org.apache.hadoop.hive.ql.exec.vector.ptf

Class VectorPTFEvaluatorLongAvg

java.lang.Object

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorBase

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractAvg<Long>

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorLongAvg

public class VectorPTFEvaluatorLongAvg
extends VectorPTFEvaluatorAbstractAvg<Long>

This class evaluates long avg() for a PTF group. Sum up non-null column values; group result is sum / non-null count.

Field Summary

Fields

Modifier and Type	Field and Description
protected double	avg

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractAvg

isGroupResultNull, nonNullGroupCount, previousCount, previousRange, previousSum, sum

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorBase

inputColumnNum, LOG, outputColumnNum

Constructor Summary

Constructors

Constructor and Description
VectorPTFEvaluatorLongAvg(WindowFrameDef windowFrameDef, VectorExpression inputVecExpr, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
protected Long	computeValue(Long number)
protected Double	divide(Long number, long divisor)
void	doLastBatchWork()
void	evaluateGroupBatch(VectorizedRowBatch batch)
Object	getGroupResult()
ColumnVector.Type	getResultColumnVectorType()
protected Long	minus(Long number1, Long number2)
protected Long	plus(Long number1, Long number2)
void	resetEvaluator()

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractAvg

canRunOptimizedCalculation, isGroupResultNull, onPartitionEnd, onResultCalculated, runOnRange, streamsResult

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorBase

evaluateInputExpr, getNullsLast, getOutputColumnNum, isCacheableForRange, mapCustomColumns, setNullsLast

Methods inherited from class java.lang.Object

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

Field Detail

avg

protected double avg

Constructor Detail

VectorPTFEvaluatorLongAvg

public VectorPTFEvaluatorLongAvg(WindowFrameDef windowFrameDef,
                                 VectorExpression inputVecExpr,
                                 int outputColumnNum)

Method Detail

evaluateGroupBatch

public void evaluateGroupBatch(VectorizedRowBatch batch)
                        throws HiveException

Specified by:

evaluateGroupBatch in class VectorPTFEvaluatorBase

Throws:

HiveException

doLastBatchWork

public void doLastBatchWork()

Overrides:

doLastBatchWork in class VectorPTFEvaluatorBase

getResultColumnVectorType

public ColumnVector.Type getResultColumnVectorType()

Specified by:

getResultColumnVectorType in class VectorPTFEvaluatorBase

getGroupResult

public Object getGroupResult()

Overrides:

getGroupResult in class VectorPTFEvaluatorBase

computeValue

protected Long computeValue(Long number)

Specified by:

computeValue in class VectorPTFEvaluatorAbstractAvg<Long>

plus

protected Long plus(Long number1,
                    Long number2)

Specified by:

plus in class VectorPTFEvaluatorAbstractAvg<Long>

minus

protected Long minus(Long number1,
                     Long number2)

Specified by:

minus in class VectorPTFEvaluatorAbstractAvg<Long>

divide

protected Double divide(Long number,
                        long divisor)

Specified by:

divide in class VectorPTFEvaluatorAbstractAvg<Long>

resetEvaluator

public void resetEvaluator()

Specified by:

resetEvaluator in class VectorPTFEvaluatorBase