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

Class VectorPTFEvaluatorDecimalSum

java.lang.Object

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

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

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

public class VectorPTFEvaluatorDecimalSum
extends VectorPTFEvaluatorAbstractSum<HiveDecimalWritable>

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

Field Summary

Fields

Modifier and Type	Field and Description
protected HiveDecimalWritable	temp

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
VectorPTFEvaluatorDecimalSum(WindowFrameDef windowFrameDef, VectorExpression inputVecExpr, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
protected HiveDecimalWritable	computeValue(HiveDecimalWritable number)
void	evaluateGroupBatch(VectorizedRowBatch batch)
ColumnVector.Type	getResultColumnVectorType()
HiveDecimalWritable	minus(HiveDecimalWritable t1, HiveDecimalWritable t2)
void	onResultCalculated(Object result, Range range) This method is called by VectorPTFGroupBatches once the calculation is finished for a given row/range, but before the next calculation is invoked.
HiveDecimalWritable	plus(HiveDecimalWritable t1, HiveDecimalWritable t2)
void	resetEvaluator()

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

canRunOptimizedCalculation, getGroupResult, isGroupResultNull, onPartitionEnd, 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

Field Detail

temp

protected HiveDecimalWritable temp

Constructor Detail

VectorPTFEvaluatorDecimalSum

public VectorPTFEvaluatorDecimalSum(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 HiveDecimalWritable computeValue(HiveDecimalWritable number)

Specified by:

computeValue in class VectorPTFEvaluatorAbstractSum<HiveDecimalWritable>

plus

public HiveDecimalWritable plus(HiveDecimalWritable t1,
                                HiveDecimalWritable t2)

Specified by:

plus in class VectorPTFEvaluatorAbstractSum<HiveDecimalWritable>

minus

public HiveDecimalWritable minus(HiveDecimalWritable t1,
                                 HiveDecimalWritable t2)

Specified by:

minus in class VectorPTFEvaluatorAbstractSum<HiveDecimalWritable>

onResultCalculated

public void onResultCalculated(Object result,
                               Range range)

Description copied from class: VectorPTFEvaluatorBase

This method is called by VectorPTFGroupBatches once the calculation is finished for a given row/range, but before the next calculation is invoked.

Overrides:

onResultCalculated in class VectorPTFEvaluatorAbstractSum<HiveDecimalWritable>

resetEvaluator

public void resetEvaluator()

Specified by:

resetEvaluator in class VectorPTFEvaluatorBase