org.apache.pig.scripting.jruby

Class JrubyAlgebraicEvalFunc.DoubleJrubyAlgebraicEvalFunc

java.lang.Object

org.apache.pig.EvalFunc<T>

org.apache.pig.AccumulatorEvalFunc<T>

org.apache.pig.AlgebraicEvalFunc<T>

org.apache.pig.scripting.jruby.JrubyAlgebraicEvalFunc<Double>

org.apache.pig.scripting.jruby.JrubyAlgebraicEvalFunc.DoubleJrubyAlgebraicEvalFunc

All Implemented Interfaces:

Accumulator<Double>, Algebraic

Enclosing class:

JrubyAlgebraicEvalFunc<T>

public static class JrubyAlgebraicEvalFunc.DoubleJrubyAlgebraicEvalFunc
extends JrubyAlgebraicEvalFunc<Double>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JrubyAlgebraicEvalFunc.DoubleJrubyAlgebraicEvalFunc.Final

Nested classes/interfaces inherited from class org.apache.pig.scripting.jruby.JrubyAlgebraicEvalFunc

JrubyAlgebraicEvalFunc.AlgebraicFunctionWrapper<T>, JrubyAlgebraicEvalFunc.BagJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.ChararrayJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.DataByteArrayJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.DoubleJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.FloatJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.Initial, JrubyAlgebraicEvalFunc.IntegerJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.Intermed, JrubyAlgebraicEvalFunc.LongJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.MapJrubyAlgebraicEvalFunc, JrubyAlgebraicEvalFunc.TupleJrubyAlgebraicEvalFunc

Nested classes/interfaces inherited from class org.apache.pig.EvalFunc

EvalFunc.SchemaType

Field Summary

Fields inherited from class org.apache.pig.scripting.jruby.JrubyAlgebraicEvalFunc

mBagFactory, mTupleFactory, ruby, rubyEngine

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

Constructors

Constructor and Description
DoubleJrubyAlgebraicEvalFunc(String fileName, String functionName)

Method Summary

Modifier and Type	Method and Description
String	getFinal() This must be implement as per a normal Algebraic interface.

Methods inherited from class org.apache.pig.scripting.jruby.JrubyAlgebraicEvalFunc

getInitial, getIntermed

Methods inherited from class org.apache.pig.AlgebraicEvalFunc

accumulate, cleanup, getValue

Methods inherited from class org.apache.pig.AccumulatorEvalFunc

exec

Methods inherited from class org.apache.pig.EvalFunc

allowCompileTimeCalculation, finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, outputSchema, progress, setEndOfAllInput, 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

DoubleJrubyAlgebraicEvalFunc

public DoubleJrubyAlgebraicEvalFunc(String fileName,
                                    String functionName)

Method Detail

getFinal

public String getFinal()

Description copied from class: AlgebraicEvalFunc

This must be implement as per a normal Algebraic interface. See Algebraic for more information.

Specified by:

getFinal in interface Algebraic

Specified by:

getFinal in class JrubyAlgebraicEvalFunc<Double>

Returns:

A function name of f_final. f_final should be an eval func parametrized by the same datum as the eval func implementing this interface.