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Lucene example source code file (TermsHashConsumerPerField.java)

This example Lucene source code file (TermsHashConsumerPerField.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

io, ioexception, ioexception, parallelpostingsarray, parallelpostingsarray, termshashconsumerperfield, termshashconsumerperfield

The Lucene TermsHashConsumerPerField.java source code

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.
 */

/** Implement this class to plug into the TermsHash
 *  processor, which inverts & stores Tokens into a hash
 *  table and provides an API for writing bytes into
 *  multiple streams for each unique Token. */

import java.io.IOException;

import org.apache.lucene.document.Fieldable;

abstract class TermsHashConsumerPerField {
  abstract boolean start(Fieldable[] fields, int count) throws IOException;
  abstract void finish() throws IOException;
  abstract void skippingLongTerm() throws IOException;
  abstract void start(Fieldable field);
  abstract void newTerm(int termID) throws IOException;
  abstract void addTerm(int termID) throws IOException;
  abstract int getStreamCount();

  abstract ParallelPostingsArray createPostingsArray(int size);
}

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