org.axonframework.eventhandling.async

Class EventProcessorTask

java.lang.Object

org.axonframework.eventhandling.async.EventProcessorTask

All Implemented Interfaces:

Runnable

public class EventProcessorTask
extends Object
implements Runnable

Scheduler that keeps track of (Event processing) tasks that need to be executed sequentially.

Since:

1.0

Author:

Allard Buijze

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	EventProcessorTask.ShutdownCallback Callback that allows the SequenceManager to receive a notification when this scheduler finishes processing events.

Constructor Summary

Constructors

Constructor and Description
EventProcessorTask(Executor executor, EventProcessorTask.ShutdownCallback shutDownCallback) Initialize a scheduler using the given executor.

Method Summary

Modifier and Type	Method and Description
void	run()
boolean	scheduleEvents(List<? extends EventMessage<?>> events, Consumer<List<? extends EventMessage<?>>> processor) Schedules a batch of events for processing.

Methods inherited from class java.lang.Object

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

Constructor Detail

EventProcessorTask

public EventProcessorTask(Executor executor,
                          EventProcessorTask.ShutdownCallback shutDownCallback)

Initialize a scheduler using the given executor. This scheduler uses an unbounded queue to schedule events.

Parameters:

executor - The executor service that will process the events

shutDownCallback - The callback to notify when the scheduler finishes processing events

Method Detail

scheduleEvents

public boolean scheduleEvents(List<? extends EventMessage<?>> events,
                              Consumer<List<? extends EventMessage<?>>> processor)

Schedules a batch of events for processing. Will schedule a new invoker task if none is currently active.

If the current scheduler is in the process of being shut down, this method will return false.

This method is thread safe.

Parameters:

events - the events to schedule

processor - the component that will do the actual processing of the events

Returns:

true if the event was scheduled successfully, false if this scheduler is not available to process events

Throws:

IllegalStateException - if the queue in this scheduler does not have the capacity to add this event

run

public void run()

Specified by:

run in interface Runnable