/*
 * 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
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BlockTree terms dictionary.
 This terms dictionary organizes all terms into blocks according to shared prefix, such that each block has enough terms, and then stores the prefix trie in memory as an FST as the index structure. It allows you to plug in your own PostingsWriterBase to implement the postings. 
See BlockTreeTermsWriter for the file format. 
/**
 * BlockTree terms dictionary.
 * 
 * <p>
 * This terms dictionary organizes all terms into blocks according to
 * shared prefix, such that each block has enough terms, and then stores
 * the prefix trie in memory as an FST as the index structure.  It allows
 * you to plug in your own {@link
 * org.apache.lucene.codecs.PostingsWriterBase} to implement the
 * postings.
 * </p>
 * 
 * <p>See {@link org.apache.lucene.codecs.blocktree.BlockTreeTermsWriter}
 *   for the file format.
 * </p>
 */
package org.apache.lucene.codecs.blocktree;