| /* |
| * 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; |
| |
| |
| import org.apache.lucene.search.spans.Spans; |
| |
| /** |
| * Wrapper used in {@link DisiPriorityQueue}. |
| * @lucene.internal |
| */ |
| public class DisiWrapper { |
| public final DocIdSetIterator iterator; |
| public final Scorer scorer; |
| public final long cost; |
| public final float matchCost; // the match cost for two-phase iterators, 0 otherwise |
| public int doc; // the current doc, used for comparison |
| public DisiWrapper next; // reference to a next element, see #topList |
| |
| // An approximation of the iterator, or the iterator itself if it does not |
| // support two-phase iteration |
| public final DocIdSetIterator approximation; |
| // A two-phase view of the iterator, or null if the iterator does not support |
| // two-phase iteration |
| public final TwoPhaseIterator twoPhaseView; |
| |
| // For WANDScorer |
| long maxScore; |
| |
| // FOR SPANS |
| public final Spans spans; |
| public int lastApproxMatchDoc; // last doc of approximation that did match |
| public int lastApproxNonMatchDoc; // last doc of approximation that did not match |
| |
| public DisiWrapper(Scorer scorer) { |
| this.scorer = scorer; |
| this.spans = null; |
| this.iterator = scorer.iterator(); |
| this.cost = iterator.cost(); |
| this.doc = -1; |
| this.twoPhaseView = scorer.twoPhaseIterator(); |
| |
| if (twoPhaseView != null) { |
| approximation = twoPhaseView.approximation(); |
| matchCost = twoPhaseView.matchCost(); |
| } else { |
| approximation = iterator; |
| matchCost = 0f; |
| } |
| } |
| |
| public DisiWrapper(Spans spans) { |
| this.scorer = null; |
| this.spans = spans; |
| this.iterator = spans; |
| this.cost = iterator.cost(); |
| this.doc = -1; |
| this.twoPhaseView = spans.asTwoPhaseIterator(); |
| |
| if (twoPhaseView != null) { |
| approximation = twoPhaseView.approximation(); |
| matchCost = twoPhaseView.matchCost(); |
| } else { |
| approximation = iterator; |
| matchCost = 0f; |
| } |
| this.lastApproxNonMatchDoc = -2; |
| this.lastApproxMatchDoc = -2; |
| } |
| } |
| |