Package com.gigaspaces.query.aggregators

Class MaxValueAggregator<T extends Serializable & Comparable>

java.lang.Object

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

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

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

All Implemented Interfaces:

SmartExternalizable, Externalizable, Serializable, Cloneable

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

Since:

10.0

Author:

Niv Ingberg

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MaxValueAggregator()

Method Summary

Modifier and Type	Method	Description
void	aggregate(SpaceEntriesAggregatorContext context)
void	aggregateIntermediateResult(T partitionResult)
String	getDefaultAlias()
T	getIntermediateResult()
String	getName()
String	getSQLQuery(String typeName)
void	handleIntermediateResultOfDbStorage(ResultSet resultSet, ITypeDesc typeDesc)
void	handleIntermediateResultOfMemoryStorage(TypeDataIndex index, TypeData entryType)
boolean	isIndexUsed(Map<String,SpaceIndex> indexes, boolean isMemoryScan)
boolean	skipFullScanSupported(Map<String,SpaceIndex> indexes, boolean isMemoryScan)
boolean	skipProcessedUidStore()

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

getFunctionCallColumn, getPath, getPathValue, readExternal, setFunctionCallColumn, setPath, writeExternal

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

as, clone, getAlias, getFinalResult, setAggregatorContext, setRawEntryConverter, 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

MaxValueAggregator

public MaxValueAggregator()

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>

skipProcessedUidStore

public boolean skipProcessedUidStore()

Overrides:

skipProcessedUidStore in class SpaceEntriesAggregator<T extends Serializable & Comparable>

getIntermediateResult

public T getIntermediateResult()

Specified by:

getIntermediateResult in class SpaceEntriesAggregator<T extends Serializable & Comparable>

getName

public String getName()

Specified by:

getName in class AbstractPathAggregator<T extends Serializable & Comparable>

skipFullScanSupported

public boolean skipFullScanSupported(Map<String,SpaceIndex> indexes,
 boolean isMemoryScan)

Overrides:

skipFullScanSupported in class SpaceEntriesAggregator<T extends Serializable & Comparable>

isIndexUsed

public boolean isIndexUsed(Map<String,SpaceIndex> indexes,
 boolean isMemoryScan)

Overrides:

isIndexUsed in class SpaceEntriesAggregator<T extends Serializable & Comparable>

handleIntermediateResultOfMemoryStorage

public void handleIntermediateResultOfMemoryStorage(TypeDataIndex index,
 TypeData entryType)

Overrides:

handleIntermediateResultOfMemoryStorage in class SpaceEntriesAggregator<T extends Serializable & Comparable>

handleIntermediateResultOfDbStorage

public void handleIntermediateResultOfDbStorage(ResultSet resultSet,
 ITypeDesc typeDesc)
                                         throws SQLException

Overrides:

handleIntermediateResultOfDbStorage in class SpaceEntriesAggregator<T extends Serializable & Comparable>

Throws:

SQLException

getSQLQuery

public String getSQLQuery(String typeName)

Overrides:

getSQLQuery in class SpaceEntriesAggregator<T extends Serializable & Comparable>