org.apache.pig.builtin
Class AlgebraicDoubleMathBase.Final

java.lang.Object
  extended by org.apache.pig.EvalFunc<T>
      extended by org.apache.pig.builtin.AlgebraicMathBase.Final<Double>
          extended by org.apache.pig.builtin.AlgebraicDoubleMathBase.Final
All Implemented Interfaces:
AlgebraicMathBase.KnownOpProvider
Direct Known Subclasses:
DoubleMax.Final, DoubleMin.Final, DoubleSum.Final
Enclosing class:
AlgebraicDoubleMathBase

public abstract static class AlgebraicDoubleMathBase.Final
extends AlgebraicMathBase.Final<Double>


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
AlgebraicDoubleMathBase.Final()
           
 
Method Summary
 Double 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
 
Methods inherited from interface org.apache.pig.builtin.AlgebraicMathBase.KnownOpProvider
getOp
 

Constructor Detail

AlgebraicDoubleMathBase.Final

public AlgebraicDoubleMathBase.Final()
Method Detail

exec

public Double 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<Double>
Parameters:
input - the Tuple to be processed.
Returns:
result, of type T.
Throws:
IOException


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