URLMapping is excellent, and simplifies most of the use cases.
There is one use case where using the URLMapping tag can be a bit tricky.

Imagine you have a business method that you are sure that is only called internally by your application if a certain condition is applied (example: the user is logged in).
You want that the call to that method (via [EventHandler]) changes the URL, but you don’t want the reverse: if the user fills up the url, you want the method to be only called if a condition applies (i.e. The user is Logged In).

For solving this case, I would recommend adding a new argument to URLMapping: “direction = [fromBrowser; toBrowser; both]“. It would indicate if that tag 1- Listens ONLY to URL changes calling the method; 2- Updates ONLY the URL 3- Does both things. This way, the following would be possible:

[EventHandler("BusinessEvent.DO_OPERATION")]
[URLMapping(“/myOperation”, direction=”toBrowser”)
public function doBusinessOperation():void { }

[URLMapping(“/myOperation”, direction=”fromBrowser”)
public function tryToDoBusinessOperation():void
{
if (condition) dispatchEvent(new BusinessEvent(BusinessEvent.DO_OPERATION))
}

Want we could use URLMapping like before, by using the direction=”both”, which would be default argument.

What do you think?

Thank you,
THomasB

VELO