Package io.deephaven.engine.table.impl.join.dupexpand

Interface DupExpandKernel

All Known Implementing Classes:

BooleanDupExpandKernel, ByteDupExpandKernel, CharDupExpandKernel, DoubleDupExpandKernel, FloatDupExpandKernel, IntDupExpandKernel, LongDupExpandKernel, ObjectDupExpandKernel, ShortDupExpandKernel

public interface DupExpandKernel

Method Summary

Modifier and Type	Method	Description
void	expandDuplicates(int expandedSize, WritableChunk<? extends Any> chunkToExpand, IntChunk<ChunkLengths> keyRunLengths)	Expands entries values from chunkToExpand in-place, using keyRunLengths to determine how many copies.
static DupExpandKernel	makeDupExpand(ChunkType chunkType)

Method Details

makeDupExpand

static DupExpandKernel makeDupExpand(ChunkType chunkType)

expandDuplicates

void expandDuplicates(int expandedSize,
 WritableChunk<? extends Any> chunkToExpand,
 IntChunk<ChunkLengths> keyRunLengths)

Expands entries values from chunkToExpand in-place, using keyRunLengths to determine how many copies. The keyRunLengths chunk is parallel to the original chunkToExpand; it is never modified.

Parameters:

expandedSize - the sum of all entries in keyRunLengths

chunkToExpand - the values to expand in-place (this writable chunk must have capacity >= expandedSize)

keyRunLengths - the key run-lengths parallel to chunkToExpand