server/io.spine.system.server/TraceEventObserver

TraceEventObserver

public final class TraceEventObserver extends AbstractEventSubscriber

An event subscriber which listens to dispatching events.

Constructors

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public void TraceEventObserver(ContextSpec context, TracerFactory tracing)

Inherited functions

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public boolean canDispatch(E envelope)
public boolean canDispatch(EventEnvelope event)
Checks if this dispatcher can dispatch the given message.
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public void checkNotRegistered()
Verifies that this instance is NOT registered yet.
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public void checkRegistered()
Verifies that this instance is already registered.
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public abstract DispatchOutcome dispatch(E envelope)
Dispatches the message contained in the passed envelope and returns the outcome.
public final DispatchOutcome dispatch(EventEnvelope event)
Dispatches the event to the handling method.
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public boolean dispatchesEvents()
Verifies if this instance dispatches at least one event.
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public boolean dispatchesExternalEvents()
Verifies if this instance dispatches at least one external event.
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public ImmutableSet<EventClass> domesticEventClasses()
Obtains classes of domestic events processed by this dispatcher.
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public ImmutableSet<EventClass> eventClasses()
Obtains classes of all events processed by this dispatcher.
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public ImmutableSet<EventClass> externalEventClasses()
Obtains classes of external events processed by this dispatcher.
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protected DispatchOutcome handle(EventEnvelope event)
Handles an event dispatched to this subscriber instance.
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public boolean isRegistered()
Determines if this instance is already registered with a Bounded Context.
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public abstract ImmutableSet<C> messageClasses()
public ImmutableSet<EventClass> messageClasses()
Obtains a set of message classes that can be processed by this dispatcher.
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public void registerWith(BoundedContext context)
Registers this instance as a part of the given Bounded Context.