Best practice for storing globally required objects in GWT

Question

I am starting to develop a GWT application in MVP style (GWTP) and which uses Spring security for authentication and authorization on server side.

In many views of the application, I have to enable or disable controls with respect to a granted authority of the current user. I already have an RPC service which provides access to a userDetailsDto containing all the necessary information.

Now my question: What is the best place to store the user DTO on client side?

Since the user rights are relevant in many presenters, I would have to pass it around everywhere. Alternatively, I could set an RPC service instance in every presenter and requets the user details each time (probably cached on client-side). But i don't like the idea of having a user RPC service in each presenter just for this purpose.

To be honest, I'd rather would prefer a central registry where to put the UserDetails object and which is accessable from anywhere in my app. Is there already such a registry in GWT?

As in my example, you might often be confronted with horizontally used objects. How to deal with them in GWT?

Answer 1

Simply store your current user in public static variable. It will be accessible from everywhere.