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Lucene example source code file (TermPositionVector.java)

This example Lucene source code file (TermPositionVector.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

termfreqvector, termfreqvector, termpositionvector, termpositionvector, termvectoroffsetinfo, termvectoroffsetinfo

The Lucene TermPositionVector.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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

/** Extends <code>TermFreqVector to provide additional information about
 *  positions in which each of the terms is found. A TermPositionVector not necessarily
 * contains both positions and offsets, but at least one of these arrays exists.
public interface TermPositionVector extends TermFreqVector {
    /** Returns an array of positions in which the term is found.
     *  Terms are identified by the index at which its number appears in the
     *  term String array obtained from the <code>indexOf method.
     *  May return null if positions have not been stored.
    public int[] getTermPositions(int index);
     * Returns an array of TermVectorOffsetInfo in which the term is found.
     * May return null if offsets have not been stored.
     * @see org.apache.lucene.analysis.Token
     * @param index The position in the array to get the offsets from
     * @return An array of TermVectorOffsetInfo objects or the empty list
    public TermVectorOffsetInfo [] getOffsets(int index);

Other Lucene examples (source code examples)

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