xgboost.data::IteratorAdapter< DataIterHandle, XGBCallbackDataIterNext, XGBoostBatchCSR > Class Template Reference

Data iterator that takes callback to return data, used in JVM package for accepting data iterator. More...

#include <adapter.h>

Inheritance diagram for xgboost.data::IteratorAdapter< DataIterHandle, XGBCallbackDataIterNext, XGBoostBatchCSR >:

Public Member Functions
	IteratorAdapter (DataIterHandle data_handle, XGBCallbackDataIterNext *next_callback)
void	BeforeFirst () override
	set before first of the item
bool	Next () override
	move to next item
FileAdapterBatch const &	Value () const override
	get current data
void	SetData (const XGBoostBatchCSR &batch)
size_t	NumColumns () const
size_t	NumRows () const
Public Member Functions inherited from dmlc::DataIter< FileAdapterBatch >
virtual	~DataIter (void) DMLC_THROW_EXCEPTION
	destructor

Detailed Description

template<typename DataIterHandle, typename XGBCallbackDataIterNext, typename XGBoostBatchCSR>
class xgboost.data::IteratorAdapter< DataIterHandle, XGBCallbackDataIterNext, XGBoostBatchCSR >

Data iterator that takes callback to return data, used in JVM package for accepting data iterator.

Member Function Documentation

BeforeFirst()

template<typename DataIterHandle , typename XGBCallbackDataIterNext , typename XGBoostBatchCSR >

void xgboost.data::IteratorAdapter< DataIterHandle, XGBCallbackDataIterNext, XGBoostBatchCSR >::BeforeFirst ( void  )

inlineoverridevirtual

set before first of the item

Implements dmlc::DataIter< FileAdapterBatch >.

Next()

template<typename DataIterHandle , typename XGBCallbackDataIterNext , typename XGBoostBatchCSR >

bool xgboost.data::IteratorAdapter< DataIterHandle, XGBCallbackDataIterNext, XGBoostBatchCSR >::Next ( void  )

inlineoverridevirtual

move to next item

Implements dmlc::DataIter< FileAdapterBatch >.

Value()

template<typename DataIterHandle , typename XGBCallbackDataIterNext , typename XGBoostBatchCSR >

FileAdapterBatch const & xgboost.data::IteratorAdapter< DataIterHandle, XGBCallbackDataIterNext, XGBoostBatchCSR >::Value ( void  ) const

inlineoverridevirtual

get current data

Implements dmlc::DataIter< FileAdapterBatch >.

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

• External/xgboost/src/data/adapter.h