EvalFunc.SchemaTypelog, pigLogger, reporter, returnType| Constructor and Description |
|---|
UPPER() |
| Modifier and Type | Method and Description |
|---|---|
boolean |
allowCompileTimeCalculation()
Whether the UDF should be evaluated at compile time if all inputs are constant.
|
String |
exec(Tuple input)
Upper-cases an input string.
|
List<FuncSpec> |
getArgToFuncMapping()
Allow a UDF to specify type specific implementations of itself.
|
Schema |
outputSchema(Schema input)
This method gives a name to the column.
|
finish, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warnpublic String exec(Tuple input) throws IOException
exec in class EvalFunc<String>input - tuple; first column is assumed to have the column to convertIOExceptionpublic Schema outputSchema(Schema input)
outputSchema in class EvalFunc<String>input - - schema of the input datapublic List<FuncSpec> getArgToFuncMapping() throws FrontendException
EvalFuncgetArgToFuncMapping in class EvalFunc<String>FrontendExceptionpublic boolean allowCompileTimeCalculation()
EvalFuncallowCompileTimeCalculation in class EvalFunc<String>Copyright © 2007-2017 The Apache Software Foundation