net.openhft.chronicle.core.threads

Interface VanillaEventHandler

All Known Subinterfaces:

EventHandler

All Known Implementing Classes:

CancellableTimer.ScheduledEventHandler

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface VanillaEventHandler

Represents an event handler that performs actions within an event loop.

This interface should be implemented by classes that handle specific events or tasks within an event loop. The action() method is responsible for performing the necessary actions or tasks.

The event loop can service multiple event handlers, and the frequency at which any particular handler is serviced is influenced by the handler's priority as well as the overall activity within the event loop.

Method Summary

Modifier and Type	Method and Description
boolean	action() Performs a unit of work on the event loop thread.

Method Detail

action

boolean action()
        throws InvalidEventHandlerException,
               InvalidMarshallableException

Performs a unit of work on the event loop thread. This method should return quickly without blocking.

Returning true biases the scheduler to call this handler again without delay. Throwing InvalidEventHandlerException.reusable() removes the handler from the EventLoop and must have no side effects.

Returns:

true if more work is expected imminently; false otherwise

Throws:

InvalidEventHandlerException - to remove this handler from the event loop

InvalidMarshallableException - if a DTO validation fails