package org.apache.lucene.index;/** * Copyright 2004 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. */public class SegmentTermPositionVector extends SegmentTermVector implements TermPositionVector {  protected int[][] positions;  protected TermVectorOffsetInfo[][] offsets;  public static final int[] EMPTY_TERM_POS = new int[0];    public SegmentTermPositionVector(String field, String terms[], int termFreqs[], int[][] positions, TermVectorOffsetInfo[][] offsets) {    super(field, terms, termFreqs);    this.offsets = offsets;    this.positions = positions;  }  /**   * Returns an array of TermVectorOffsetInfo in which the term is found.   *   * @param index The position in the array to get the offsets from   * @return An array of TermVectorOffsetInfo objects or the empty list   * @see org.apache.lucene.analysis.Token   */  public TermVectorOffsetInfo[] getOffsets(int index) {    TermVectorOffsetInfo[] result = TermVectorOffsetInfo.EMPTY_OFFSET_INFO;    if(offsets == null)      return null;    if (index >=0 && index < offsets.length)    {      result = offsets[index];    }    return result;  }    /**   * 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</code> method.   */  public int[] getTermPositions(int index) {    int[] result = EMPTY_TERM_POS;    if(positions == null)      return null;    if (index >=0 && index < positions.length)    {      result = positions[index];    }        return result;  }}