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Add Section About Static Methods in README (#2)

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Add paragraph about static methods in README

Co-authored-by: kske <kai@kske.dev>
Reviewed-on: https://git.kske.dev/zdm/event-bus/pulls/2
Reviewed-by: kske <kai@kske.dev>
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Leon Hofmeister 2020-09-26 09:59:08 +02:00 committed by kske
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@ -51,6 +51,15 @@ public class SimpleEventListener implements EventListener {
In this case, an event bus is created and used locally.
In a more sophisticated example the class would acquire an external event bus that is used by multiple classes.
Note that creating static event handlers like this
```java
@Event
private static void onSimpleEvent(SimpleEvent event) ...
```
is technically possible, however you would still have to create an instance of the event listener to register it at an event bus.
## Event handlers for subtypes
On certain occasions its practical for an event handler to accept both events of the specified type, as well as subclasses of that event.