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

Class VectorPTFEvaluatorStreamingDoubleMax

java.lang.Object

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

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

public class VectorPTFEvaluatorStreamingDoubleMax
extends VectorPTFEvaluatorBase

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

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	isNull
protected double	max

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

inputColumnNum, LOG, outputColumnNum

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	evaluateGroupBatch(VectorizedRowBatch batch)
ColumnVector.Type	getResultColumnVectorType()
void	resetEvaluator()
boolean	streamsResult()

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

canRunOptimizedCalculation, doLastBatchWork, evaluateInputExpr, getGroupResult, getNullsLast, getOutputColumnNum, isCacheableForRange, isGroupResultNull, mapCustomColumns, onPartitionEnd, onResultCalculated, runOnRange, setNullsLast

Methods inherited from class java.lang.Object

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

Field Detail

isNull

protected boolean isNull

max

protected double max

Constructor Detail

VectorPTFEvaluatorStreamingDoubleMax

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

Method Detail

evaluateGroupBatch

public void evaluateGroupBatch(VectorizedRowBatch batch)
                        throws HiveException

Specified by:

evaluateGroupBatch in class VectorPTFEvaluatorBase

Throws:

HiveException

streamsResult

public boolean streamsResult()

Specified by:

streamsResult in class VectorPTFEvaluatorBase

getResultColumnVectorType

public ColumnVector.Type getResultColumnVectorType()

Specified by:

getResultColumnVectorType in class VectorPTFEvaluatorBase

resetEvaluator

public void resetEvaluator()

Specified by:

resetEvaluator in class VectorPTFEvaluatorBase