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

Class VectorPTFEvaluatorDoubleSum

java.lang.Object

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

org.apache.hadoop.hive.ql.exec.vector.ptf.VectorPTFEvaluatorAbstractSum<Double>

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

public class VectorPTFEvaluatorDoubleSum
extends VectorPTFEvaluatorAbstractSum<Double>

This class evaluates double sum() for a PTF group.

Field Summary

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

isGroupResultNull, 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
VectorPTFEvaluatorDoubleSum(WindowFrameDef windowFrameDef, VectorExpression inputVecExpr, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
protected Double	computeValue(Double number)
void	evaluateGroupBatch(VectorizedRowBatch batch)
ColumnVector.Type	getResultColumnVectorType()
protected Double	minus(Double number1, Double number2)
protected Double	plus(Double number1, Double number2)
void	resetEvaluator()

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

canRunOptimizedCalculation, getGroupResult, isGroupResultNull, onPartitionEnd, onResultCalculated, runOnRange, streamsResult

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

doLastBatchWork, evaluateInputExpr, getNullsLast, getOutputColumnNum, isCacheableForRange, mapCustomColumns, setNullsLast

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorPTFEvaluatorDoubleSum

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

Method Detail

evaluateGroupBatch

public void evaluateGroupBatch(VectorizedRowBatch batch)
                        throws HiveException

Specified by:

evaluateGroupBatch in class VectorPTFEvaluatorBase

Throws:

HiveException

getResultColumnVectorType

public ColumnVector.Type getResultColumnVectorType()

Specified by:

getResultColumnVectorType in class VectorPTFEvaluatorBase

computeValue

protected Double computeValue(Double number)

Specified by:

computeValue in class VectorPTFEvaluatorAbstractSum<Double>

plus

protected Double plus(Double number1,
                      Double number2)

Specified by:

plus in class VectorPTFEvaluatorAbstractSum<Double>

minus

protected Double minus(Double number1,
                       Double number2)

Specified by:

minus in class VectorPTFEvaluatorAbstractSum<Double>

resetEvaluator

public void resetEvaluator()

Specified by:

resetEvaluator in class VectorPTFEvaluatorBase