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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/bag/TreeBag.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.bag; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.Serializable; import java.util.Collection; import java.util.Comparator; import java.util.SortedMap; import java.util.TreeMap; import org.apache.commons.collections4.SortedBag; /** * Implements {@link SortedBag}, using a {@link TreeMap} to provide the data storage. * This is the standard implementation of a sorted bag. * <p> * Order will be maintained among the bag members and can be viewed through the iterator. * </p> * <p> * A {@link org.apache.commons.collections4.Bag Bag} stores each object in the collection * together with a count of occurrences. Extra methods on the interface allow multiple * copies of an object to be added or removed at once. It is important to read the interface * javadoc carefully as several methods violate the {@link Collection} interface specification. * </p> * * @param <E> the type of elements in this bag * @since 3.0 (previously in main package v2.0) */ public class TreeBag<E> extends AbstractMapBag<E> implements SortedBag<E>, Serializable { /** Serial version lock */ private static final long serialVersionUID = -7740146511091606676L; /** * Constructs an empty {@link TreeBag}. */ public TreeBag() { super(new TreeMap<E, MutableInteger>()); } /** * Constructs an empty bag that maintains order on its unique representative * members according to the given {@link Comparator}. * * @param comparator the comparator to use */ public TreeBag(final Comparator<? super E> comparator) { super(new TreeMap<E, MutableInteger>(comparator)); } /** * Constructs a {@link TreeBag} containing all the members of the * specified collection. * * @param coll the collection to copy into the bag */ public TreeBag(final Collection<? extends E> coll) { this(); addAll(coll); } //----------------------------------------------------------------------- /** * {@inheritDoc} * * @throws IllegalArgumentException if the object to be added does not implement * {@link Comparable} and the {@link TreeBag} is using natural ordering * @throws NullPointerException if the specified key is null and this bag uses * natural ordering, or its comparator does not permit null keys */ @Override public boolean add(final E object) { if(comparator() == null && !(object instanceof Comparable)) { if (object == null) { throw new NullPointerException(); } throw new IllegalArgumentException("Objects of type " + object.getClass() + " cannot be added to " + "a naturally ordered TreeBag as it does not implement Comparable"); } return super.add(object); } //----------------------------------------------------------------------- @Override public E first() { return getMap().firstKey(); } @Override public E last() { return getMap().lastKey(); } @Override public Comparator<? super E> comparator() { return getMap().comparator(); } @Override protected SortedMap<E, AbstractMapBag.MutableInteger> getMap() { return (SortedMap<E, AbstractMapBag.MutableInteger>) super.getMap(); } //----------------------------------------------------------------------- /** * Write the bag out using a custom routine. * * @param out the output stream * @throws IOException if an error occurs while writing to the stream */ private void writeObject(final ObjectOutputStream out) throws IOException { out.defaultWriteObject(); out.writeObject(comparator()); super.doWriteObject(out); } /** * Read the bag in using a custom routine. * * @param in the input stream * @throws IOException if an error occurs while reading from the stream * @throws ClassNotFoundException if an object read from the stream can not be loaded */ private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException { in.defaultReadObject(); @SuppressWarnings("unchecked") // This will fail at runtime if the stream is incorrect final Comparator<? super E> comp = (Comparator<? super E>) in.readObject(); super.doReadObject(new TreeMap<E, MutableInteger>(comp), in); } }
⏎ org/apache/commons/collections4/bag/TreeBag.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, 113808👍, 0💬
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