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commons-collections4-4.4-sources.jar - Apache Commons Collections
commons-collections4-4.4-sources.jar is the source JAR file for Apache Commons Collections 4.2, which provides additional collection handling functionalities on top of JDK library.
JAR File Size and Download Location:
JAR name: commons-collections4-4.4-sources.jar Target JDK version: 8 Dependency: None File size: 715,541 bytes Release date: 05-Jul-2019 Download: Apache Commons Collections
✍: FYIcenter.com
⏎ org/apache/commons/collections4/bidimap/DualHashBidiMap.java
/* * 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.collections4.bidimap; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.Serializable; import java.util.HashMap; import java.util.Map; import org.apache.commons.collections4.BidiMap; /** * Implementation of {@link BidiMap} that uses two {@link HashMap} instances. * <p> * Two {@link HashMap} instances are used in this class. * This provides fast lookups at the expense of storing two sets of map entries. * Commons Collections would welcome the addition of a direct hash-based * implementation of the {@link BidiMap} interface. * </p> * <p> * NOTE: From Commons Collections 3.1, all subclasses will use {@link HashMap} * and the flawed <code>createMap</code> method is ignored. * </p> * * @param <K> the type of the keys in the map * @param <V> the type of the values in the map * * @since 3.0 */ public class DualHashBidiMap<K, V> extends AbstractDualBidiMap<K, V> implements Serializable { /** Ensure serialization compatibility */ private static final long serialVersionUID = 721969328361808L; /** * Creates an empty <code>HashBidiMap</code>. */ public DualHashBidiMap() { super(new HashMap<K, V>(), new HashMap<V, K>()); } /** * Constructs a <code>HashBidiMap</code> and copies the mappings from * specified <code>Map</code>. * * @param map the map whose mappings are to be placed in this map */ public DualHashBidiMap(final Map<? extends K, ? extends V> map) { super(new HashMap<K, V>(), new HashMap<V, K>()); putAll(map); } /** * Constructs a <code>HashBidiMap</code> that decorates the specified maps. * * @param normalMap the normal direction map * @param reverseMap the reverse direction map * @param inverseBidiMap the inverse BidiMap */ protected DualHashBidiMap(final Map<K, V> normalMap, final Map<V, K> reverseMap, final BidiMap<V, K> inverseBidiMap) { super(normalMap, reverseMap, inverseBidiMap); } /** * Creates a new instance of this object. * * @param normalMap the normal direction map * @param reverseMap the reverse direction map * @param inverseBidiMap the inverse BidiMap * @return new bidi map */ @Override protected BidiMap<V, K> createBidiMap(final Map<V, K> normalMap, final Map<K, V> reverseMap, final BidiMap<K, V> inverseBidiMap) { return new DualHashBidiMap<>(normalMap, reverseMap, inverseBidiMap); } // Serialization //----------------------------------------------------------------------- private void writeObject(final ObjectOutputStream out) throws IOException { out.defaultWriteObject(); out.writeObject(normalMap); } private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException { in.defaultReadObject(); normalMap = new HashMap<>(); reverseMap = new HashMap<>(); @SuppressWarnings("unchecked") // will fail at runtime if stream is incorrect final Map<K, V> map = (Map<K, V>) in.readObject(); putAll(map); } }
⏎ org/apache/commons/collections4/bidimap/DualHashBidiMap.java
Or download all of them as a single archive file:
File name: commons-collections4-4.4-sources.jar File size: 715541 bytes Release date: 2019-07-05 Download
⇒ Download and Install commons-collections4-4.2-bin.zip
⇐ What Is commons-collections4-4.4.jar
2020-12-15, 101861👍, 0💬
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