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SearchSpanDefinition.cs
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SearchSpanDefinition.cs
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/* Copyright 2010-present MongoDB Inc.
*
* Licensed 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.
*/
using MongoDB.Bson;
namespace MongoDB.Driver.Search
{
/// <summary>
/// Base class for span clauses.
/// </summary>
/// <typeparam name="TDocument"></typeparam>
public abstract class SearchSpanDefinition<TDocument>
{
/// <summary>
/// Span clause type.
/// </summary>
private protected enum ClauseType
{
First,
Near,
Or,
Subtract,
Term
}
private readonly ClauseType _clauseType;
/// <summary>
/// Initializes a new instance of the <see cref="SearchSpanDefinition{TDocument}"/> class.
/// </summary>
/// <param name="clauseType">The clause type.</param>
private protected SearchSpanDefinition(ClauseType clauseType) => _clauseType = clauseType;
/// <summary>
/// Renders the span clause to a <see cref="BsonDocument"/>.
/// </summary>
/// <param name="renderContext">The render context.</param>
/// <returns>A <see cref="BsonDocument"/>.</returns>
public BsonDocument Render(SearchDefinitionRenderContext<TDocument> renderContext) =>
new(_clauseType.ToCamelCase(), RenderClause(renderContext));
private protected virtual BsonDocument RenderClause(SearchDefinitionRenderContext<TDocument> renderContext) => new();
}
}