org.apache.lens.ml.spark
Class FeatureFunction

java.lang.Object
  org.apache.lens.ml.spark.FeatureFunction

All Implemented Interfaces:

Serializable, org.apache.spark.api.java.function.Function<scala.Tuple2<org.apache.hadoop.io.WritableComparable,org.apache.hive.hcatalog.data.HCatRecord>,org.apache.spark.mllib.regression.LabeledPoint>

Direct Known Subclasses:

ColumnFeatureFunction

public abstract class FeatureFunction
extends Object
implements org.apache.spark.api.java.function.Function<scala.Tuple2<org.apache.hadoop.io.WritableComparable,org.apache.hive.hcatalog.data.HCatRecord>,org.apache.spark.mllib.regression.LabeledPoint>

Function to map an HCatRecord to a feature vector usable by MLLib.

See Also:

Serialized Form

Constructor Summary

FeatureFunction()

Method Summary

abstract org.apache.spark.mllib.regression.LabeledPoint

call(scala.Tuple2<org.apache.hadoop.io.WritableComparable,org.apache.hive.hcatalog.data.HCatRecord> tuple)

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureFunction

public FeatureFunction()

Method Detail

call

public abstract org.apache.spark.mllib.regression.LabeledPoint call(scala.Tuple2<org.apache.hadoop.io.WritableComparable,org.apache.hive.hcatalog.data.HCatRecord> tuple)
                                                             throws Exception

Specified by:

call in interface org.apache.spark.api.java.function.Function<scala.Tuple2<org.apache.hadoop.io.WritableComparable,org.apache.hive.hcatalog.data.HCatRecord>,org.apache.spark.mllib.regression.LabeledPoint>

Throws:

Exception