EvalFunc.SchemaTypelog, pigLogger, reporter, returnType| Constructor and Description |
|---|
JsFunction(String functionName) |
| Modifier and Type | Method and Description |
|---|---|
Object |
exec(Tuple tuple)
This callback method must be implemented by all subclasses.
|
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, warnpublic JsFunction(String functionName)
public Object exec(Tuple tuple) throws IOException
EvalFuncexec in class EvalFunc<Object>tuple - the Tuple to be processed.IOExceptionpublic 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<Object>input - Schema of the inputCopyright © 2007-2017 The Apache Software Foundation