org.apache.hadoop.hive.ql.udf
Class UDFLog2

java.lang.Object
  org.apache.hadoop.hive.ql.exec.UDF
      org.apache.hadoop.hive.ql.udf.UDFMath
          org.apache.hadoop.hive.ql.udf.UDFLog2

public class UDFLog2
extends UDFMath

UDFLog2.

Constructor Summary

UDFLog2()

Method Summary

DoubleWritable

evaluate(DoubleWritable a) Returns the logarithm of "a" with base 2.

Methods inherited from class org.apache.hadoop.hive.ql.udf.UDFMath

evaluate

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

UDFLog2

public UDFLog2()

Method Detail

evaluate

public DoubleWritable evaluate(DoubleWritable a)

Returns the logarithm of "a" with base 2.

Specified by:

evaluate in class UDFMath