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Lucene example source code file (SpanFilterResult.java)

This example Lucene source code file (SpanFilterResult.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

arraylist, docidset, docidset, list, list, positioninfo, positioninfo, spanfilterresult, startend, startend, util

The Lucene SpanFilterResult.java source code

package org.apache.lucene.search;
/**
 * Copyright 2005 The Apache Software Foundation
 *
 * Licensed 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.
 */

import java.util.ArrayList;

import java.util.List;


/**
 *  The results of a SpanQueryFilter.  Wraps the BitSet and the position information from the SpanQuery
 *
 * @lucene.experimental 
 *
 **/
public class SpanFilterResult {
  private DocIdSet docIdSet;
  private List<PositionInfo> positions;//Spans spans;
  
  /**
  *
  * @param docIdSet The DocIdSet for the Filter
  * @param positions A List of {@link org.apache.lucene.search.SpanFilterResult.PositionInfo} objects
  */
  public SpanFilterResult(DocIdSet docIdSet, List<PositionInfo> positions) {
    this.docIdSet = docIdSet;
    this.positions = positions;
  }
  
  /**
   * The first entry in the array corresponds to the first "on" bit.
   * Entries are increasing by document order
   * @return A List of PositionInfo objects
   */
  public List<PositionInfo> getPositions() {
    return positions;
  }

  /** Returns the docIdSet */
  public DocIdSet getDocIdSet() {
    return docIdSet;
  }

  public static class PositionInfo {
    private int doc;
    private List<StartEnd> positions;


    public PositionInfo(int doc) {
      this.doc = doc;
      positions = new ArrayList<StartEnd>();
    }

    public void addPosition(int start, int end)
    {
      positions.add(new StartEnd(start, end));
    }

    public int getDoc() {
      return doc;
    }

    /**
     *
     * @return Positions
     */
    public List<StartEnd> getPositions() {
      return positions;
    }
  }

  public static class StartEnd
  {
    private int start;
    private int end;


    public StartEnd(int start, int end) {
      this.start = start;
      this.end = end;
    }

    /**
     *
     * @return The end position of this match
     */
    public int getEnd() {
      return end;
    }

    /**
     * The Start position
     * @return The start position of this match
     */
    public int getStart() {
      return start;
    }

  }
}



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