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Liferay SAML OpenSAML Integration
/*
* 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;
import java.util.Comparator;
/**
* Defines a type of Bag
that maintains a sorted order among
* its unique representative members.
*
* @since Commons Collections 2.0
* @version $Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $
*
* @author Chuck Burdick
*/
public interface SortedBag extends Bag {
/**
* Returns the comparator associated with this sorted set, or null
* if it uses its elements' natural ordering.
*
* @return the comparator in use, or null if natural ordering
*/
public Comparator comparator();
/**
* Returns the first (lowest) member.
*
* @return the first element in the sorted bag
*/
public Object first();
/**
* Returns the last (highest) member.
*
* @return the last element in the sorted bag
*/
public Object last();
}