EvalFunc.SchemaType
log, pigLogger, reporter, returnType
Constructor and Description |
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BagToTuple() |
Modifier and Type | Method and Description |
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Tuple |
exec(Tuple inputTuple)
This callback method must be implemented by all subclasses.
|
Schema |
outputSchema(Schema inputSchema)
Report the schema of the output of this UDF.
|
finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, isAsynchronous, progress, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn
public Tuple exec(Tuple inputTuple) throws java.io.IOException
EvalFunc
public Schema outputSchema(Schema inputSchema)
EvalFunc
The default implementation interprets the OutputSchema
annotation,
if one is present. Otherwise, it returns null
(no known output schema).
outputSchema
in class EvalFunc<Tuple>
inputSchema
- Schema of the inputCopyright © 2007-2012 The Apache Software Foundation