org.apache.datasketches.pig.tuple

Class UnionDoubleSummarySketch

java.lang.Object

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

org.apache.datasketches.pig.tuple.UnionSketch<org.apache.datasketches.tuple.adouble.DoubleSummary>

org.apache.datasketches.pig.tuple.UnionDoubleSummarySketch

All Implemented Interfaces:

org.apache.pig.Accumulator<org.apache.pig.data.Tuple>, org.apache.pig.Algebraic

public class UnionDoubleSummarySketch
extends UnionSketch<org.apache.datasketches.tuple.adouble.DoubleSummary>
implements org.apache.pig.Algebraic

This is to union Sketch<DoubleSummary>. It supports all three ways: exec(), Accumulator and Algebraic

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UnionDoubleSummarySketch.Initial
static class	UnionDoubleSummarySketch.IntermediateFinal

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
UnionDoubleSummarySketch() Constructor with default sketch size and default mode (sum)
UnionDoubleSummarySketch(String sketchSize) Constructor with default mode (sum)
UnionDoubleSummarySketch(String sketchSize, String summaryMode) Constructor

Method Summary

Modifier and Type	Method and Description
String	getFinal()
String	getInitial()
String	getIntermed()

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

accumulate, cleanup, exec, getValue

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

UnionDoubleSummarySketch

public UnionDoubleSummarySketch()

Constructor with default sketch size and default mode (sum)

UnionDoubleSummarySketch

public UnionDoubleSummarySketch(String sketchSize)

Constructor with default mode (sum)

Parameters:

sketchSize - String representation of sketch size

UnionDoubleSummarySketch

public UnionDoubleSummarySketch(String sketchSize,
                                String summaryMode)

Constructor

Parameters:

sketchSize - String representation of sketch size

summaryMode - String representation of mode (sum, min or max)

Method Detail

getInitial

public String getInitial()

Specified by:

getInitial in interface org.apache.pig.Algebraic

getIntermed

public String getIntermed()

Specified by:

getIntermed in interface org.apache.pig.Algebraic

getFinal

public String getFinal()

Specified by:

getFinal in interface org.apache.pig.Algebraic