org.apache.ignite.internal.processors.query.h2

Class H2ManagedGroupByData

java.lang.Object

org.gridgain.internal.h2.command.dml.GroupByData

org.apache.ignite.internal.processors.query.h2.H2ManagedGroupByData

public class H2ManagedGroupByData
extends org.gridgain.internal.h2.command.dml.GroupByData

Group by data with disk offload capabilities.

Field Summary

Fields inherited from class org.gridgain.internal.h2.command.dml.GroupByData

ses, tracker

Constructor Summary

Constructors

Constructor and Description
H2ManagedGroupByData(org.gridgain.internal.h2.engine.Session ses, int[] grpIdx)

Method Summary

Modifier and Type	Method and Description
void	done(int width)
Object[]	groupByExprData()
org.gridgain.internal.h2.value.ValueRow	groupKey()
boolean	next()
Object[]	nextSource(org.gridgain.internal.h2.value.ValueRow grpKey, int width)
void	onRowProcessed()
void	remove()
void	reset()
long	size()
void	updateCurrent(Object[] grpByExprData)

Methods inherited from class org.gridgain.internal.h2.command.dml.GroupByData

initTracker, onGroupChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

H2ManagedGroupByData

public H2ManagedGroupByData(org.gridgain.internal.h2.engine.Session ses,
                            int[] grpIdx)

Parameters:

ses - Session.

grpIdx - Indexes of group-by columns.

Method Detail

nextSource

public Object[] nextSource(org.gridgain.internal.h2.value.ValueRow grpKey,
                           int width)

Specified by:

nextSource in class org.gridgain.internal.h2.command.dml.GroupByData

size

public long size()

Specified by:

size in class org.gridgain.internal.h2.command.dml.GroupByData

next

public boolean next()

Specified by:

next in class org.gridgain.internal.h2.command.dml.GroupByData

groupKey

public org.gridgain.internal.h2.value.ValueRow groupKey()

Specified by:

groupKey in class org.gridgain.internal.h2.command.dml.GroupByData

groupByExprData

public Object[] groupByExprData()

Specified by:

groupByExprData in class org.gridgain.internal.h2.command.dml.GroupByData

reset

public void reset()

Specified by:

reset in class org.gridgain.internal.h2.command.dml.GroupByData

remove

public void remove()

Specified by:

remove in class org.gridgain.internal.h2.command.dml.GroupByData

onRowProcessed

public void onRowProcessed()

Specified by:

onRowProcessed in class org.gridgain.internal.h2.command.dml.GroupByData

updateCurrent

public void updateCurrent(Object[] grpByExprData)

Specified by:

updateCurrent in class org.gridgain.internal.h2.command.dml.GroupByData

done

public void done(int width)

Specified by:

done in class org.gridgain.internal.h2.command.dml.GroupByData