| /* |
| * 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. |
| */ |
| package org.apache.lucene.search.highlight; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| |
| /** |
| * Lightweight class to hold term, weight, and positions used for scoring this |
| * term. |
| */ |
| public class WeightedSpanTerm extends WeightedTerm{ |
| boolean positionSensitive; |
| private List<PositionSpan> positionSpans = new ArrayList<>(); |
| |
| public WeightedSpanTerm(float weight, String term) { |
| super(weight, term); |
| this.positionSpans = new ArrayList<>(); |
| } |
| |
| public WeightedSpanTerm(float weight, String term, boolean positionSensitive) { |
| super(weight, term); |
| this.positionSensitive = positionSensitive; |
| } |
| |
| /** |
| * Checks to see if this term is valid at <code>position</code>. |
| * |
| * @param position |
| * to check against valid term positions |
| * @return true iff this term is a hit at this position |
| */ |
| public boolean checkPosition(int position) { |
| // There would probably be a slight speed improvement if PositionSpans |
| // where kept in some sort of priority queue - that way this method |
| // could |
| // bail early without checking each PositionSpan. |
| Iterator<PositionSpan> positionSpanIt = positionSpans.iterator(); |
| |
| while (positionSpanIt.hasNext()) { |
| PositionSpan posSpan = positionSpanIt.next(); |
| |
| if (((position >= posSpan.start) && (position <= posSpan.end))) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| public void addPositionSpans(List<PositionSpan> positionSpans) { |
| this.positionSpans.addAll(positionSpans); |
| } |
| |
| public boolean isPositionSensitive() { |
| return positionSensitive; |
| } |
| |
| public void setPositionSensitive(boolean positionSensitive) { |
| this.positionSensitive = positionSensitive; |
| } |
| |
| public List<PositionSpan> getPositionSpans() { |
| return positionSpans; |
| } |
| |
| } |
| |
| |