Jakarta EE 11.0.0 · jakarta.enterprise.inject.build.compatible.spi.SyntheticObserver

public Interface SyntheticObserver<T>

The event notification function for a synthetic observer defined by SyntheticObserverBuilder. CDI container will create an instance of the event notification function every time when it needs to notify the synthetic observer. Implementations must be public classes with a public zero-parameter constructor; they must not be beans.

Since

4.0

Method Summary

Modifier and Type	Method and Description
public void	observe(EventContext<T> the event context, never `null` event, Parameters the parameter map, never `null` params) Consumes an event.

Method Detail

observe back to summary

observe	back to summary
public void observe(EventContext<T> event, Parameters params) throws Exception Consumes an event. The `EventContext` provides access to the event payload, as well as the `EventMetadata`. The parameter map contains the same values that were passed to the `SyntheticObserverBuilder` that defined the synthetic observer. Parameters event:EventContext<T> the event context, never `null` params:Parameters the parameter map, never `null` Exceptions Exception: checked exception will be wrapped and rethrown as an `ObserverException`

public void observe(EventContext<T> event, Parameters params) throws Exception

Consumes an event. The EventContext provides access to the event payload, as well as the EventMetadata.

The parameter map contains the same values that were passed to the SyntheticObserverBuilder that defined the synthetic observer.

Parameters

event:EventContext<T>: the event context, never null
params:Parameters: the parameter map, never null

Exceptions

Exception:: checked exception will be wrapped and rethrown as an ObserverException