Interface for reading data in a computation graph. More...

#include <source.h>

Inheritance diagram for scanner::Source:

Public Member Functions
	Source (const SourceConfig &config)

virtual void	validate (proto::Result *result)
	Checks if Source arguments are valid. More...

virtual void	read (const std::vector< ElementArgs > &args, BatchedElements &output_columns)=0
	Runs the Source to generate input elements. More...

virtual void	set_profiler (Profiler *profiler)
	For internal use.

Detailed Description

Interface for reading data in a computation graph.

Sources are how Scanner's computation graphs read data from outside the system.

Member Function Documentation

virtual void scanner::Source::read	(	const std::vector< ElementArgs > &	args,
		BatchedElements &	output_columns
	)

pure virtual

Runs the Source to generate input elements.

Parameters

args	vector of ElementArgs produced by an Enumerator, where each ElementArgs describes which elements to read.
output_columns	source output, vector of elements, where each element was produced using the provided ElementArgs

Number of output columns must be non-zero.

virtual void scanner::Source::validate ( proto::Result * result )

inlinevirtual

Checks if Source arguments are valid.

Only useful if your Source has its own custom Protobuf arguments.

Profiler* scanner::Source::profiler_ = nullptr

The profiler allows an op to save profiling data for later visualization. It is not guaranteed to be non-null, so check before use.

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