Package org.apache.sysds.runtime.compress.readers

Class ReaderColumnSelection

java.lang.Object

org.apache.sysds.runtime.compress.readers.ReaderColumnSelection

Direct Known Subclasses:

ReaderColumnSelectionDenseMultiBlock, ReaderColumnSelectionDenseMultiBlockTransposed, ReaderColumnSelectionDenseSingleBlock, ReaderColumnSelectionDenseSingleBlockTransposed, ReaderColumnSelectionSparse, ReaderColumnSelectionSparseTransposed

public abstract class ReaderColumnSelection
extends Object

Base class for all column selection readers.

Method Summary

Modifier and Type	Method	Description
static ReaderColumnSelection	createReader(MatrixBlock rawBlock, int[] colIndices, boolean transposed)
static ReaderColumnSelection	createReader(MatrixBlock rawBlock, int[] colIndices, boolean transposed, int rl, int ru)
int	getCurrentRowIndex()
DblArray	nextRow()	Gets the next row, null when no more rows.

Methods inherited from class java.lang.Object

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

Method Detail

nextRow

public final DblArray nextRow()

Gets the next row, null when no more rows.

Returns:

next row

getCurrentRowIndex

public int getCurrentRowIndex()

createReader

public static ReaderColumnSelection createReader(MatrixBlock rawBlock,
                                                 int[] colIndices,
                                                 boolean transposed)

createReader

public static ReaderColumnSelection createReader(MatrixBlock rawBlock,
                                                 int[] colIndices,
                                                 boolean transposed,
                                                 int rl,
                                                 int ru)