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Commons Collections example source code file (AbstractSortedSetDecorator.java)

This example Commons Collections source code file (AbstractSortedSetDecorator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Collections tags/keywords

abstractsetdecorator, abstractsortedsetdecorator, abstractsortedsetdecorator, comparator, comparator, object, object, sortedset, sortedset, util

The Commons Collections AbstractSortedSetDecorator.java source code

 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
package org.apache.commons.collections.set;

import java.util.Comparator;
import java.util.Set;
import java.util.SortedSet;

 * Decorates another <code>SortedSet to provide additional behaviour.
 * <p>
 * Methods are forwarded directly to the decorated set.
 * @since Commons Collections 3.0
 * @version $Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $
 * @author Stephen Colebourne
public abstract class AbstractSortedSetDecorator extends AbstractSetDecorator implements SortedSet {

     * Constructor only used in deserialization, do not use otherwise.
     * @since Commons Collections 3.1
    protected AbstractSortedSetDecorator() {

     * Constructor that wraps (not copies).
     * @param set  the set to decorate, must not be null
     * @throws IllegalArgumentException if set is null
    protected AbstractSortedSetDecorator(Set set) {

     * Gets the sorted set being decorated.
     * @return the decorated set
    protected SortedSet getSortedSet() {
        return (SortedSet) getCollection();
    public SortedSet subSet(Object fromElement, Object toElement) {
        return getSortedSet().subSet(fromElement, toElement);

    public SortedSet headSet(Object toElement) {
        return getSortedSet().headSet(toElement);

    public SortedSet tailSet(Object fromElement) {
        return getSortedSet().tailSet(fromElement);

    public Object first() {
        return getSortedSet().first();

    public Object last() {
        return getSortedSet().last();

    public Comparator comparator() {
        return getSortedSet().comparator();


Other Commons Collections examples (source code examples)

Here is a short list of links related to this Commons Collections AbstractSortedSetDecorator.java source code file:

my book on functional programming


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