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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/MultiSetUtils.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; import org.apache.commons.collections4.multiset.HashMultiSet; import org.apache.commons.collections4.multiset.PredicatedMultiSet; import org.apache.commons.collections4.multiset.SynchronizedMultiSet; import org.apache.commons.collections4.multiset.UnmodifiableMultiSet; /** * Provides utility methods and decorators for {@link MultiSet} instances. * * @since 4.1 */ public class MultiSetUtils { /** * An empty unmodifiable multiset. */ @SuppressWarnings("rawtypes") // OK, empty multiset is compatible with any type public static final MultiSet EMPTY_MULTISET = UnmodifiableMultiSet.unmodifiableMultiSet(new HashMultiSet<>()); /** * Instantiation of MultiSetUtils is not intended or required. */ private MultiSetUtils() {} //----------------------------------------------------------------------- /** * Returns a synchronized (thread-safe) multiset backed by the given multiset. * In order to guarantee serial access, it is critical that all access to the * backing multiset is accomplished through the returned multiset. * <p> * It is imperative that the user manually synchronize on the returned multiset * when iterating over it: * * <pre> * MultiSet multiset = MultiSetUtils.synchronizedMultiSet(new HashMultiSet()); * ... * synchronized(multiset) { * Iterator i = multiset.iterator(); // Must be in synchronized block * while (i.hasNext()) * foo(i.next()); * } * } * </pre> * * Failure to follow this advice may result in non-deterministic behavior. * * @param <E> the element type * @param multiset the multiset to synchronize, must not be null * @return a synchronized multiset backed by that multiset * @throws NullPointerException if the MultiSet is null */ public static <E> MultiSet<E> synchronizedMultiSet(final MultiSet<E> multiset) { return SynchronizedMultiSet.synchronizedMultiSet(multiset); } /** * Returns an unmodifiable view of the given multiset. Any modification attempts * to the returned multiset will raise an {@link UnsupportedOperationException}. * * @param <E> the element type * @param multiset the multiset whose unmodifiable view is to be returned, must not be null * @return an unmodifiable view of that multiset * @throws NullPointerException if the MultiSet is null */ public static <E> MultiSet<E> unmodifiableMultiSet(final MultiSet<? extends E> multiset) { return UnmodifiableMultiSet.unmodifiableMultiSet(multiset); } /** * Returns a predicated (validating) multiset backed by the given multiset. * <p> * Only objects that pass the test in the given predicate can be added to * the multiset. Trying to add an invalid object results in an * IllegalArgumentException. It is important not to use the original multiset * after invoking this method, as it is a backdoor for adding invalid * objects. * * @param <E> the element type * @param multiset the multiset to predicate, must not be null * @param predicate the predicate for the multiset, must not be null * @return a predicated multiset backed by the given multiset * @throws NullPointerException if the MultiSet or Predicate is null */ public static <E> MultiSet<E> predicatedMultiSet(final MultiSet<E> multiset, final Predicate<? super E> predicate) { return PredicatedMultiSet.predicatedMultiSet(multiset, predicate); } /** * Get an empty <code>MultiSet</code>. * * @param <E> the element type * @return an empty MultiSet */ @SuppressWarnings("unchecked") // OK, empty multiset is compatible with any type public static <E> MultiSet<E> emptyMultiSet() { return EMPTY_MULTISET; } }
⏎ org/apache/commons/collections4/MultiSetUtils.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, 101485👍, 0💬
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