com.espertech.esper.epl.core
Class MethodPollingViewableFactory

java.lang.Object
  com.espertech.esper.epl.core.MethodPollingViewableFactory

public class MethodPollingViewableFactory
extends java.lang.Object

Factory for method-invocation data provider streams.

Nested Class Summary

static class

MethodPollingViewableFactory.MethodMetadataDesc

Constructor Summary

MethodPollingViewableFactory()

Method Summary

static HistoricalEventViewable

createPollMethodView(int streamNumber, MethodStreamSpec methodStreamSpec, EventAdapterService eventAdapterService, EPStatementAgentInstanceHandle epStatementAgentInstanceHandle, MethodResolutionService methodResolutionService, EngineImportService engineImportService, SchedulingService schedulingService, ScheduleBucket scheduleBucket, ExprEvaluatorContext exprEvaluatorContext, VariableService variableService, java.lang.String contextName) Creates a method-invocation polling view for use as a stream that calls a method, or pulls results from cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodPollingViewableFactory

public MethodPollingViewableFactory()

Method Detail

createPollMethodView

public static HistoricalEventViewable createPollMethodView(int streamNumber,
                                                           MethodStreamSpec methodStreamSpec,
                                                           EventAdapterService eventAdapterService,
                                                           EPStatementAgentInstanceHandle epStatementAgentInstanceHandle,
                                                           MethodResolutionService methodResolutionService,
                                                           EngineImportService engineImportService,
                                                           SchedulingService schedulingService,
                                                           ScheduleBucket scheduleBucket,
                                                           ExprEvaluatorContext exprEvaluatorContext,
                                                           VariableService variableService,
                                                           java.lang.String contextName)
                                                    throws ExprValidationException

Creates a method-invocation polling view for use as a stream that calls a method, or pulls results from cache.

Parameters:

streamNumber - the stream number

methodStreamSpec - defines the class and method to call

eventAdapterService - for creating event types and events

epStatementAgentInstanceHandle - for time-based callbacks

methodResolutionService - for resolving classes and imports

engineImportService - for resolving configurations

schedulingService - for scheduling callbacks in expiry-time based caches

scheduleBucket - for schedules within the statement

exprEvaluatorContext - expression evaluation context

Returns:

pollable view

Throws:

ExprValidationException - if the expressions cannot be validated or the method descriptor has incorrect class and method names, or parameter number and types don't match