> I was thinking of a similar approach, > but couldn't come up with a way to populate the lookup table > (initialize it for the first time with data). > > could you please explain how you register activities/places in the > lookup table, so that they are available at run-time ? >
At the moment I simply populate a hash table with factories in a static constructor. > what is the best way to deal with scenario above in GWT MVP ? > > should Activities/Places mimic structure of entity they are related > to ? (forming parallel object hierarchies ? for place/activity/proxy ) I'm not sure what is the best way, I personally use the second approach. While my Entity graph is complex and has cycles, my places extend from a common EntityPlace and the hierarchy is flat and one level only. At the top level I have one place controller, one activity manager, one place history mapper, one activity mapper, and one display area. At the top of the screen I have a CellBrowser that allows a user navigate deep down the object hierarchy, and every time a client clicks on some node, a new activity starts and displays a corresponding view. CellBrowser helped me to deal with the lack of support for nested activities/viewers. Activities that are created when a user clicks on a CellBrowser are complex. They themselves create NestedActivityManager (my implementation that is similar to GWT ActivityManager, except it replaces onPlaceChange(Place) with startActivity(Activity)) to by-pass places and manage nested activities directly. This level, as the top level, also uses MVP, but there is no integration with history tokens and places here. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
