/* * 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. */ /** * This package contains implementations of the * {@link java.util.Collection Collection} interface. * <p> * The following implementations are provided in the package: * <ul> * <li>CompositeCollection - a collection that combines multiple collections into one * </ul> * The following decorators are provided in the package: * <ul> * <li>Synchronized - synchronizes method access for multi-threaded environments * <li>Unmodifiable - ensures the collection cannot be altered * <li>Predicated - ensures that only elements that are valid according to a predicate can be added * <li>Transformed - transforms elements as they are added * <li>Indexed - provides a map-like view onto another collection * </ul> * * @version $Id$ */ package org.apache.commons.collections4.collection;