org.apache.hadoop.hive.ql.plan

Class TopNKeyDesc

java.lang.Object

org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

org.apache.hadoop.hive.ql.plan.TopNKeyDesc

All Implemented Interfaces:

Serializable, Cloneable, OperatorDesc

public class TopNKeyDesc
extends AbstractOperatorDesc

TopNKeyDesc.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	TopNKeyDesc.TopNKeyDescExplainVectorization

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

bucketingVersion, colExprMap, memAvailable, memNeeded, opProps, opTraits, runtimeStatsTmpDir, statistics, vectorDesc, vectorMode

Constructor Summary

Constructors

Constructor and Description
TopNKeyDesc()
TopNKeyDesc(int topN, String columnSortOrder, String nullOrder, List<ExprNodeDesc> keyColumns, List<ExprNodeDesc> partitionKeyColumns, float efficiencyThreshold, long checkEfficiencyNumBatches, int maxNumberOfPartitions)

Method Summary

Modifier and Type	Method and Description
Object	clone()
TopNKeyDesc	combine(CommonKeyPrefix commonKeyPrefix)
long	getCheckEfficiencyNumBatches()
long	getCheckEfficiencyNumRows()
String	getColumnSortOrder()
float	getEfficiencyThreshold()
List<String>	getKeyColumnNames()
List<ExprNodeDesc>	getKeyColumns()
String	getKeyString()
int	getMaxNumberOfPartitions()
String	getNullOrder()
List<ExprNodeDesc>	getPartitionKeyColumns()
String	getPartitionKeyString()
int	getTopN()
TopNKeyDesc.TopNKeyDescExplainVectorization	getTopNKeyVectorization()
String	getUserLevelExplainKeyString()
String	getUserLevelExplainPartitionKeyString()
boolean	isSame(OperatorDesc other) The default implementation delegates to Object.equals(Object).
void	setCheckEfficiencyNumBatches(long checkEfficiencyNumBatches)
void	setCheckEfficiencyNumRows(long checkEfficiencyNumRows)
void	setColumnSortOrder(String columnSortOrder)
void	setEfficiencyThreshold(float efficiencyThreshold)
void	setKeyColumns(List<ExprNodeDesc> keyColumns)
void	setMaxNumberOfPartitions(int maxNumberOfPartitions)
void	setNullOrder(String nullOrder)
void	setPartitionKeyColumns(List<ExprNodeDesc> partitionKeyColumns)
void	setTopN(int topN)
TopNKeyDesc	withKeyColumns(int prefixLength)

Methods inherited from class org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

addComputedField, fillSignature, getBucketingVersion, getColumnExprMap, getColumnExprMapForExplain, getComputedFields, getMaxMemoryAvailable, getMemoryNeeded, getOpProps, getRuntimeStatsTmpDir, getStatistics, getTraits, getUserLevelStatistics, getVectorDesc, getVectorMode, setBucketingVersion, setColumnExprMap, setMaxMemoryAvailable, setMemoryNeeded, setOpProps, setRuntimeStatsTmpDir, setStatistics, setTraits, setVectorDesc, setVectorMode

Methods inherited from class java.lang.Object

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

Constructor Detail

TopNKeyDesc

public TopNKeyDesc()

TopNKeyDesc

public TopNKeyDesc(int topN,
                   String columnSortOrder,
                   String nullOrder,
                   List<ExprNodeDesc> keyColumns,
                   List<ExprNodeDesc> partitionKeyColumns,
                   float efficiencyThreshold,
                   long checkEfficiencyNumBatches,
                   int maxNumberOfPartitions)

Method Detail

getTopN

public int getTopN()

getEfficiencyThreshold

public float getEfficiencyThreshold()

getCheckEfficiencyNumBatches

public long getCheckEfficiencyNumBatches()

getCheckEfficiencyNumRows

public long getCheckEfficiencyNumRows()

getMaxNumberOfPartitions

public int getMaxNumberOfPartitions()

setTopN

public void setTopN(int topN)

getColumnSortOrder

public String getColumnSortOrder()

setColumnSortOrder

public void setColumnSortOrder(String columnSortOrder)

getNullOrder

public String getNullOrder()

setNullOrder

public void setNullOrder(String nullOrder)

getKeyString

public String getKeyString()

getUserLevelExplainKeyString

public String getUserLevelExplainKeyString()

getKeyColumns

public List<ExprNodeDesc> getKeyColumns()

setKeyColumns

public void setKeyColumns(List<ExprNodeDesc> keyColumns)

getKeyColumnNames

public List<String> getKeyColumnNames()

getPartitionKeyColumns

public List<ExprNodeDesc> getPartitionKeyColumns()

setPartitionKeyColumns

public void setPartitionKeyColumns(List<ExprNodeDesc> partitionKeyColumns)

getPartitionKeyString

public String getPartitionKeyString()

getUserLevelExplainPartitionKeyString

public String getUserLevelExplainPartitionKeyString()

isSame

public boolean isSame(OperatorDesc other)

Description copied from class: AbstractOperatorDesc

The default implementation delegates to Object.equals(Object). Intended to be overridden by sub classes.

Specified by:

isSame in interface OperatorDesc

Overrides:

isSame in class AbstractOperatorDesc

clone

public Object clone()

Specified by:

clone in interface OperatorDesc

Overrides:

clone in class AbstractOperatorDesc

setEfficiencyThreshold

public void setEfficiencyThreshold(float efficiencyThreshold)

setCheckEfficiencyNumBatches

public void setCheckEfficiencyNumBatches(long checkEfficiencyNumBatches)

setCheckEfficiencyNumRows

public void setCheckEfficiencyNumRows(long checkEfficiencyNumRows)

setMaxNumberOfPartitions

public void setMaxNumberOfPartitions(int maxNumberOfPartitions)

getTopNKeyVectorization

public TopNKeyDesc.TopNKeyDescExplainVectorization getTopNKeyVectorization()

combine

public TopNKeyDesc combine(CommonKeyPrefix commonKeyPrefix)

withKeyColumns

public TopNKeyDesc withKeyColumns(int prefixLength)