Package com.illumon.iris.db.v2.join.dupexpand

Class DoubleDupExpandKernel

java.lang.Object

com.illumon.iris.db.v2.join.dupexpand.DoubleDupExpandKernel

All Implemented Interfaces:

DupExpandKernel

public class DoubleDupExpandKernel
extends Object
implements DupExpandKernel

Field Summary

Fields

Modifier and Type	Field	Description
static DoubleDupExpandKernel	INSTANCE

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final DoubleDupExpandKernel INSTANCE

Method Details

expandDuplicates

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

Description copied from interface: DupExpandKernel

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.

Specified by:

expandDuplicates in interface DupExpandKernel

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

expandDuplicates

public static void expandDuplicates(int expandedSize, WritableDoubleChunk<? extends Attributes.Any> chunkToExpand, IntChunk<Attributes.ChunkLengths> keyRunLengths)