CODEWITHSUNDEEP
gwtgwt-platform
caarlos0
caarlos0

Reputation: 20663

passing parameters from one presenter to another with GWT-Platform

I'm trying to pass a parameter that I have loaded on a presenter to another presenter, a car from some client, for example.

What's the best way to do this? Using the gatekeeper? Any example?

PS: I using DI with gin and the GWT-Platform framework.

Upvotes: 3

Views: 3925

Answers (3)

cellepo
cellepo

Reputation: 4529

See GWTP doc & blog:

Upvotes: 0

z00bs
z00bs

Reputation: 7498

If the presenter should be loaded when the event is fired you can use a ProxyEvent. Have a look at http://code.google.com/p/gwt-platform/wiki/GettingStarted?tm=6#Attaching_events_to_proxies and http://arcbees.wordpress.com/2010/08/31/using-proxyevent/.

Upvotes: 5

Mikael Couzic
Mikael Couzic

Reputation: 12963

If you want to reduce coupling, you should create a custom event, CarLoadedEvent or something. Use GWTP Plugin for that, it works great. Then have your presenter that wants to catch that event implement CarLoadedHandler, and in its onBind() method, make it register to the eventBus :

@Override
protected void onBind() {
super.onBind();
registerHandler(getEventBus().addHandler(CarLoadedEvent.TYPE, this));
}

Finally, when a car is loaded, fire an event :

CarLoadedEvent.fire(getEventBus(), myLoadedCar);

Upvotes: 3

Related Questions