com.espertech.esper.pattern.observer

Class TimerScheduleObserverFactory

java.lang.Object

com.espertech.esper.pattern.observer.TimerScheduleObserverFactory

All Implemented Interfaces:

ObserverFactory, MetaDefItem, Serializable

public class TimerScheduleObserverFactory
extends Object
implements ObserverFactory, MetaDefItem, Serializable

Factory for ISO8601 repeating interval observers that indicate truth when a time point was reached.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected MatchedEventConvertor	convertor
protected com.espertech.esper.pattern.observer.TimerScheduleObserverFactory.TimerScheduleSpecCompute	scheduleComputer Convertor.
protected TimerScheduleSpec	spec

Constructor Summary

Constructors

Constructor and Description
TimerScheduleObserverFactory()

Method Summary

Modifier and Type	Method and Description
TimerScheduleSpec	computeSpecDynamic(MatchedEventMap beginState, PatternAgentInstanceContext context)
boolean	isNonRestarting()
EventObserver	makeObserver(PatternAgentInstanceContext context, MatchedEventMap beginState, ObserverEventEvaluator observerEventEvaluator, EvalStateNodeNumber stateNodeId, Object observerState, boolean isFilterChildNonQuitting) Make an observer instance.
void	setObserverParameters(List<ExprNode> parameters, MatchedEventConvertor convertor, ExprValidationContext validationContext) Sets the observer object parameters.

Methods inherited from class java.lang.Object

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

Field Detail

scheduleComputer

protected transient com.espertech.esper.pattern.observer.TimerScheduleObserverFactory.TimerScheduleSpecCompute scheduleComputer

Convertor.

convertor

protected transient MatchedEventConvertor convertor

spec

protected TimerScheduleSpec spec

Constructor Detail

TimerScheduleObserverFactory

public TimerScheduleObserverFactory()

Method Detail

setObserverParameters

public void setObserverParameters(List<ExprNode> parameters,
                                  MatchedEventConvertor convertor,
                                  ExprValidationContext validationContext)
                           throws ObserverParameterException

Description copied from interface: ObserverFactory

Sets the observer object parameters.

Specified by:

setObserverParameters in interface ObserverFactory

Parameters:

parameters - is a list of parameters

convertor - for converting partial pattern matches to event-per-stream for expressions

validationContext - context

Throws:

ObserverParameterException - thrown to indicate a parameter problem

makeObserver

public EventObserver makeObserver(PatternAgentInstanceContext context,
                                  MatchedEventMap beginState,
                                  ObserverEventEvaluator observerEventEvaluator,
                                  EvalStateNodeNumber stateNodeId,
                                  Object observerState,
                                  boolean isFilterChildNonQuitting)

Description copied from interface: ObserverFactory

Make an observer instance.

Specified by:

makeObserver in interface ObserverFactory

Parameters:

context - - services that may be required by observer implementation

beginState - - start state for observer

observerEventEvaluator - - receiver for events observed

stateNodeId - - optional id for the associated pattern state node

observerState - - state node for observer

isFilterChildNonQuitting - true for non-quitting filter

Returns:

observer instance

isNonRestarting

public boolean isNonRestarting()

Specified by:

isNonRestarting in interface ObserverFactory

computeSpecDynamic

public TimerScheduleSpec computeSpecDynamic(MatchedEventMap beginState,
                                            PatternAgentInstanceContext context)