Eclipse4/RCP/Modeled UI/Listening to Model Changes
When the model changes and it is not a no-op (for example, setting its label to its current label), an event will be dispatched to all interested event handlers. Eclipse 4 uses a global listener pattern so all handler subscriptions are done through the event broker.
Topics for event subscriptions can be generated from the UIEvents class.
// subscribe to all events generated from MUILabels eventBroker.subscribe(UIEvents.buildTopic(UIEvents.UILabel.TOPIC), eventHandler); // subscribe only to events generated from MItems's selected attribute being switched eventBroker.subscribe(UIEvents.buildTopic(UIEvents.Item.TOPIC, UIEvents,Item.SELECTED), eventHandler);