src.it.unimi.dsi.big.mg4j.index.cluster.DocumentalConcatenatedCluster Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of mg4j-big Show documentation

MG4J (Managing Gigabytes for Java) is a free full-text search engine for large document collections written in Java. The big version is a fork of the original MG4J that can handle more than 2^31 terms and documents.

The newest version!

package it.unimi.dsi.big.mg4j.index.cluster;

/*		 
 * MG4J: Managing Gigabytes for Java (big)
 *
 * Copyright (C) 2006-2011 Sebastiano Vigna 
 *
 *  This library 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 3 of the License, or (at your option)
 *  any later version.
 *
 *  This library 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 program; if not, see .
 *
 */

import it.unimi.dsi.fastutil.ints.IntBigList;
import it.unimi.dsi.big.mg4j.index.Index;
import it.unimi.dsi.big.mg4j.index.TermProcessor;
import it.unimi.dsi.big.mg4j.index.payload.Payload;
import it.unimi.dsi.util.Properties;

/** A {@link it.unimi.dsi.big.mg4j.index.cluster.DocumentalCluster} that concatenates the
 * postings of its local indices. 
 *
 * This class assumes that the global document pointers returned by each index will be increasing.
 * Using this assumption, no merge is performed; simply, when an index iterator is exhausted we look
 * into the next one.
 * 
 * @author Alessandro Arrabito
 * @author Sebastiano Vigna
 */

public class DocumentalConcatenatedCluster extends DocumentalCluster {
	private static final long serialVersionUID = 1L;
	
	public DocumentalConcatenatedCluster( final Index[] localIndex, final DocumentalClusteringStrategy strategy, final boolean flat, final it.unimi.dsi.util.BloomFilter[] termFilter, final int numberOfDocuments, final int numberOfTerms, 
			final long numberOfPostings, final long numberOfOccurences, final int maxCount, final Payload payload, final boolean hasCounts, final boolean hasPositions,
			final TermProcessor termProcessor, final String field, final IntBigList sizes, final Properties properties ) {
		super( localIndex, strategy, flat, termFilter, numberOfDocuments, numberOfTerms, numberOfPostings, numberOfOccurences, maxCount, payload, hasCounts, hasPositions, termProcessor, field, sizes, properties );
	}
}