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/*
 * 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.
 */

/**
 * 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 {@link
 * org.apache.lucene.codecs.PostingsWriterBase} to implement the
 * postings.
 * 
 * 
 * See {@link org.apache.lucene.codecs.blocktree.BlockTreeTermsWriter}
 *   for the file format.
 * 
 */
package org.apache.lucene.codecs.blocktree;