org.apache.hadoop.hive.ql.udf
Class UDFSign

java.lang.Object
  org.apache.hadoop.hive.ql.exec.UDF
      org.apache.hadoop.hive.ql.udf.UDFSign

public class UDFSign
extends UDF

Constructor Summary

UDFSign()

Method Summary

DoubleWritable	evaluate(DoubleWritable a) Take sign of a
org.apache.hadoop.io.IntWritable	evaluate(HiveDecimalWritable dec) Get the sign of the decimal input

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

getRequiredFiles, getRequiredJars, getResolver, setResolver

Methods inherited from class java.lang.Object

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

Constructor Detail

UDFSign

public UDFSign()

Method Detail

evaluate

public DoubleWritable evaluate(DoubleWritable a)

Take sign of a

evaluate

public org.apache.hadoop.io.IntWritable evaluate(HiveDecimalWritable dec)

Get the sign of the decimal input

Parameters:

dec - decimal input

Returns:

-1, 0, or 1 representing the sign of the input decimal