rawpostinglist.java

来自「lucene-2.4.0 是一个全文收索的工具包」· Java 代码 · 共 37 行

package org.apache.lucene.index;

/**
 * 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.
 */


/** This is the base class for an in-memory posting list,
 *  keyed by a Token.  {@link TermsHash} maintains a hash
 *  table holding one instance of this per unique Token.
 *  Consumers of TermsHash (@link TermsHashConsumer} must
 *  subclass this class with its own concrete class.
 *  {@link FreqProxTermsWriter.RawPostingList} is the
 *  subclass used for the freq/prox postings, and {@link
 *  TermVectorsTermsWriter.PostingList} is the subclass
 *  used to hold TermVectors postings. */

abstract class RawPostingList {
  final static int BYTES_SIZE = DocumentsWriter.OBJECT_HEADER_BYTES + 3*DocumentsWriter.INT_NUM_BYTE;
  int textStart;
  int intStart;
  int byteStart;
}