public class DoubleGetExponent extends EvalFunc<Integer>
Math.getExponent(double)
.
Given a single data atom it returns the unbiased exponent used in
the representation of a double
value
- double
.int
register math.jar;
A = load 'mydata' using PigStorage() as ( float1 );
B = foreach A generate float1, math.getExponent(float1);
Math.getExponent(double)
,
EvalFunc.SchemaType
log, pigLogger, reporter, returnType
Constructor and Description |
---|
DoubleGetExponent() |
Modifier and Type | Method and Description |
---|---|
Integer |
exec(Tuple input)
java level API
|
Schema |
outputSchema(Schema input)
Report the schema of the output of this UDF.
|
allowCompileTimeCalculation, finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn
public Integer exec(Tuple input) throws IOException
exec
in class EvalFunc<Integer>
input
- expects a single numeric valueoutput
- returns a single numeric value, unbiased
exponent used in the representation of a doubleIOException
public Schema outputSchema(Schema input)
EvalFunc
The default implementation interprets the OutputSchema
annotation,
if one is present. Otherwise, it returns null
(no known output schema).
outputSchema
in class EvalFunc<Integer>
input
- Schema of the inputCopyright © 2007-2017 The Apache Software Foundation