public class nextAfter extends EvalFunc<Double>
Math.nextAfter(double,double)
.
Given a tuple with two data atom it Returns the
floating-point number adjacent to the first argument in the
direction of the second argument.
value
- Tuple containing two double
.double
register math.jar;
A = load 'mydata' using PigStorage() as ( float1 );
B = foreach A generate float1, math.nextAfter(float1);
Math.nextAfter(double,double)
,
EvalFunc.SchemaType
log, pigLogger, reporter, returnType
Constructor and Description |
---|
nextAfter() |
Modifier and Type | Method and Description |
---|---|
Double |
exec(Tuple input)
java level API
|
List<FuncSpec> |
getArgToFuncMapping()
Allow a UDF to specify type specific implementations of itself.
|
Schema |
outputSchema(Schema input)
Report the schema of the output of this UDF.
|
allowCompileTimeCalculation, finish, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn
public Double exec(Tuple input) throws IOException
exec
in class EvalFunc<Double>
input
- expects a tuple containing two numeric DataAtom valueoutput
- returns a single numeric DataAtom value, which is
the floating-point number adjacent to the first argument in the
direction of the second argument.IOException
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<Double>
input
- Schema of the inputpublic List<FuncSpec> getArgToFuncMapping() throws FrontendException
EvalFunc
getArgToFuncMapping
in class EvalFunc<Double>
FrontendException
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