org.apache.pig.piggybank.evaluation.stats
Class COR.Initial

java.lang.Object
  extended by org.apache.pig.EvalFunc<Tuple>
      extended by org.apache.pig.piggybank.evaluation.stats.COR.Initial
All Implemented Interfaces:
Serializable
Enclosing class:
COR

public static class COR.Initial
extends EvalFunc<Tuple>
implements Serializable

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.pig.EvalFunc
EvalFunc.SchemaType
 
Field Summary
 
Fields inherited from class org.apache.pig.EvalFunc
log, pigLogger, reporter, returnType
 
Constructor Summary
COR.Initial()
           
 
Method Summary
 Tuple exec(Tuple input)
          This callback method must be implemented by all subclasses.
 
Methods inherited from class org.apache.pig.EvalFunc
finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, isAsynchronous, outputSchema, progress, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

COR.Initial

public COR.Initial()
Method Detail

exec

public Tuple exec(Tuple input)
           throws IOException
Description copied from class: EvalFunc
This callback method must be implemented by all subclasses. This is the method that will be invoked on every Tuple of a given dataset. Since the dataset may be divided up in a variety of ways the programmer should not make assumptions about state that is maintained between invocations of this method.

Specified by:
exec in class EvalFunc<Tuple>
Parameters:
input - the Tuple to be processed.
Returns:
result, of type T.
Throws:
IOException


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