datafu.pig.sampling
Class ReservoirSample.Initial

java.lang.Object
  org.apache.pig.EvalFunc<org.apache.pig.data.Tuple>
      datafu.pig.sampling.ReservoirSample.Initial

Enclosing class:

ReservoirSample

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

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

ReservoirSample.Initial()

ReservoirSample.Initial(java.lang.String numSamples)

Method Summary

org.apache.pig.data.Tuple

exec(org.apache.pig.data.Tuple input)

Methods inherited from class org.apache.pig.EvalFunc

finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, 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

ReservoirSample.Initial

public ReservoirSample.Initial()

ReservoirSample.Initial

public ReservoirSample.Initial(java.lang.String numSamples)

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