/*
* JBoss, Home of Professional Open Source
* Copyright 2010 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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*/
/**
* Lucene's IndexWriter instances are threadsafe but you can have only one open on the index, so when opening an IndexWriter an
* index-wide lock needs to be acquired. When using Infinispan this lock needs reliable distribution, so two implementations
* are provided which where tested with the Infinispan Directory and are suited for distributed locking, but you could provide your own implementation of LockFactory.
* You might also disable the locking altogether if you have application level or other external guarantees that no two IndexWriters
* will ever be opened.
*/
package org.infinispan.lucene.locking;