org.apache.datasketches.pig.tuple

Class DataToArrayOfDoublesSketch.Initial

java.lang.Object

org.apache.pig.EvalFunc<org.apache.pig.data.Tuple>

org.apache.datasketches.pig.tuple.AlgebraicInitial

org.apache.datasketches.pig.tuple.DataToArrayOfDoublesSketch.Initial

Enclosing class:

DataToArrayOfDoublesSketch

public static class DataToArrayOfDoublesSketch.Initial
extends AlgebraicInitial

Nested Class Summary

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

org.apache.pig.EvalFunc.SchemaType

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

Constructors

Constructor and Description
Initial() Constructor for the initial pass of an Algebraic function.
Initial(String numValues) Constructor for the initial pass of an Algebraic function.
Initial(String sketchSize, String numValues) Constructor for the initial pass of an Algebraic function.
Initial(String sketchSize, String samplingProbability, String numValues) Constructor for the initial pass of an Algebraic function.

Method Summary

Methods inherited from class org.apache.datasketches.pig.tuple.AlgebraicInitial

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

Initial

public Initial()

Constructor for the initial pass of an Algebraic function. Using default parameters.

Initial

public Initial(String numValues)

Constructor for the initial pass of an Algebraic function. This will be passed the same constructor arguments as the original UDF.

Parameters:

numValues - Number of double values to keep for each key

Initial

public Initial(String sketchSize,
               String numValues)

Constructor for the initial pass of an Algebraic function. This will be passed the same constructor arguments as the original UDF.

Parameters:

sketchSize - String representation of sketch size

numValues - Number of double values to keep for each key

Initial

public Initial(String sketchSize,
               String samplingProbability,
               String numValues)

Constructor for the initial pass of an Algebraic function. This will be passed the same constructor arguments as the original UDF.

Parameters:

sketchSize - String representation of sketch size

samplingProbability - probability from 0 to 1

numValues - Number of double values to keep for each key