Action can be a call to a method in a session bean.  If that method returns a 
string, that string is used as the view identifier.  If that method has no 
return (void) or it returns null, then the view specified by view="" is used as 
the view.  If the action returns null AND there is no view="", then the same 
page is just redisplayed.

So, it is a bit confusing, but here's how I use it:

Most of my session beans are SFSBs, conversation scoped.  They have a 
@Begin(join=true) method.  I make this @Begin method return void, and when I 
want to navigate to one of them, I use that @Begin method as the action and 
then specify view="/foo".  That way I make sure there is an active conversation 
when the /foo page is first rendered, so I don't get LazyInitializationErrors.  
I'm not enough of a Seam pro to know if this is the absolutely right way to do 
this but it certainly does work.


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