| using Lucene.Net.Queries.Function; |
| |
| namespace Lucene.Net.Expressions |
| { |
| /* |
| * 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>Binds variable names in expressions to actual data.</summary> |
| /// <remarks> |
| /// Binds variable names in expressions to actual data. |
| /// <para/> |
| /// These are typically DocValues fields/FieldCache, the document's |
| /// relevance score, or other <see cref="ValueSource"/>s. |
| /// @lucene.experimental |
| /// </remarks> |
| [System.Diagnostics.CodeAnalysis.SuppressMessage("Design", "CA1012:Abstract types should not have constructors", Justification = "Required for Reflection")] |
| public abstract class Bindings |
| { |
| /// <summary>Sole constructor.</summary> |
| /// <remarks> |
| /// Sole constructor. (For invocation by subclass |
| /// constructors, typically implicit.) |
| /// </remarks> |
| public Bindings() // LUCENENET NOTE: This must be public for the Reflection code to work right. |
| { |
| } |
| |
| /// <summary> |
| /// Returns a <see cref="ValueSource"/> bound to the variable name. |
| /// </summary> |
| public abstract ValueSource GetValueSource(string name); |
| |
| /// <summary> |
| /// Returns a <see cref="ValueSource"/> over relevance scores |
| /// </summary> |
| protected static ValueSource GetScoreValueSource() // LUCENENET: CA1822: Mark members as static |
| { |
| return new ScoreValueSource(); |
| } |
| } |
| } |