org.apache.datasketches.hive.cpc

Class SketchToStringUDF

java.lang.Object

org.apache.hadoop.hive.ql.exec.UDF

org.apache.datasketches.hive.cpc.SketchToStringUDF

public class SketchToStringUDF
extends org.apache.hadoop.hive.ql.exec.UDF

Constructor Summary

Constructors

Constructor and Description
SketchToStringUDF()

Method Summary

Modifier and Type	Method and Description
String	evaluate(org.apache.hadoop.io.BytesWritable serializedSketch) Get a summary of a given CpcSketch using the default seed
String	evaluate(org.apache.hadoop.io.BytesWritable serializedSketch, long seed) Get a summary of a given CpcSketch with explicit seed

Methods inherited from class org.apache.hadoop.hive.ql.exec.UDF

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

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

Constructor Detail

SketchToStringUDF

public SketchToStringUDF()

Method Detail

evaluate

public String evaluate(org.apache.hadoop.io.BytesWritable serializedSketch,
                       long seed)

Get a summary of a given CpcSketch with explicit seed

Parameters:

serializedSketch - CpcSketch in a serialized binary form

seed - update seed

Returns:

text summary

evaluate

public String evaluate(org.apache.hadoop.io.BytesWritable serializedSketch)

Get a summary of a given CpcSketch using the default seed

Parameters:

serializedSketch - CpcSketch in a serialized binary form

Returns:

text summary