Package com.illumon.iris.db.v2.utils.compact

Class ByteCompactKernel

java.lang.Object

com.illumon.iris.db.v2.utils.compact.ByteCompactKernel

All Implemented Interfaces:

CompactKernel

public class ByteCompactKernel
extends Object
implements CompactKernel

Method Summary

Modifier and Type	Method	Description
static void	compact(WritableByteChunk<? extends Attributes.Any> values, BooleanChunk<Attributes.Any> retainValues)	Compact the values in values by retaining only the positions where retainValues is true.
void	compact(WritableChunk<? extends Attributes.Any> values, BooleanChunk<Attributes.Any> retainValues)	Compacts values into the front of the chunk, retaining only values where the parallel retainValues chunk has a true value.
static void	compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk, WritableIntChunk<Attributes.ChunkLengths> counts)
static void	compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk, WritableIntChunk<Attributes.ChunkLengths> counts, boolean countNull)
static int	compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk, WritableIntChunk<Attributes.ChunkLengths> counts, int start, int length, boolean countNull)
static void	compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk, WritableIntChunk<Attributes.ChunkLengths> counts, IntChunk<Attributes.ChunkPositions> startPositions, WritableIntChunk<Attributes.ChunkLengths> lengths, boolean countNull)
void	compactAndCount(WritableChunk<? extends Attributes.Values> valueChunk, WritableIntChunk<Attributes.ChunkLengths> counts, boolean countNull)	Sort valuesChunk, eliminate duplicates, and write the number of times a value occurred into the parallel slot within counts.
void	compactAndCount(WritableChunk<? extends Attributes.Values> valueChunk, WritableIntChunk<Attributes.ChunkLengths> counts, IntChunk<Attributes.ChunkPositions> startPositions, WritableIntChunk<Attributes.ChunkLengths> lengths, boolean countNull)	For each run in valuesChunk, sort it, eliminate duplicates, and write the number of times a value occurred into the parallel slot within counts.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.utils.compact.CompactKernel

compactAndCount, compactAndCount

Method Details

compact

public static void compact(WritableByteChunk<? extends Attributes.Any> values,
 BooleanChunk<Attributes.Any> retainValues)

Compact the values in values by retaining only the positions where retainValues is true.

Parameters:

values - the input and output chunk of values

retainValues - a chunk parallel to values, a value is retained in the output iff retainedValues is true

compact

public void compact(WritableChunk<? extends Attributes.Any> values,
 BooleanChunk<Attributes.Any> retainValues)

Description copied from interface: CompactKernel

Compacts values into the front of the chunk, retaining only values where the parallel retainValues chunk has a true value.

Specified by:

compact in interface CompactKernel

Parameters:

values - a chunk of values, input and output

retainValues - the values to retain

compactAndCount

public void compactAndCount(WritableChunk<? extends Attributes.Values> valueChunk,
 WritableIntChunk<Attributes.ChunkLengths> counts,
 boolean countNull)

Description copied from interface: CompactKernel

Sort valuesChunk, eliminate duplicates, and write the number of times a value occurred into the parallel slot within counts.

Specified by:

compactAndCount in interface CompactKernel

Parameters:

valueChunk - a chunk of values, input and output

counts - an output chunk parallel to valueChunk with the number of times a value occurred

countNull - if the compaction should count nulls or not

compactAndCount

public void compactAndCount(WritableChunk<? extends Attributes.Values> valueChunk,
 WritableIntChunk<Attributes.ChunkLengths> counts,
 IntChunk<Attributes.ChunkPositions> startPositions,
 WritableIntChunk<Attributes.ChunkLengths> lengths,
 boolean countNull)

Description copied from interface: CompactKernel

For each run in valuesChunk, sort it, eliminate duplicates, and write the number of times a value occurred into the parallel slot within counts.

Specified by:

compactAndCount in interface CompactKernel

Parameters:

valueChunk - a chunk of values, input and output

counts - an output chunk parallel to valueChunk with the number of times a value occurred

startPositions - the start of each run

lengths - the length of each run, input and output

countNull - if the compaction should count nulls or not

compactAndCount

public static void compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk,
 WritableIntChunk<Attributes.ChunkLengths> counts)

compactAndCount

public static void compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk,
 WritableIntChunk<Attributes.ChunkLengths> counts,
 boolean countNull)

compactAndCount

public static void compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk,
 WritableIntChunk<Attributes.ChunkLengths> counts,
 IntChunk<Attributes.ChunkPositions> startPositions,
 WritableIntChunk<Attributes.ChunkLengths> lengths,
 boolean countNull)

compactAndCount

public static int compactAndCount(WritableByteChunk<? extends Attributes.Values> valueChunk,
 WritableIntChunk<Attributes.ChunkLengths> counts,
 int start,
 int length,
 boolean countNull)