Package com.activeviam.tech.aggregation.api.impl

Class AAggregation<FunT extends IAggregationFunction>

java.lang.Object

com.activeviam.tech.aggregation.api.impl.AAggregation<FunT>

Type Parameters:

FunT - The type of the aggregation function.

All Implemented Interfaces:

IAggregation, IGenericAggregation, Serializable

Direct Known Subclasses:

HistoryAggregation

public abstract class AAggregation<FunT extends IAggregationFunction>
extends Object
implements IAggregation

Base class for implementing IAggregation classes.

Author:

ActiveViam

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.activeviam.tech.aggregation.api.IGenericAggregation

IGenericAggregation.AggregationChunksSetting

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	getAggregatedDataType()	Returns the type of the result of the aggregation.
FunT	getAggregationFunction()	Returns the associated function.
String	getFieldName()	Returns the name of the input field on which this aggregation is being performed.
int	getInputDataType()	Returns the type of the source data.
int	hashCode()
String	toString()
Object	writeReplace()	Returns the custom serializer for aggregations.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.activeviam.tech.aggregation.api.IAggregation

bindSource, bindSources, getSourceIdentifiers, getSourceTypes

Methods inherited from interface com.activeviam.tech.aggregation.api.IGenericAggregation

bindAggregates, getChunksSetting

Method Details

getFieldName

public String getFieldName()

Description copied from interface: IAggregation

Returns the name of the input field on which this aggregation is being performed.

Specified by:

getFieldName in interface IAggregation

getAggregationFunction

public FunT getAggregationFunction()

Description copied from interface: IGenericAggregation

Returns the associated function.

Specified by:

getAggregationFunction in interface IAggregation

Specified by:

getAggregationFunction in interface IGenericAggregation

getInputDataType

public int getInputDataType()

Description copied from interface: IAggregation

Returns the type of the source data.

Specified by:

getInputDataType in interface IAggregation

Returns:

The type of the source data

getAggregatedDataType

public int getAggregatedDataType()

Description copied from interface: IGenericAggregation

Returns the type of the result of the aggregation.

If this aggregation manipulates vectors, the aggregated type should be such that Types.isArray(int) returns true. Vectors require special memory management provided out of the box as soon as the aggregated type is an array type.

Specified by:

getAggregatedDataType in interface IGenericAggregation

writeReplace

public Object writeReplace()
                    throws ObjectStreamException

Description copied from interface: IGenericAggregation

Returns the custom serializer for aggregations. The abstract base classes for aggregations implement this method and provide serializers, for other implementations the user must provide their own serializers.

Specified by:

writeReplace in interface IGenericAggregation

Throws:

ObjectStreamException

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object