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Lucene example source code file (StringInterner.java)

This example Lucene source code file (StringInterner.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

string, string, stringinterner, stringinterner

The Lucene StringInterner.java source code

package org.apache.lucene.util;
 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

 * Subclasses of StringInterner are required to
 * return the same single String object for all equal strings.
 * Depending on the implementation, this may not be
 * the same object returned as String.intern().
 * This StringInterner base class simply delegates to String.intern().
public class StringInterner {
  /** Returns a single object instance for each equal string. */
  public String intern(String s) {
    return s.intern();

  /** Returns a single object instance for each equal string. */
  public String intern(char[] arr, int offset, int len) {
    return intern(new String(arr, offset, len));

Other Lucene examples (source code examples)

Here is a short list of links related to this Lucene StringInterner.java source code file:

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