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

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

Direct Known Subclasses:

UDFAcos, UDFAsin, UDFAtan, UDFCos, UDFDegrees, UDFExp, UDFLn, UDFLog, UDFLog10, UDFLog2, UDFRadians, UDFSin, UDFSqrt, UDFTan

public abstract class UDFMath
extends UDF

Constructor Summary

UDFMath()

Method Summary

abstract DoubleWritable	evaluate(DoubleWritable a) For subclass to implement.
DoubleWritable	evaluate(HiveDecimalWritable writable) Convert HiveDecimal to a double and call evaluate() on it.

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

UDFMath

public UDFMath()

Method Detail

evaluate

public abstract DoubleWritable evaluate(DoubleWritable a)

For subclass to implement.

evaluate

public final DoubleWritable evaluate(HiveDecimalWritable writable)

Convert HiveDecimal to a double and call evaluate() on it.