public class ColumnEncoderFeatureHash extends ColumnEncoder
ColumnEncoder.EncoderType| Constructor and Description |
|---|
ColumnEncoderFeatureHash() |
ColumnEncoderFeatureHash(int colID,
long K) |
| Modifier and Type | Method and Description |
|---|---|
MatrixBlock |
apply(FrameBlock in,
MatrixBlock out,
int outputCol)
Apply the generated metadata to the FrameBlock and saved the result in out.
|
MatrixBlock |
apply(FrameBlock in,
MatrixBlock out,
int outputCol,
int rowStart,
int blk) |
MatrixBlock |
apply(MatrixBlock in,
MatrixBlock out,
int outputCol) |
MatrixBlock |
apply(MatrixBlock in,
MatrixBlock out,
int outputCol,
int rowStart,
int blk) |
void |
build(FrameBlock in)
Build the transform meta data for the given block input.
|
List<DependencyTask<?>> |
getBuildTasks(FrameBlock in,
int blockSize) |
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.
|
void |
readExternal(ObjectInput in)
Redirects the default java serialization via externalizable to our default hadoop writable serialization for
efficient broadcast/rdd deserialization.
|
void |
writeExternal(ObjectOutput out)
Redirects the default java serialization via externalizable to our default hadoop writable serialization for
efficient broadcast/rdd serialization.
|
buildPartial, compareTo, getApplyTasks, getApplyTasks, getBuildTask, getColID, getColMapping, getPartialBuildTask, getPartialMergeBuildTask, isApplicable, isApplicable, prepareBuildPartial, setColID, shiftCol, updateIndexRangespublic ColumnEncoderFeatureHash(int colID,
long K)
public ColumnEncoderFeatureHash()
public void build(FrameBlock in)
Encoderin - input frame blockpublic List<DependencyTask<?>> getBuildTasks(FrameBlock in, int blockSize)
getBuildTasks in class ColumnEncoderpublic MatrixBlock apply(FrameBlock in, MatrixBlock out, int outputCol)
Encoderin - input frame blockout - output matrix blockoutputCol - is a offset in the output matrix. column in FrameBlock + outputCol = column in outpublic MatrixBlock apply(MatrixBlock in, MatrixBlock out, int outputCol)
apply in class ColumnEncoderpublic MatrixBlock apply(FrameBlock in, MatrixBlock out, int outputCol, int rowStart, int blk)
apply in class ColumnEncoderpublic MatrixBlock apply(MatrixBlock in, MatrixBlock out, int outputCol, int rowStart, int blk)
apply in class ColumnEncoderpublic void mergeAt(ColumnEncoder other)
ColumnEncoderColumnEncoders are compatible with themselves and EncoderComposite is compatible with
every other ColumnEncoders. MultiColumnEncoders are compatible with every encodermergeAt in class ColumnEncoderother - the encoder that should be merged inpublic FrameBlock getMetaData(FrameBlock meta)
Encodermeta - output frame blockpublic void initMetaData(FrameBlock meta)
Encodermeta - frame blockpublic void writeExternal(ObjectOutput out) throws IOException
ColumnEncoderwriteExternal in interface ExternalizablewriteExternal in class ColumnEncoderout - object outputIOException - if IOException occurspublic void readExternal(ObjectInput in) throws IOException
ColumnEncoderreadExternal in interface ExternalizablereadExternal in class ColumnEncoderin - object inputIOException - if IOException occurCopyright © 2021 The Apache Software Foundation. All rights reserved.