| package org.apache.lucene.facet; |
| |
| /* |
| * 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. |
| */ |
| |
| import org.apache.lucene.util.PriorityQueue; |
| |
| /** Keeps highest results, first by largest float value, |
| * then tie break by smallest ord. */ |
| public class TopOrdAndFloatQueue extends PriorityQueue<TopOrdAndFloatQueue.OrdAndValue> { |
| |
| /** Holds a single entry. */ |
| public static final class OrdAndValue { |
| |
| /** Ordinal of the entry. */ |
| public int ord; |
| |
| /** Value associated with the ordinal. */ |
| public float value; |
| |
| /** Default constructor. */ |
| public OrdAndValue() { |
| } |
| } |
| |
| /** Sole constructor. */ |
| public TopOrdAndFloatQueue(int topN) { |
| super(topN, false); |
| } |
| |
| @Override |
| protected boolean lessThan(OrdAndValue a, OrdAndValue b) { |
| if (a.value < b.value) { |
| return true; |
| } else if (a.value > b.value) { |
| return false; |
| } else { |
| return a.ord > b.ord; |
| } |
| } |
| } |