NYT::IReducerBase Class Reference

Base interface for structured (typed) reduce jobs. More...

#include <operation.h>

Inheritance diagram for NYT::IReducerBase:

Additional Inherited Members
Public Types inherited from NYT::IJob
enum	EType {   Mapper , Reducer , ReducerAggregator , RawJob ,   VanillaJob }
	Type of job.
Public Member Functions inherited from NYT::IStructuredJob
virtual TRawTableReaderPtr	CreateCustomRawJobReader (int fd) const
	This methods are called when creating table reader and writer for the job.
virtual THolder< IProxyOutput >	CreateCustomRawJobWriter (size_t outputTableCount) const
virtual TStructuredRowStreamDescription	GetInputRowStreamDescription () const =0
virtual TStructuredRowStreamDescription	GetOutputRowStreamDescription () const =0
Public Member Functions inherited from NYT::IJob
virtual void	Save (IOutputStream &stream) const
	Save job state to stream to be restored on cluster nodes.
virtual void	Load (IInputStream &stream)
	Restore job state from a stream.
const TNode &	SecureVault () const
	Get operation secure vault (specified in NYT::TOperationOptions::SecureVault) inside a job.
i64	GetOutputTableCount () const
	Get number of output tables.
virtual void	PrepareOperation (const IOperationPreparationContext &context, TJobOperationPreparer &preparer) const
	Method allowing user to control some properties of input and output tables and formats.

Detailed Description

Base interface for structured (typed) reduce jobs.

It is common base for NYT::IReducer and NYT::IAggregatorReducer.

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The documentation for this class was generated from the following file:

• yt/cpp/mapreduce/interface/operation.h