Question

Scenario: my application makes use of uibinder. I have a splitlayout panel with:

• a menu on the left side of the screen with a few hyperlinks (history support);

• a central SimplePanel bound to the historychanged event like this:

  String historyToken = event.getValue();
  content.setWidget(new Label(historyToken));

• not very useful right? Now I want to populate my center panel with a dynamically created widget.

• I know that reflection is not possible on the client-side.

• So how can I decide what class to create / add to my content panel, and avoid an awful if / else if / else if / … block of code, based on the history token?

• I was thinking about using constants in a more elegant “switch” way, but it’s substantially the same solution.

Answer 1

Ok, the solution is using DeferredBinding and write a code generator for a “factory” class.