| using Lucene.Net.Util; |
| |
| namespace Lucene.Net.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. |
| */ |
| |
| /// <summary> |
| /// Keeps highest results, first by largest <see cref="float"/> value, |
| /// then tie break by smallest ord. |
| /// <para/> |
| /// NOTE: This was TopOrdAndFloatQueue in Lucene |
| /// </summary> |
| public class TopOrdAndSingleQueue : PriorityQueue<TopOrdAndSingleQueue.OrdAndValue> |
| { |
| /// <summary> |
| /// Holds a single entry. |
| /// </summary> |
| public sealed class OrdAndValue |
| { |
| /// <summary> |
| /// Ordinal of the entry. </summary> |
| public int Ord { get; set; } |
| |
| /// <summary> |
| /// Value associated with the ordinal. </summary> |
| public float Value { get; set; } |
| |
| /// <summary> |
| /// Default constructor. |
| /// </summary> |
| public OrdAndValue() |
| { |
| } |
| } |
| |
| /// <summary> |
| /// Sole constructor. |
| /// </summary> |
| public TopOrdAndSingleQueue(int topN) : base(topN, false) |
| { |
| } |
| |
| protected internal override bool 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; |
| } |
| } |
| } |
| } |