MapReduceLegacyOperation Class

Note: This API is now obsolete.

Represents a map-reduce operation.

Inheritance Hierarchy

SystemObject
MongoDB.Driver.Core.OperationsMapReduceOperationBase
MongoDB.Driver.Core.OperationsMapReduceLegacyOperation

Namespace: MongoDB.Driver.Core.Operations
Assembly: MongoDB.Driver.Core (in MongoDB.Driver.Core.dll) Version: 2.21.0+5a9c3311e158910b88195f290e6d4b1b2715d2b2

Syntax

Copy

[ObsoleteAttribute("Use Aggregation pipeline instead.")]
public class MapReduceLegacyOperation : MapReduceOperationBase, 
	IReadOperation<BsonDocument>

<ObsoleteAttribute("Use Aggregation pipeline instead.")>
Public Class MapReduceLegacyOperation
	Inherits MapReduceOperationBase
	Implements IReadOperation(Of BsonDocument)

[<ObsoleteAttribute("Use Aggregation pipeline instead.")>]
type MapReduceLegacyOperation =  
    class
        inherit MapReduceOperationBase
        interface IReadOperation<BsonDocument>
    end

The MapReduceLegacyOperation type exposes the following members.

Constructors

	Name	Description
	MapReduceLegacyOperation	Initializes a new instance of the MapReduceLegacyOperation class.

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Properties

	Name	Description
	Collation	Gets or sets the collation. (Inherited from MapReduceOperationBase.)
	CollectionNamespace	Gets the collection namespace. (Inherited from MapReduceOperationBase.)
	Filter	Gets or sets the filter. (Inherited from MapReduceOperationBase.)
	FinalizeFunction	Gets or sets the finalize function. (Inherited from MapReduceOperationBase.)
	JavaScriptMode	Obsolete. Gets or sets a value indicating whether objects emitted by the map function remain as JavaScript objects. (Inherited from MapReduceOperationBase.)
	Limit	Gets or sets the maximum number of documents to pass to the map function. (Inherited from MapReduceOperationBase.)
	MapFunction	Gets the map function. (Inherited from MapReduceOperationBase.)
	MaxTime	Gets or sets the maximum time the server should spend on this operation. (Inherited from MapReduceOperationBase.)
	MessageEncoderSettings	Gets the message encoder settings. (Inherited from MapReduceOperationBase.)
	ReadConcern	Gets or sets the read concern.
	ReduceFunction	Gets the reduce function. (Inherited from MapReduceOperationBase.)
	Scope	Gets or sets the scope document. (Inherited from MapReduceOperationBase.)
	Sort	Gets or sets the sort specification. (Inherited from MapReduceOperationBase.)
	Verbose	Gets or sets a value indicating whether to include extra information, such as timing, in the result. (Inherited from MapReduceOperationBase.)

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Methods

	Name	Description
	CreateCommand	Creates the command. (Overrides MapReduceOperationBaseCreateCommand(ICoreSessionHandle, ConnectionDescription).)
	CreateOutputOptions	Creates the output options. (Overrides MapReduceOperationBaseCreateOutputOptions.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Execute	Executes the operation.
	ExecuteAsync	Executes the operation.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Extension Methods

	Name	Description
	ExecuteBsonDocument	Executes a read operation using a channel source. (Defined by OperationExtensionMethods.)
	ExecuteAsyncBsonDocument	Executes a read operation using a channel source. (Defined by OperationExtensionMethods.)
	ToBson	Serializes an object to a BSON byte array. (Defined by BsonExtensionMethods.)
	ToBsonDocument	Serializes an object to a BsonDocument. (Defined by BsonExtensionMethods.)
	ToJson	Serializes an object to a JSON string. (Defined by BsonExtensionMethods.)

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Reference

MongoDB.Driver.Core.Operations Namespace