public abstract static class GenericUDAFStreamingEvaluator.SumAvgEnhancer<T1,T2> extends GenericUDAFStreamingEvaluator<T1>
GenericUDAFStreamingEvaluator.SumAvgEnhancer<T1,T2>
GenericUDAFEvaluator.AbstractAggregationBuffer, GenericUDAFEvaluator.AggregationBuffer, GenericUDAFEvaluator.AggregationType, GenericUDAFEvaluator.Mode
wFrameDef, wrappedEval
partitionEvaluator
NULL_RESULT
Constructor and Description |
---|
SumAvgEnhancer(GenericUDAFEvaluator wrappedEval,
WindowFrameDef wFrameDef) |
Modifier and Type | Method and Description |
---|---|
protected abstract T2 |
getCurrentIntermediateResult(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFStreamingEvaluator.SumAvgEnhancer.SumAvgStreamingState ss) |
GenericUDAFEvaluator.AggregationBuffer |
getNewAggregationBuffer()
Get a new aggregation object.
|
protected abstract T1 |
getNextResult(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFStreamingEvaluator.SumAvgEnhancer.SumAvgStreamingState ss) |
int |
getRowsRemainingAfterTerminate() |
void |
iterate(GenericUDAFEvaluator.AggregationBuffer agg,
Object[] parameters)
Iterate through original data.
|
Object |
terminate(GenericUDAFEvaluator.AggregationBuffer agg)
Get final aggregation result.
|
getNextResult, init, merge, reset, terminatePartial
aggregate, close, configure, createPartitionEvaluator, estimate, evaluate, getExprString, getPartitionWindowingEvaluator, getWindowingEvaluator, isEstimable
public SumAvgEnhancer(GenericUDAFEvaluator wrappedEval, WindowFrameDef wFrameDef)
public GenericUDAFEvaluator.AggregationBuffer getNewAggregationBuffer() throws HiveException
GenericUDAFEvaluator
getNewAggregationBuffer
in class GenericUDAFEvaluator
HiveException
public void iterate(GenericUDAFEvaluator.AggregationBuffer agg, Object[] parameters) throws HiveException
GenericUDAFEvaluator
iterate
in class GenericUDAFEvaluator
parameters
- The objects of parameters.HiveException
public Object terminate(GenericUDAFEvaluator.AggregationBuffer agg) throws HiveException
GenericUDAFEvaluator
terminate
in class GenericUDAFEvaluator
HiveException
public int getRowsRemainingAfterTerminate() throws HiveException
HiveException
protected abstract T1 getNextResult(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFStreamingEvaluator.SumAvgEnhancer.SumAvgStreamingState ss) throws HiveException
HiveException
protected abstract T2 getCurrentIntermediateResult(org.apache.hadoop.hive.ql.udf.generic.GenericUDAFStreamingEvaluator.SumAvgEnhancer.SumAvgStreamingState ss) throws HiveException
HiveException
Copyright © 2019 The Apache Software Foundation. All rights reserved.