public interface TriggerController extends Controller
This situation can occur if an extension uses the controllers hook to register a controller for an action. If the owning extension is uninitialized, the controller's update method is not called. Instead, the rules for that action are evaluated to determine whether or not to enable the action. If the user invokes that trigger action while the extension is not initialized, the controller's update method will be called immediately before its handleEvent method is called. But even though the rule evaluation succeeded, the controller's update method may set the disable the action, and if the action is disabled, this method is called to let the user know why the action cannot be performed.
|Modifier and Type||Method and Description|
Returns a message that indicates why the selected action cannot be performed in the active context.