Observes (common-events 1.0.1-3.11.0-126364 API)

```
@Target(value=METHOD)
@Retention(value=RUNTIME)
public @interface Observes
```
Identifies callback methods in event observers.
Optional attributes are used to indicate:
event qualifiers (Any by default);
whether the successful execution of the method is Observes.Kind.critical to the client. Non critical methods may be Observes.Kind.resilient or Observes.Kind.safe (the default), depending on whether they should or should not execute after previous critical failures;
the delay during which events are accumulated before being delivered.

Optional Elements
Modifier and Type	Optional Element and Description
`long`	`every` The minimum duration in milliseconds between the delivery of two subsequent events.
`Observes.Kind`	`kind` The kind of the observer `Observes.Kind.safe` by default.
`String[]`	`value` The event qualifiers.

Annotation Type Observes