home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Lucene example source code file (FSLockFactory.java)

This example Lucene source code file (FSLockFactory.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

file, file, fslockfactory, fslockfactory, illegalstateexception, io, lockfactory, lockfactory, you, you

The Lucene FSLockFactory.java source code

package org.apache.lucene.store;

 * 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.

import java.io.File;

 * Base class for file system based locking implementation.

public abstract class FSLockFactory extends LockFactory {

   * Directory for the lock files.
  protected File lockDir = null;

   * Set the lock directory. This method can be only called
   * once to initialize the lock directory. It is used by {@link FSDirectory}
   * to set the lock directory to itself.
   * Subclasses can also use this method to set the directory
   * in the constructor.
  protected final void setLockDir(File lockDir) {
    if (this.lockDir != null)
      throw new IllegalStateException("You can set the lock directory for this factory only once.");
    this.lockDir = lockDir;
   * Retrieve the lock directory.
  public File getLockDir() {
    return lockDir;


Other Lucene examples (source code examples)

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

my book on functional programming


new blog posts


Copyright 1998-2019 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.