public class DoubleRoundTo extends EvalFunc<Double>
rounding mode;
by default, 'HALF_EVEN' is used.EvalFunc.SchemaTypelog, pigLogger, reporter, returnType| Constructor and Description |
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DoubleRoundTo() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
allowCompileTimeCalculation()
Whether the UDF should be evaluated at compile time if all inputs are constant.
|
Double |
exec(Tuple input)
java level API
|
List<FuncSpec> |
getArgToFuncMapping()
Allow a UDF to specify type specific implementations of itself.
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finish, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, outputSchema, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warnpublic Double exec(Tuple input) throws IOException
exec in class EvalFunc<Double>input - expects a numeric value to round, a number of digits to keep, and an optional rounding mode.IOExceptionpublic List<FuncSpec> getArgToFuncMapping() throws FrontendException
EvalFuncgetArgToFuncMapping in class EvalFunc<Double>FrontendExceptionpublic boolean allowCompileTimeCalculation()
EvalFuncallowCompileTimeCalculation in class EvalFunc<Double>Copyright © 2007-2017 The Apache Software Foundation