| 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, |
| * 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. |
| */ |
| |
| 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; |
| } |
| } |