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

Class VectorPTFEvaluatorLongMax

java.lang.Object

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

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

public class VectorPTFEvaluatorLongMax
extends VectorPTFEvaluatorBase

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

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	isGroupResultNull
protected long	max

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

inputColumnNum, LOG, outputColumnNum

Constructor Summary

Constructors

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

Method Summary

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

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

canRunOptimizedCalculation, doLastBatchWork, evaluateInputExpr, getNullsLast, getOutputColumnNum, isCacheableForRange, 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

isGroupResultNull

protected boolean isGroupResultNull

max

protected long max

Constructor Detail

VectorPTFEvaluatorLongMax

public VectorPTFEvaluatorLongMax(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

isGroupResultNull

public boolean isGroupResultNull()

Overrides:

isGroupResultNull in class VectorPTFEvaluatorBase

getResultColumnVectorType

public ColumnVector.Type getResultColumnVectorType()

Specified by:

getResultColumnVectorType in class VectorPTFEvaluatorBase

getGroupResult

public Object getGroupResult()

Overrides:

getGroupResult in class VectorPTFEvaluatorBase

resetEvaluator

public void resetEvaluator()

Specified by:

resetEvaluator in class VectorPTFEvaluatorBase