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BsonDiscriminatorAttribute.cs
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BsonDiscriminatorAttribute.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 System;
namespace MongoDB.Bson.Serialization.Attributes
{
/// <summary>
/// Specifies the discriminator and related options for a class.
/// </summary>
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct)]
public class BsonDiscriminatorAttribute : Attribute, IBsonClassMapAttribute
{
// private fields
private string _discriminator;
private bool _required;
private bool _rootClass;
// constructors
/// <summary>
/// Initializes a new instance of the BsonDiscriminatorAttribute class.
/// </summary>
public BsonDiscriminatorAttribute()
{
}
/// <summary>
/// Initializes a new instance of the BsonDiscriminatorAttribute class.
/// </summary>
/// <param name="discriminator">The discriminator.</param>
public BsonDiscriminatorAttribute(string discriminator)
{
_discriminator = discriminator;
}
// public properties
/// <summary>
/// Gets the discriminator.
/// </summary>
public string Discriminator
{
get { return _discriminator; }
}
/// <summary>
/// Gets or sets whether the discriminator is required.
/// </summary>
public bool Required
{
get { return _required; }
set { _required = value; }
}
/// <summary>
/// Gets or sets whether this is a root class.
/// </summary>
public bool RootClass
{
get { return _rootClass; }
set { _rootClass = value; }
}
// public methods
/// <summary>
/// Applies a modification to the class map.
/// </summary>
/// <param name="classMap">The class map.</param>
public void Apply(BsonClassMap classMap)
{
if (_discriminator != null)
{
classMap.SetDiscriminator(_discriminator);
}
classMap.SetDiscriminatorIsRequired(_required);
classMap.SetIsRootClass(_rootClass);
}
}
}