| using System; |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.Index.Memory |
| { |
| /* |
| * 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. |
| */ |
| |
| public partial class MemoryIndex |
| { |
| private class TermComparer |
| { |
| /// <summary> |
| /// Sorts term entries into ascending order; also works for |
| /// <see cref="Array.BinarySearch{T}(T[], T, IComparer{T})"/> and |
| /// <see cref="Array.Sort{T}(T[], IComparer{T})"/>. |
| /// </summary> |
| public static int KeyComparer<TKey, TValue>(KeyValuePair<TKey, TValue> x, KeyValuePair<TKey, TValue> y) |
| where TKey : class, IComparable<TKey> |
| { |
| if (x.Key == y.Key) return 0; |
| return typeof(TKey) == typeof(string) |
| ? string.Compare(x.Key as string, y.Key as string, StringComparison.Ordinal) |
| : x.Key.CompareTo(y.Key); |
| } |
| } |
| |
| private sealed class TermComparer<TKey, TValue> : TermComparer, IComparer<KeyValuePair<TKey, TValue>> |
| where TKey : class, IComparable<TKey> |
| { |
| public int Compare(KeyValuePair<TKey, TValue> x, KeyValuePair<TKey, TValue> y) |
| { |
| return KeyComparer(x, y); |
| } |
| } |
| } |
| } |