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Collections:
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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/iterators/LoopingIterator.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.iterators; import java.util.Collection; import java.util.Iterator; import java.util.NoSuchElementException; import org.apache.commons.collections4.ResettableIterator; /** * An Iterator that restarts when it reaches the end. * <p> * The iterator will loop continuously around the provided elements, unless * there are no elements in the collection to begin with, or all the elements * have been {@link #remove removed}. * <p> * Concurrent modifications are not directly supported, and for most collection * implementations will throw a ConcurrentModificationException. * * @since 3.0 */ public class LoopingIterator<E> implements ResettableIterator<E> { /** The collection to base the iterator on */ private final Collection<? extends E> collection; /** The current iterator */ private Iterator<? extends E> iterator; /** * Constructor that wraps a collection. * <p> * There is no way to reset an Iterator instance without recreating it from * the original source, so the Collection must be passed in. * * @param coll the collection to wrap * @throws NullPointerException if the collection is null */ public LoopingIterator(final Collection<? extends E> coll) { if (coll == null) { throw new NullPointerException("The collection must not be null"); } collection = coll; reset(); } /** * Has the iterator any more elements. * <p> * Returns false only if the collection originally had zero elements, or * all the elements have been {@link #remove removed}. * * @return <code>true</code> if there are more elements */ @Override public boolean hasNext() { return collection.size() > 0; } /** * Returns the next object in the collection. * <p> * If at the end of the collection, return the first element. * * @return the next object * @throws NoSuchElementException if there are no elements * at all. Use {@link #hasNext} to avoid this error. */ @Override public E next() { if (collection.size() == 0) { throw new NoSuchElementException("There are no elements for this iterator to loop on"); } if (iterator.hasNext() == false) { reset(); } return iterator.next(); } /** * Removes the previously retrieved item from the underlying collection. * <p> * This feature is only supported if the underlying collection's * {@link Collection#iterator iterator} method returns an implementation * that supports it. * <p> * This method can only be called after at least one {@link #next} method call. * After a removal, the remove method may not be called again until another * next has been performed. If the {@link #reset} is called, then remove may * not be called until {@link #next} is called again. */ @Override public void remove() { iterator.remove(); } /** * Resets the iterator back to the start of the collection. */ @Override public void reset() { iterator = collection.iterator(); } /** * Gets the size of the collection underlying the iterator. * * @return the current collection size */ public int size() { return collection.size(); } }
⏎ org/apache/commons/collections4/iterators/LoopingIterator.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, 113485👍, 0💬
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