Hi, Here's a little bit better link about Front Controller.
http://java.sun.com/blueprints/corej2eepatterns/Patterns/FrontController.html
-Rob
Amleto Di Salle wrote:
Hi, Struts contains a Front Controller implementation!
Anyway, if you want to see the Front Controller design pattern and others please visit http://www.corej2eepatterns.com/index.htm
BR Amleto
-----Messaggio originale-----
Da: Chaikin, Yaakov Y (US SSA) [mailto:[EMAIL PROTECTED] Inviato: luned́ 7 giugno 2004 18.30
A: Struts Users Mailing List
Oggetto: RE: Front Controller?
Hi,
I think that MVC and Front Controller are slightly different because MVC (or Model 2) is an "architectural" pattern and Front Controller is
a design pattern.
Front Controller design pattern is a possible solution for the Controller "element" inside the MVC pattern.
Right. So, is there an existing implementation of this somewhere or I would have write my own.
Thanks, Yaakov.
BR Amleto
-----Messaggio originale-----
Da: Chaikin, Yaakov Y (US SSA) [mailto:[EMAIL PROTECTED]
Inviato: luned́ 7 giugno 2004 18.13
A: Struts Users Mailing List
Oggetto: RE: Front Controller?
Model 2 / MVC / Front Controller are all the same thing.
Hmm... No, they are not. Front Controller and MVC are similar, but are
NOT the same design patterns! Front Controller is used for a sequence of predefined steps (like a check out on amazon). MVC is used for separation of Model (data handling), View (presentation handling), Conroller (where to go). Whatever it is, those 2 design patterns are not the same.
In Struts the
"Front Controller" is the "ActionServlet", it receives/handles/dispatches every single request that comes into your web app. You write actions that are like units of functionality, then specify in a mapping file the relationship between URLs and the
Action,
then depending on where the user is going, the ActionServlet will call
the appropriate Action at the appropriate time to handle the user's
request.
Are you suggesting that Struts gives you the ability to specify a sequence of actions? If so, I am not following how one would do that.
From what I understand Struts would give you the ability to specifywhere each action ends up, and in that sense you ARE specifying a sequence of actions. Is that what you mean?
Thanks, Yaakov.
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