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

Class ColumnEncoderDummycode

java.lang.Object
org.apache.sysds.runtime.transform.encode.ColumnEncoder
org.apache.sysds.runtime.transform.encode.ColumnEncoderDummycode
All Implemented Interfaces:
Externalizable, Serializable, Comparable<ColumnEncoder>, Encoder
public class ColumnEncoderDummycode extends ColumnEncoder
See Also:

  • Field Details

    • _domainSize

      public int _domainSize
      The number of columns outputted from this column group.

  • Constructor Details

    • ColumnEncoderDummycode

      public ColumnEncoderDummycode()

    • ColumnEncoderDummycode

      public ColumnEncoderDummycode(int colID)

    • ColumnEncoderDummycode

      public ColumnEncoderDummycode(int colID, int domainSize)

  • Method Details

    • 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

    • updateIndexRanges

      public void updateIndexRanges(long[] beginDims, long[] endDims, int colOffset)
      Description copied from class: ColumnEncoder
      Update index-ranges to after encoding. Note that only Dummycoding changes the ranges.
      Specified by:
      updateIndexRanges in interface Encoder
      Overrides:
      updateIndexRanges in class ColumnEncoder
      Parameters:
      beginDims - begin dimensions of range
      endDims - end dimensions of range
      colOffset - is applied to begin and endDims

    • updateDomainSizes

      public void updateDomainSizes(List<ColumnEncoder> columnEncoders)

    • 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

    • writeExternal

      public void writeExternal(ObjectOutput out) throws IOException
      Description copied from class: ColumnEncoder
      Redirects the default java serialization via externalizable to our default hadoop writable serialization for efficient broadcast/rdd serialization.
      Specified by:
      writeExternal in interface Externalizable
      Overrides:
      writeExternal in class ColumnEncoder
      Parameters:
      out - object output
      Throws:
      IOException - if IOException occurs

    • readExternal

      public void readExternal(ObjectInput in) throws IOException
      Description copied from class: ColumnEncoder
      Redirects the default java serialization via externalizable to our default hadoop writable serialization for efficient broadcast/rdd deserialization.
      Specified by:
      readExternal in interface Externalizable
      Overrides:
      readExternal in class ColumnEncoder
      Parameters:
      in - object input
      Throws:
      IOException - if IOException occur

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • getDomainSize

      public int getDomainSize()
      Overrides:
      getDomainSize in class ColumnEncoder

    • toString

      public String toString()
      Overrides:
      toString in class Object