org.apache.hadoop.hive.ql.udf.generic
Class GenericUDAFStd.GenericUDAFStdEvaluator

java.lang.Object
  org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator
      org.apache.hadoop.hive.ql.udf.generic.GenericUDAFVariance.GenericUDAFVarianceEvaluator
          org.apache.hadoop.hive.ql.udf.generic.GenericUDAFStd.GenericUDAFStdEvaluator

All Implemented Interfaces:

Closeable

Enclosing class:

GenericUDAFStd

public static class GenericUDAFStd.GenericUDAFStdEvaluator
extends GenericUDAFVariance.GenericUDAFVarianceEvaluator

Compute the standard deviation by extending GenericUDAFVarianceEvaluator and overriding the terminate() method of the evaluator.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator

GenericUDAFEvaluator.AbstractAggregationBuffer, GenericUDAFEvaluator.AggregationBuffer, GenericUDAFEvaluator.AggregationType, GenericUDAFEvaluator.Mode

Constructor Summary

GenericUDAFStd.GenericUDAFStdEvaluator()

Method Summary

Object

terminate(GenericUDAFEvaluator.AggregationBuffer agg) Get final aggregation result.

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDAFVariance.GenericUDAFVarianceEvaluator

getNewAggregationBuffer, getResult, init, iterate, merge, reset, setResult, terminatePartial

Methods inherited from class org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator

aggregate, close, configure, evaluate, isEstimable

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenericUDAFStd.GenericUDAFStdEvaluator

public GenericUDAFStd.GenericUDAFStdEvaluator()

Method Detail

terminate

public Object terminate(GenericUDAFEvaluator.AggregationBuffer agg)
                 throws HiveException

Description copied from class: GenericUDAFEvaluator

Get final aggregation result.

Overrides:

terminate in class GenericUDAFVariance.GenericUDAFVarianceEvaluator

Returns:

final aggregation result.

Throws:

HiveException