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

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

Direct Known Subclasses:

UDFOPNegative, UDFOPPositive

public abstract class UDFBaseNumericUnaryOp
extends UDF

Base class for numeric operators like +, -, / etc. All these operators share a common method resolver (NumericOpMethodResolver).

Field Summary

protected BigDecimalWritable	bigDecimalWritable
protected ByteWritable	byteWritable
protected DoubleWritable	doubleWritable
protected FloatWritable	floatWritable
protected IntWritable	intWritable
protected LongWritable	longWritable
protected ShortWritable	shortWritable

Constructor Summary

UDFBaseNumericUnaryOp()
Constructor.

Method Summary

abstract ByteWritable	evaluate(ByteWritable a)
abstract FloatWritable	evaluate(FloatWritable a)
abstract IntWritable	evaluate(IntWritable a)
abstract LongWritable	evaluate(LongWritable a)
abstract ShortWritable	evaluate(ShortWritable a)

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

Field Detail

byteWritable

protected ByteWritable byteWritable

shortWritable

protected ShortWritable shortWritable

intWritable

protected IntWritable intWritable

longWritable

protected LongWritable longWritable

floatWritable

protected FloatWritable floatWritable

doubleWritable

protected DoubleWritable doubleWritable

bigDecimalWritable

protected BigDecimalWritable bigDecimalWritable

Constructor Detail

UDFBaseNumericUnaryOp

public UDFBaseNumericUnaryOp()

Constructor.

Method Detail

evaluate

public abstract ByteWritable evaluate(ByteWritable a)

evaluate

public abstract ShortWritable evaluate(ShortWritable a)

evaluate

public abstract IntWritable evaluate(IntWritable a)

evaluate

public abstract LongWritable evaluate(LongWritable a)

evaluate

public abstract FloatWritable evaluate(FloatWritable a)