| using Lucene.Net.Search; |
| |
| namespace Lucene.Net.Queries |
| { |
| /* |
| * 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> |
| /// A <see cref="Search.Filter"/> that wrapped with an indication of how that filter |
| /// is used when composed with another filter. |
| /// (Follows the boolean logic in <see cref="BooleanClause"/> for composition |
| /// of queries.) |
| /// </summary> |
| public sealed class FilterClause |
| { |
| private readonly Occur occur; |
| private readonly Filter filter; |
| |
| /// <summary> |
| /// Create a new <see cref="FilterClause"/> </summary> |
| /// <param name="filter"> A <see cref="Search.Filter"/> object containing a BitSet </param> |
| /// <param name="occur"> A parameter implementation indicating SHOULD, MUST or MUST NOT </param> |
| public FilterClause(Filter filter, Occur occur) |
| { |
| this.occur = occur; |
| this.filter = filter; |
| } |
| |
| /// <summary> |
| /// Returns this <see cref="FilterClause"/>'s filter </summary> |
| /// <returns> A <see cref="Search.Filter"/> object </returns> |
| public Filter Filter => filter; |
| |
| /// <summary> |
| /// Returns this <see cref="FilterClause"/>'s occur parameter </summary> |
| /// <returns> An <see cref="Search.Occur"/> object </returns> |
| public Occur Occur => occur; |
| |
| public override bool Equals(object o) |
| { |
| if (o == this) |
| { |
| return true; |
| } |
| |
| if (!(o is FilterClause other)) |
| { |
| return false; |
| } |
| return this.filter.Equals(other.filter) |
| && this.occur == other.occur; |
| } |
| |
| public override int GetHashCode() |
| { |
| return filter.GetHashCode() ^ occur.GetHashCode(); |
| } |
| |
| public override string ToString() |
| { |
| return BooleanClause.ToString(occur) + filter.ToString(); |
| } |
| } |
| } |