org.apache.sysml.runtime.compress

Class ReaderColumnSelectionDenseSample

java.lang.Object

org.apache.sysml.runtime.compress.ReaderColumnSelection

org.apache.sysml.runtime.compress.ReaderColumnSelectionDenseSample

public class ReaderColumnSelectionDenseSample
extends ReaderColumnSelection

considers only a subset of row indexes

Field Summary

Fields

Modifier and Type	Field and Description
protected MatrixBlock	_data

Fields inherited from class org.apache.sysml.runtime.compress.ReaderColumnSelection

_colIndexes, _lastRow, _numRows, _skipZeros

Constructor Summary

Constructors

Constructor and Description
ReaderColumnSelectionDenseSample(MatrixBlock data, int[] colIndexes, int[] sampleIndexes, boolean skipZeros)

Method Summary

Modifier and Type	Method and Description
int	getCurrentRowIndex()
DblArray	nextRow() Gets the next row, null when no more rows.
void	reset() Resets the reader to the first row.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_data

protected MatrixBlock _data

Constructor Detail

ReaderColumnSelectionDenseSample

public ReaderColumnSelectionDenseSample(MatrixBlock data,
                                        int[] colIndexes,
                                        int[] sampleIndexes,
                                        boolean skipZeros)

Method Detail

nextRow

public DblArray nextRow()

Description copied from class: ReaderColumnSelection

Gets the next row, null when no more rows.

Specified by:

nextRow in class ReaderColumnSelection

Returns:

next row

getCurrentRowIndex

public int getCurrentRowIndex()

Overrides:

getCurrentRowIndex in class ReaderColumnSelection

reset

public void reset()

Description copied from class: ReaderColumnSelection

Resets the reader to the first row.

Overrides:

reset in class ReaderColumnSelection