com.espertech.esper.epl.agg.factory

Class AggregationMethodFactoryAvg

java.lang.Object

com.espertech.esper.epl.agg.factory.AggregationMethodFactoryAvg

All Implemented Interfaces:

AggregationMethodFactory

public class AggregationMethodFactoryAvg
extends Object
implements AggregationMethodFactory

Field Summary

Fields

Modifier and Type	Field and Description
protected Class	childType
protected MathContext	optionalMathContext
protected ExprAvgNode	parent
protected Class	resultType

Constructor Summary

Constructors

Constructor and Description
AggregationMethodFactoryAvg(ExprAvgNode parent, Class childType, MathContext optionalMathContext)

Method Summary

Modifier and Type	Method and Description
AggregationAccessor	getAccessor()
ExprAggregateNodeBase	getAggregationExpression()
AggregationAgent	getAggregationStateAgent(EngineImportService engineImportService, String statementName)
AggregationStateFactory	getAggregationStateFactory(boolean isMatchRecognize)
AggregationStateKey	getAggregationStateKey(boolean isMatchRecognize)
ExprEvaluator	getMethodAggregationEvaluator(boolean join, EventType[] typesPerStream)
Class	getResultType()
boolean	isAccessAggregation()
AggregationMethod	make()
void	validateIntoTableCompatible(AggregationMethodFactory intoTableAgg)

Methods inherited from class java.lang.Object

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

Field Detail

parent

protected final ExprAvgNode parent

childType

protected final Class childType

resultType

protected final Class resultType

optionalMathContext

protected final MathContext optionalMathContext

Constructor Detail

AggregationMethodFactoryAvg

public AggregationMethodFactoryAvg(ExprAvgNode parent,
                                   Class childType,
                                   MathContext optionalMathContext)

Method Detail

isAccessAggregation

public boolean isAccessAggregation()

Specified by:

isAccessAggregation in interface AggregationMethodFactory

getResultType

public Class getResultType()

Specified by:

getResultType in interface AggregationMethodFactory

getAggregationStateKey

public AggregationStateKey getAggregationStateKey(boolean isMatchRecognize)

Specified by:

getAggregationStateKey in interface AggregationMethodFactory

getAggregationStateFactory

public AggregationStateFactory getAggregationStateFactory(boolean isMatchRecognize)

Specified by:

getAggregationStateFactory in interface AggregationMethodFactory

getAccessor

public AggregationAccessor getAccessor()

Specified by:

getAccessor in interface AggregationMethodFactory

make

public AggregationMethod make()

Specified by:

make in interface AggregationMethodFactory

getAggregationExpression

public ExprAggregateNodeBase getAggregationExpression()

Specified by:

getAggregationExpression in interface AggregationMethodFactory

validateIntoTableCompatible

public void validateIntoTableCompatible(AggregationMethodFactory intoTableAgg)
                                 throws ExprValidationException

Specified by:

validateIntoTableCompatible in interface AggregationMethodFactory

Throws:

ExprValidationException

getAggregationStateAgent

public AggregationAgent getAggregationStateAgent(EngineImportService engineImportService,
                                                 String statementName)

Specified by:

getAggregationStateAgent in interface AggregationMethodFactory

getMethodAggregationEvaluator

public ExprEvaluator getMethodAggregationEvaluator(boolean join,
                                                   EventType[] typesPerStream)
                                            throws ExprValidationException

Specified by:

getMethodAggregationEvaluator in interface AggregationMethodFactory

Throws:

ExprValidationException