org.apache.hadoop.hive.ql.plan
Class GroupByDesc

java.lang.Object
  org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc
      org.apache.hadoop.hive.ql.plan.GroupByDesc

All Implemented Interfaces:

Serializable, Cloneable, OperatorDesc

public class GroupByDesc
extends AbstractOperatorDesc

GroupByDesc.

See Also:

Serialized Form

Nested Class Summary

static class

GroupByDesc.Mode Mode.

Constructor Summary

GroupByDesc()

GroupByDesc(GroupByDesc.Mode mode, ArrayList<String> outputColumnNames, ArrayList<ExprNodeDesc> keys, ArrayList<AggregationDesc> aggregators, boolean groupKeyNotReductionKey, boolean bucketGroup, float groupByMemoryUsage, float memoryThreshold, List<Integer> listGroupingSets, boolean groupingSetsPresent, int groupingSetsPosition)

GroupByDesc(GroupByDesc.Mode mode, ArrayList<String> outputColumnNames, ArrayList<ExprNodeDesc> keys, ArrayList<AggregationDesc> aggregators, boolean groupKeyNotReductionKey, float groupByMemoryUsage, float memoryThreshold, List<Integer> listGroupingSets, boolean groupingSetsPresent, int groupingSetsPosition)

Method Summary

ArrayList<AggregationDesc>	getAggregators()
boolean	getBucketGroup()
float	getGroupByMemoryUsage()
int	getGroupingSetPosition()
boolean	getGroupKeyNotReductionKey()
ArrayList<ExprNodeDesc>	getKeys()
List<Integer>	getListGroupingSets()
float	getMemoryThreshold()
GroupByDesc.Mode	getMode()
String	getModeString()
ArrayList<String>	getOutputColumnNames()
boolean	isDistinctLike() Checks if this grouping is like distinct, which means that all non-distinct grouping columns behave like they were distinct - for example min and max operators.
boolean	isGroupingSetsPresent()
void	setAggregators(ArrayList<AggregationDesc> aggregators)
void	setBucketGroup(boolean bucketGroup)
void	setGroupByMemoryUsage(float groupByMemoryUsage)
void	setGroupingSetPosition(int groupingSetPosition)
void	setGroupingSetsPresent(boolean groupingSetsPresent)
void	setGroupKeyNotReductionKey(boolean groupKeyNotReductionKey)
void	setKeys(ArrayList<ExprNodeDesc> keys)
void	setListGroupingSets(List<Integer> listGroupingSets)
void	setMemoryThreshold(float memoryThreshold)
void	setMode(GroupByDesc.Mode mode)
void	setOutputColumnNames(ArrayList<String> outputColumnNames)

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

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupByDesc

public GroupByDesc()

GroupByDesc

public GroupByDesc(GroupByDesc.Mode mode,
                   ArrayList<String> outputColumnNames,
                   ArrayList<ExprNodeDesc> keys,
                   ArrayList<AggregationDesc> aggregators,
                   boolean groupKeyNotReductionKey,
                   float groupByMemoryUsage,
                   float memoryThreshold,
                   List<Integer> listGroupingSets,
                   boolean groupingSetsPresent,
                   int groupingSetsPosition)

GroupByDesc

public GroupByDesc(GroupByDesc.Mode mode,
                   ArrayList<String> outputColumnNames,
                   ArrayList<ExprNodeDesc> keys,
                   ArrayList<AggregationDesc> aggregators,
                   boolean groupKeyNotReductionKey,
                   boolean bucketGroup,
                   float groupByMemoryUsage,
                   float memoryThreshold,
                   List<Integer> listGroupingSets,
                   boolean groupingSetsPresent,
                   int groupingSetsPosition)

Method Detail

getMode

public GroupByDesc.Mode getMode()

getModeString

public String getModeString()

setMode

public void setMode(GroupByDesc.Mode mode)

getKeys

public ArrayList<ExprNodeDesc> getKeys()

setKeys

public void setKeys(ArrayList<ExprNodeDesc> keys)

getOutputColumnNames

public ArrayList<String> getOutputColumnNames()

setOutputColumnNames

public void setOutputColumnNames(ArrayList<String> outputColumnNames)

getGroupByMemoryUsage

public float getGroupByMemoryUsage()

setGroupByMemoryUsage

public void setGroupByMemoryUsage(float groupByMemoryUsage)

getMemoryThreshold

public float getMemoryThreshold()

setMemoryThreshold

public void setMemoryThreshold(float memoryThreshold)

getAggregators

public ArrayList<AggregationDesc> getAggregators()

setAggregators

public void setAggregators(ArrayList<AggregationDesc> aggregators)

getGroupKeyNotReductionKey

public boolean getGroupKeyNotReductionKey()

setGroupKeyNotReductionKey

public void setGroupKeyNotReductionKey(boolean groupKeyNotReductionKey)

getBucketGroup

public boolean getBucketGroup()

setBucketGroup

public void setBucketGroup(boolean bucketGroup)

isDistinctLike

public boolean isDistinctLike()

Checks if this grouping is like distinct, which means that all non-distinct grouping columns behave like they were distinct - for example min and max operators.

getListGroupingSets

public List<Integer> getListGroupingSets()

setListGroupingSets

public void setListGroupingSets(List<Integer> listGroupingSets)

isGroupingSetsPresent

public boolean isGroupingSetsPresent()

setGroupingSetsPresent

public void setGroupingSetsPresent(boolean groupingSetsPresent)

getGroupingSetPosition

public int getGroupingSetPosition()

setGroupingSetPosition

public void setGroupingSetPosition(int groupingSetPosition)