Class ColumnEncoderPassThrough
- java.lang.Object
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- org.apache.sysds.runtime.transform.encode.ColumnEncoder
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- org.apache.sysds.runtime.transform.encode.ColumnEncoderPassThrough
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- All Implemented Interfaces:
Externalizable,Serializable,Comparable<ColumnEncoder>,Encoder
public class ColumnEncoderPassThrough extends ColumnEncoder
- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classColumnEncoderPassThrough.PassThroughSparseApplyTask-
Nested classes/interfaces inherited from class org.apache.sysds.runtime.transform.encode.ColumnEncoder
ColumnEncoder.EncoderType
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Field Summary
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Fields inherited from class org.apache.sysds.runtime.transform.encode.ColumnEncoder
APPLY_ROW_BLOCKS_PER_COLUMN, BUILD_ROW_BLOCKS_PER_COLUMN
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Constructor Summary
Constructors Constructor Description ColumnEncoderPassThrough()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidallocateMetaData(FrameBlock meta)Pre-allocate a FrameBlock for metadata collection.voidbuild(CacheBlock in)Build the transform meta data for the given block input.List<DependencyTask<?>>getBuildTasks(CacheBlock in)FrameBlockgetMetaData(FrameBlock meta)Construct a frame block out of the transform meta data.voidinitMetaData(FrameBlock meta)Sets up the required meta data for a subsequent call to apply.voidmergeAt(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
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Method Detail
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build
public void build(CacheBlock in)
Description copied from interface:EncoderBuild the transform meta data for the given block input. This call modifies and keeps meta data as encoder state.- Parameters:
in- input frame block
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getBuildTasks
public List<DependencyTask<?>> getBuildTasks(CacheBlock in)
- Overrides:
getBuildTasksin classColumnEncoder
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mergeAt
public void mergeAt(ColumnEncoder other)
Description copied from class:ColumnEncoderMerges another encoder, of a compatible type, in after a certain position. Resizes as necessary.ColumnEncodersare compatible with themselves andEncoderCompositeis compatible with every otherColumnEncoders.MultiColumnEncodersare compatible with every encoder- Overrides:
mergeAtin classColumnEncoder- Parameters:
other- the encoder that should be merged in
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allocateMetaData
public void allocateMetaData(FrameBlock meta)
Description copied from interface:EncoderPre-allocate a FrameBlock for metadata collection.- Parameters:
meta- frame block
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getMetaData
public FrameBlock getMetaData(FrameBlock meta)
Description copied from interface:EncoderConstruct a frame block out of the transform meta data.- Parameters:
meta- output frame block- Returns:
- output frame block?
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initMetaData
public void initMetaData(FrameBlock meta)
Description copied from interface:EncoderSets up the required meta data for a subsequent call to apply.- Parameters:
meta- frame block
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