[Ruby] Catching an error when using class methods (Ryan Davis)

[Ofer Matan]

Ryan/Evan

The reason I want to do this is similar to the 2003 post I have a open
webservices request object from another library that I am caching and
reusing each in multiple methods:

request_object.CallTheWebserviceINeed

The cached object goes stale and raises an error - so I need to
reinitialize. I'd like to avoid writing again and again

begin
  request_object.CallTheWebserviceINeed
rescue ErrorFromStale
   <reinitialize request_object>
   Retry
end


currently I have something like 

def request_object 
	@request_obj ||= Iniatilize_and_return_request_object
End

I am trying to avoid removing the '||' and reinitializing every time and was
hoping to catch the 'stale' error and only reinitialize then.

Thoughts ?