Package org.apache.sysds.runtime.transform.encode

Class ColumnEncoderPassThrough

java.lang.Object

org.apache.sysds.runtime.transform.encode.ColumnEncoder

org.apache.sysds.runtime.transform.encode.ColumnEncoderPassThrough

All Implemented Interfaces:

Externalizable, Serializable, Comparable<ColumnEncoder>, Encoder

public class ColumnEncoderPassThrough
extends ColumnEncoder

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ColumnEncoderPassThrough.PassThroughSparseApplyTask

Nested classes/interfaces inherited from class org.apache.sysds.runtime.transform.encode.ColumnEncoder

ColumnEncoder.EncoderType

Field Summary

Fields inherited from class org.apache.sysds.runtime.transform.encode.ColumnEncoder

APPLY_ROW_BLOCKS_PER_COLUMN, BUILD_ROW_BLOCKS_PER_COLUMN

Constructor Summary

Constructors

Constructor	Description
ColumnEncoderPassThrough()

Method Summary

Modifier and Type	Method	Description
void	allocateMetaData(FrameBlock meta)	Pre-allocate a FrameBlock for metadata collection.
void	build(CacheBlock in)	Build the transform meta data for the given block input.
List<DependencyTask<?>>	getBuildTasks(CacheBlock in)
FrameBlock	getMetaData(FrameBlock meta)	Construct a frame block out of the transform meta data.
void	initMetaData(FrameBlock meta)	Sets up the required meta data for a subsequent call to apply.
void	mergeAt(ColumnEncoder other)	Merges another encoder, of a compatible type, in after a certain position.

Methods inherited from class org.apache.sysds.runtime.transform.encode.ColumnEncoder

apply, apply, build, build, buildPartial, compareTo, getApplyTasks, getBuildTask, getColID, getColMapping, getEstMetaSize, getEstNumDistincts, getPartialBuildTask, getPartialMergeBuildTask, getSparseRowsWZeros, isApplicable, isApplicable, prepareBuildPartial, readExternal, setColID, setEstMetaSize, setEstNumDistincts, shiftCol, updateIndexRanges, writeExternal

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnEncoderPassThrough

public ColumnEncoderPassThrough()

Method Detail

build

public void build(CacheBlock in)

Description copied from interface: Encoder

Build the transform meta data for the given block input. This call modifies and keeps meta data as encoder state.

Parameters:

in - input frame block

getBuildTasks

public List<DependencyTask<?>> getBuildTasks(CacheBlock in)

Overrides:

getBuildTasks in class ColumnEncoder

mergeAt

public void mergeAt(ColumnEncoder other)

Description copied from class: ColumnEncoder

Merges another encoder, of a compatible type, in after a certain position. Resizes as necessary. ColumnEncoders are compatible with themselves and EncoderComposite is compatible with every other ColumnEncoders. MultiColumnEncoders are compatible with every encoder

Overrides:

mergeAt in class ColumnEncoder

Parameters:

other - the encoder that should be merged in

allocateMetaData

public void allocateMetaData(FrameBlock meta)

Description copied from interface: Encoder

Pre-allocate a FrameBlock for metadata collection.

Parameters:

meta - frame block

getMetaData

public FrameBlock getMetaData(FrameBlock meta)

Description copied from interface: Encoder

Construct a frame block out of the transform meta data.

Parameters:

meta - output frame block

Returns:

output frame block?

initMetaData

public void initMetaData(FrameBlock meta)

Description copied from interface: Encoder

Sets up the required meta data for a subsequent call to apply.

Parameters:

meta - frame block