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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/trie/PatriciaTrie.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.trie; import java.util.Map; import org.apache.commons.collections4.trie.analyzer.StringKeyAnalyzer; /** * Implementation of a PATRICIA Trie (Practical Algorithm to Retrieve Information * Coded in Alphanumeric). * <p> * A PATRICIA {@link org.apache.commons.collections4.Trie} is a compressed * {@link org.apache.commons.collections4.Trie}. Instead of storing * all data at the edges of the {@link org.apache.commons.collections4.Trie} * (and having empty internal nodes), PATRICIA stores data in every node. * This allows for very efficient traversal, insert, delete, predecessor, * successor, prefix, range, and {@link #select(Object)} * operations. All operations are performed at worst in O(K) time, where K * is the number of bits in the largest item in the tree. In practice, * operations actually take O(A(K)) time, where A(K) is the average number of * bits of all items in the tree. * </p> * <p> * Most importantly, PATRICIA requires very few comparisons to keys while * doing any operation. While performing a lookup, each comparison (at most * K of them, described above) will perform a single bit comparison against * the given key, instead of comparing the entire key to another key. * </p> * <p> * The {@link org.apache.commons.collections4.Trie} can return operations in * lexicographical order using the 'prefixMap', 'submap', or 'iterator' methods. * The {@link org.apache.commons.collections4.Trie} can also * scan for items that are 'bitwise' (using an XOR metric) by the 'select' method. * Bitwise closeness is determined by the {@link KeyAnalyzer} returning true or * false for a bit being set or not in a given key. * </p> * <p> * This PATRICIA {@link org.apache.commons.collections4.Trie} supports both variable * length & fixed length keys. Some methods, such as {@link #prefixMap(Object)} * are suited only to variable length keys. * </p> * * @param <E> the type of the values in this map * * @see <a href="http://en.wikipedia.org/wiki/Radix_tree">Radix Tree</a> * @see <a href="http://www.csse.monash.edu.au/~lloyd/tildeAlgDS/Tree/PATRICIA">PATRICIA</a> * @see <a href="http://www.imperialviolet.org/binary/critbit.pdf">Crit-Bit Tree</a> * @since 4.0 */ public class PatriciaTrie<E> extends AbstractPatriciaTrie<String, E> { private static final long serialVersionUID = 4446367780901817838L; public PatriciaTrie() { super(new StringKeyAnalyzer()); } public PatriciaTrie(final Map<? extends String, ? extends E> m) { super(new StringKeyAnalyzer(), m); } }
⏎ org/apache/commons/collections4/trie/PatriciaTrie.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, 101839👍, 0💬
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