists.
+   *
+   * @return an enumeration of the keys
+   */
+  public Enumeration getKeys()
+  {
+    // We make a new Set that holds all the keys, then return an enumeration
+    // for that. This prevents modifications from ruining the enumeration,
+    // as well as ignoring duplicates.
+    final Object[][] contents = getContents();
+    Set s = new HashSet();
+    int i = contents.length;
+    while (--i >= 0)
+      s.add(contents[i][0]);
+    ResourceBundle bundle = parent;
+    // Eliminate tail recursion.
+    while (bundle != null)
+      {
+        Enumeration e = bundle.getKeys();
+        while (e.hasMoreElements())
+          s.add(e.nextElement());
+        bundle = bundle.parent;
+      }
+    return Collections.enumeration(s);
+  }
+
+  /**
+   * Gets the key/value list. You must override this method, and should not
+   * provide duplicate keys or null entries.
+   *
+   * @return a two dimensional list of String key / Object resouce pairs
+   */
+  protected abstract Object[][] getContents();
+} // class ListResourceBundle