datafu.pig.bags

Class CountDistinctUpTo.Initial

java.lang.Object

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

datafu.pig.bags.CountDistinctUpTo.Initial

Enclosing class:

CountDistinctUpTo

public static class CountDistinctUpTo.Initial
extends org.apache.pig.EvalFunc<org.apache.pig.data.Tuple>

Outputs a tuple containing a DataBag containing a single tuple T (the original schema) or an empty bag T -> ({T})

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
CountDistinctUpTo.Initial()
CountDistinctUpTo.Initial(java.lang.String maxAmount)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.pig.data.Tuple	exec(org.apache.pig.data.Tuple input)

Methods inherited from class org.apache.pig.EvalFunc

allowCompileTimeCalculation, finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, 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

CountDistinctUpTo.Initial

public CountDistinctUpTo.Initial()

CountDistinctUpTo.Initial

public CountDistinctUpTo.Initial(java.lang.String maxAmount)

Method Detail

exec

public org.apache.pig.data.Tuple exec(org.apache.pig.data.Tuple input)
                               throws java.io.IOException

Specified by:

exec in class org.apache.pig.EvalFunc<org.apache.pig.data.Tuple>

Throws:

java.io.IOException