/*
 * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/UnmodifiableSortedMap.java,v 1.2 2003/08/31 17:24:46 scolebourne Exp $
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowledgement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgement may appear in the software itself,
 *    if and wherever such third-party acknowledgements normally appear.
 *
 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package org.apache.commons.collections.decorators;

import java.util.Comparator;
import java.util.Map;
import java.util.SortedMap;

/**
 * <code>UnmodifiableSortedMap</code> decorates another <code>SortedMap</code>
 * to ensure it can't be altered.
 *
 * @since Commons Collections 3.0
 * @version $Revision: 1.2 $ $Date: 2003/08/31 17:24:46 $
 * 
 * @author Stephen Colebourne
 */
public class UnmodifiableSortedMap extends UnmodifiableMap implements SortedMap {

    /**
     * Factory method to create an unmodifiable sorted map.
     * 
     * @param map  the map to decorate, must not be null
     * @throws IllegalArgumentException if map is null
     */
    public static SortedMap decorate(SortedMap map) {
        return new UnmodifiableSortedMap(map);
    }

    /**
     * Constructor that wraps (not copies).
     * 
     * @param map  the map to decorate, must not be null
     * @throws IllegalArgumentException if map is null
     */
    protected UnmodifiableSortedMap(Map map) {
        super(map);
    }

    /**
     * Gets the map being decorated.
     * 
     * @return the decorated map
     */
    protected SortedMap getSortedMap() {
        return (SortedMap) map;
    }

    //-----------------------------------------------------------------------
    public Object firstKey() {
        return getSortedMap().firstKey();
    }

    public Object lastKey() {
        return getSortedMap().lastKey();
    }

    public Comparator comparator() {
        return getSortedMap().comparator();
    }

    public SortedMap subMap(Object fromKey, Object toKey) {
        SortedMap map = getSortedMap().subMap(fromKey, toKey);
        return new UnmodifiableSortedMap(getSortedMap());
    }

    public SortedMap headMap(Object toKey) {
        SortedMap map = getSortedMap().headMap(toKey);
        return new UnmodifiableSortedMap(getSortedMap());
    }

    public SortedMap tailMap(Object fromKey) {
        SortedMap map = getSortedMap().tailMap(fromKey);
        return new UnmodifiableSortedMap(getSortedMap());
    }

}

@@ -188,29 +188,29 @@
 v 1.
-2
+3
  2003/
-08/31 17:24:46
+10/29 23:49:18
  sco
@@ -3201,17 +3201,17 @@
 sion: 1.
-2
+3
  $ $Date
@@ -3221,22 +3221,22 @@
 003/
-08/31 17:24:46
+10/29 23:49:18
  $%0A 
@@ -4571,38 +4571,27 @@
 leSortedMap(
-getSortedMap()
+map
 );%0A    %7D%0A%0A  
@@ -4725,38 +4725,27 @@
 leSortedMap(
-getSortedMap()
+map
 );%0A    %7D%0A%0A  
@@ -4887,30 +4887,19 @@
 rtedMap(
-getSortedMap()
+map
 );%0A    %7D

Fix problem where views were being incorrectly created