com.gigaspaces.query.aggregators
Class GroupByAggregator

java.lang.Object
  com.gigaspaces.query.aggregators.SpaceEntriesAggregator<GroupByResult>
      com.gigaspaces.query.aggregators.GroupByAggregator

All Implemented Interfaces:

Externalizable, Serializable, Cloneable

public class GroupByAggregator
extends SpaceEntriesAggregator<GroupByResult>
implements Externalizable

Since:

10.0

Author:

Niv Ingberg

See Also:

Serialized Form

Constructor Summary

GroupByAggregator()
Required for Externalizable

Method Summary

void	aggregate(SpaceEntriesAggregatorContext context)
void	aggregateIntermediateResult(GroupByResult partitionResult)
String	getDefaultAlias()
Object	getFinalResult()
GroupByResult	getIntermediateResult()
protected List<SpaceEntriesAggregator>	getSelectAggregators()
GroupByAggregator	groupBy(String... paths)
GroupByAggregator	having(GroupByFilter filter)
void	readExternal(ObjectInput in)
GroupByAggregator	select(SpaceEntriesAggregator... aggregators)
GroupByAggregator	selectAverage(String path)
GroupByAggregator	selectCount()
GroupByAggregator	selectCount(String path)
GroupByAggregator	selectMaxEntry(String path)
GroupByAggregator	selectMaxValue(String path)
GroupByAggregator	selectMinEntry(String path)
GroupByAggregator	selectMinValue(String path)
GroupByAggregator	selectSum(String path)
protected void	setRawEntryConverter(com.gigaspaces.internal.query.RawEntryConverter rawEntryConverter)
void	writeExternal(ObjectOutput out)

Methods inherited from class com.gigaspaces.query.aggregators.SpaceEntriesAggregator

as, clone, getAlias, toObject

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupByAggregator

public GroupByAggregator()

Required for Externalizable

Method Detail

getDefaultAlias

public String getDefaultAlias()

Specified by:

getDefaultAlias in class SpaceEntriesAggregator<GroupByResult>

groupBy

public GroupByAggregator groupBy(String... paths)

having

public GroupByAggregator having(GroupByFilter filter)

getSelectAggregators

protected List<SpaceEntriesAggregator> getSelectAggregators()

select

public GroupByAggregator select(SpaceEntriesAggregator... aggregators)

selectCount

public GroupByAggregator selectCount()

selectCount

public GroupByAggregator selectCount(String path)

selectSum

public GroupByAggregator selectSum(String path)

selectAverage

public GroupByAggregator selectAverage(String path)

selectMaxValue

public GroupByAggregator selectMaxValue(String path)

selectMaxEntry

public GroupByAggregator selectMaxEntry(String path)

selectMinValue

public GroupByAggregator selectMinValue(String path)

selectMinEntry

public GroupByAggregator selectMinEntry(String path)

aggregate

public void aggregate(SpaceEntriesAggregatorContext context)

Specified by:

aggregate in class SpaceEntriesAggregator<GroupByResult>

aggregateIntermediateResult

public void aggregateIntermediateResult(GroupByResult partitionResult)

Specified by:

aggregateIntermediateResult in class SpaceEntriesAggregator<GroupByResult>

getIntermediateResult

public GroupByResult getIntermediateResult()

Specified by:

getIntermediateResult in class SpaceEntriesAggregator<GroupByResult>

getFinalResult

public Object getFinalResult()

Overrides:

getFinalResult in class SpaceEntriesAggregator<GroupByResult>

setRawEntryConverter

protected void setRawEntryConverter(com.gigaspaces.internal.query.RawEntryConverter rawEntryConverter)

Overrides:

setRawEntryConverter in class SpaceEntriesAggregator<GroupByResult>

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException