package org.apache.lucene.codecs.cheapbastard;
/*
* 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.
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import org.apache.lucene.codecs.DocValuesFormat;
import org.apache.lucene.codecs.FilterCodec;
import org.apache.lucene.codecs.NormsFormat;
import org.apache.lucene.codecs.PostingsFormat;
import org.apache.lucene.codecs.StoredFieldsFormat;
import org.apache.lucene.codecs.TermVectorsFormat;
import org.apache.lucene.codecs.diskdv.DiskDocValuesFormat;
import org.apache.lucene.codecs.diskdv.DiskNormsFormat;
import org.apache.lucene.codecs.lucene40.Lucene40StoredFieldsFormat;
import org.apache.lucene.codecs.lucene40.Lucene40TermVectorsFormat;
import org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat;
import org.apache.lucene.codecs.lucene45.Lucene45Codec;
/** Codec that tries to use as little ram as possible because he spent all his money on beer */
// TODO: better name :)
// but if we named it "LowMemory" in codecs/ package, it would be irresistible like optimize()!
public class CheapBastardCodec extends FilterCodec {
// TODO: would be better to have no terms index at all and bsearch a terms dict
private final PostingsFormat postings = new Lucene41PostingsFormat(100, 200);
// uncompressing versions, waste lots of disk but no ram
private final StoredFieldsFormat storedFields = new Lucene40StoredFieldsFormat();
private final TermVectorsFormat termVectors = new Lucene40TermVectorsFormat();
// these go to disk for all docvalues/norms datastructures
private final DocValuesFormat docValues = new DiskDocValuesFormat();
private final NormsFormat norms = new DiskNormsFormat();
public CheapBastardCodec() {
super("CheapBastard", new Lucene45Codec());
}
public PostingsFormat postingsFormat() {
return postings;
}
@Override
public DocValuesFormat docValuesFormat() {
return docValues;
}
@Override
public NormsFormat normsFormat() {
return norms;
}
@Override
public StoredFieldsFormat storedFieldsFormat() {
return storedFields;
}
@Override
public TermVectorsFormat termVectorsFormat() {
return termVectors;
}
}