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Lucene example source code file (StringHelper.java)
The Lucene StringHelper.java source codepackage org.apache.lucene.util; import java.util.Comparator; import java.util.StringTokenizer; /** * 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. */ /** * Methods for manipulating strings. * * @lucene.internal */ public abstract class StringHelper { /** * Expert: * The StringInterner implementation used by Lucene. * This shouldn't be changed to an incompatible implementation after other Lucene APIs have been used. */ public static StringInterner interner = new SimpleStringInterner(1024,8); /** Return the same string object for all equal strings */ public static String intern(String s) { return interner.intern(s); } /** * Compares two byte[] arrays, element by element, and returns the * number of elements common to both arrays. * * @param bytes1 The first byte[] to compare * @param bytes2 The second byte[] to compare * @return The number of common elements. */ public static final int bytesDifference(byte[] bytes1, int len1, byte[] bytes2, int len2) { int len = len1 < len2 ? len1 : len2; for (int i = 0; i < len; i++) if (bytes1[i] != bytes2[i]) return i; return len; } private StringHelper() { } /** * @return a Comparator over versioned strings such as X.YY.Z * @lucene.internal */ public static Comparator<String> getVersionComparator() { return versionComparator; } private static Comparator<String> versionComparator = new Comparator Other Lucene examples (source code examples)Here is a short list of links related to this Lucene StringHelper.java source code file: |
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