com.espertech.esper.epl.script

Class ExprNodeScriptEvalBase

java.lang.Object

com.espertech.esper.epl.script.ExprNodeScriptEvalBase

All Implemented Interfaces:

ExprEvaluator, ExprEvaluatorEnumeration

Direct Known Subclasses:

ExprNodeScriptEvalJSR223, ExprNodeScriptEvalMVEL

public abstract class ExprNodeScriptEvalBase
extends Object
implements ExprEvaluator, ExprEvaluatorEnumeration

Field Summary

Fields

Modifier and Type	Field and Description
protected SimpleNumberCoercer	coercer
protected EventType	eventTypeCollection
protected String[]	names
protected ExprEvaluator[]	parameters
protected Class	returnType
protected String	scriptName
protected String	statementName

Constructor Summary

Constructors

Constructor and Description
ExprNodeScriptEvalBase(String scriptName, String statementName, String[] names, ExprEvaluator[] parameters, Class returnType, EventType eventTypeCollection)

Method Summary

Modifier and Type	Method and Description
EventBean	evaluateGetEventBean(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
Collection<EventBean>	evaluateGetROCollectionEvents(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
Collection	evaluateGetROCollectionScalar(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context)
Class	getComponentTypeCollection()
EventType	getEventTypeCollection(EventAdapterService eventAdapterService, int statementId)
EventType	getEventTypeSingle(EventAdapterService eventAdapterService, int statementId)
Class	getType() Returns the type that the node's evaluate method returns an instance of.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.epl.expression.core.ExprEvaluator

evaluate

Field Detail

scriptName

protected final String scriptName

statementName

protected final String statementName

names

protected final String[] names

parameters

protected final ExprEvaluator[] parameters

returnType

protected final Class returnType

eventTypeCollection

protected final EventType eventTypeCollection

coercer

protected final SimpleNumberCoercer coercer

Constructor Detail

ExprNodeScriptEvalBase

public ExprNodeScriptEvalBase(String scriptName,
                              String statementName,
                              String[] names,
                              ExprEvaluator[] parameters,
                              Class returnType,
                              EventType eventTypeCollection)

Method Detail

getType

public Class getType()

Description copied from interface: ExprEvaluator

Returns the type that the node's evaluate method returns an instance of.

Specified by:

getType in interface ExprEvaluator

Returns:

type returned when evaluated

getEventTypeCollection

public EventType getEventTypeCollection(EventAdapterService eventAdapterService,
                                        int statementId)
                                 throws ExprValidationException

Specified by:

getEventTypeCollection in interface ExprEvaluatorEnumeration

Throws:

ExprValidationException

evaluateGetROCollectionEvents

public Collection<EventBean> evaluateGetROCollectionEvents(EventBean[] eventsPerStream,
                                                           boolean isNewData,
                                                           ExprEvaluatorContext context)

Specified by:

evaluateGetROCollectionEvents in interface ExprEvaluatorEnumeration

getComponentTypeCollection

public Class getComponentTypeCollection()
                                 throws ExprValidationException

Specified by:

getComponentTypeCollection in interface ExprEvaluatorEnumeration

Throws:

ExprValidationException

evaluateGetROCollectionScalar

public Collection evaluateGetROCollectionScalar(EventBean[] eventsPerStream,
                                                boolean isNewData,
                                                ExprEvaluatorContext context)

Specified by:

evaluateGetROCollectionScalar in interface ExprEvaluatorEnumeration

getEventTypeSingle

public EventType getEventTypeSingle(EventAdapterService eventAdapterService,
                                    int statementId)
                             throws ExprValidationException

Specified by:

getEventTypeSingle in interface ExprEvaluatorEnumeration

Throws:

ExprValidationException

evaluateGetEventBean

public EventBean evaluateGetEventBean(EventBean[] eventsPerStream,
                                      boolean isNewData,
                                      ExprEvaluatorContext context)

Specified by:

evaluateGetEventBean in interface ExprEvaluatorEnumeration