Package com.gigaspaces.query.aggregators

Class SingleValueFunctionAggregator<T extends Serializable & Comparable>

java.lang.Object

com.gigaspaces.query.aggregators.SpaceEntriesAggregator<T>

com.gigaspaces.query.aggregators.AbstractPathAggregator<T>

com.gigaspaces.query.aggregators.SingleValueFunctionAggregator<T>

All Implemented Interfaces:

SmartExternalizable, Externalizable, Serializable, Cloneable

public class SingleValueFunctionAggregator<T extends Serializable & Comparable>
extends AbstractPathAggregator<T>

Since:

15.8.0

Author:

Alon Shoham

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SingleValueFunctionAggregator()
SingleValueFunctionAggregator(FunctionCallColumn functionCallColumn)

Method Summary

Modifier and Type	Method	Description
void	aggregate(SpaceEntriesAggregatorContext context)
void	aggregateIntermediateResult(T partitionResult)
Object	apply(Object value)
String	getDefaultAlias()
T	getIntermediateResult()
String	getName()
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

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

getFunctionCallColumn, getPath, getPathValue, setFunctionCallColumn, setPath

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

as, clone, getAlias, getFinalResult, getSQLQuery, handleIntermediateResultOfDbStorage, handleIntermediateResultOfMemoryStorage, isIndexUsed, setAggregatorContext, setRawEntryConverter, skipFullScanSupported, skipProcessedUidStore, toObject

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.gigaspaces.serialization.SmartExternalizable

enabledSmartExternalizableWithReference

Constructor Details

SingleValueFunctionAggregator

public SingleValueFunctionAggregator(FunctionCallColumn functionCallColumn)

SingleValueFunctionAggregator

public SingleValueFunctionAggregator()

Method Details

getDefaultAlias

public String getDefaultAlias()

Specified by:

getDefaultAlias in class SpaceEntriesAggregator<T extends Serializable & Comparable>

aggregate

public void aggregate(SpaceEntriesAggregatorContext context)

Specified by:

aggregate in class SpaceEntriesAggregator<T extends Serializable & Comparable>

aggregateIntermediateResult

public void aggregateIntermediateResult(T partitionResult)

Specified by:

aggregateIntermediateResult in class SpaceEntriesAggregator<T extends Serializable & Comparable>

getIntermediateResult

public T getIntermediateResult()

Specified by:

getIntermediateResult in class SpaceEntriesAggregator<T extends Serializable & Comparable>

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class AbstractPathAggregator<T extends Serializable & Comparable>

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class AbstractPathAggregator<T extends Serializable & Comparable>

Throws:

IOException

ClassNotFoundException

getName

public String getName()

Specified by:

getName in class AbstractPathAggregator<T extends Serializable & Comparable>

apply

public Object apply(Object value)