| using Lucene.Net.Util; |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.Search.Spell |
| { |
| /* |
| * 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> |
| /// Sorts SuggestWord instances |
| /// </summary> |
| /// <seealso cref="SuggestWordScoreComparer"/> |
| /// <seealso cref="SuggestWordFrequencyComparer"/> |
| public sealed class SuggestWordQueue : PriorityQueue<SuggestWord> |
| { |
| /// <summary> |
| /// Default comparer: score then frequency. </summary> |
| /// <seealso cref="SuggestWordScoreComparer"/> |
| public static readonly IComparer<SuggestWord> DEFAULT_COMPARER = new SuggestWordScoreComparer(); |
| |
| |
| private readonly IComparer<SuggestWord> comparer; |
| |
| /// <summary> |
| /// Use the <see cref="DEFAULT_COMPARER"/> </summary> |
| /// <param name="size"> The size of the queue </param> |
| public SuggestWordQueue(int size) |
| : base(size) |
| { |
| comparer = DEFAULT_COMPARER; |
| } |
| |
| /// <summary> |
| /// Specify the size of the queue and the comparer to use for sorting. </summary> |
| /// <param name="size"> The size </param> |
| /// <param name="comparer"> The comparer. </param> |
| public SuggestWordQueue(int size, IComparer<SuggestWord> comparer) |
| : base(size) |
| { |
| this.comparer = comparer; |
| } |
| |
| protected internal override bool LessThan(SuggestWord wa, SuggestWord wb) |
| { |
| int val = comparer.Compare(wa, wb); |
| return val < 0; |
| } |
| } |
| } |