Hi All,
i have followed many threads about Model 2 architecture, and at the
hand i got
this picture(please correct me if i am wrong) listed below shortly :
- JSP 'sends' the request to the Servlet/controller
- based on 'path info' the Servlet fetches from an Hashtable the correct
Action class to instantiate
- action class does the logic, populates a JavaBean and send the request to
the JSP
- the JSP fetches the request data and present it to the User
Well, in this scenario something is not clear to me:
- how can the Action class know the URL of the JSP page to send the
response??? i don't want to hardcode it into the java class, and in one
thread Craig McClanahan wrote
>Now, I tend to add a public method in my controller servlet that can look
up actual page names from a logical name (as >someone else in this thread
recommended).
well i did not get this idea......could u pls explain me more?? for example,
suppose that i store all the URL of the JSP in the config file..and then
populate (in the init() of the servlet) an Hashtable with all the
URL....then when i communicate it to the Action?? do i say it when i create
the Action class that i am going to use???
the other thing that is not clear is:
- how can i use a single instance of the various Action classes that i am
going to use??? sorry for this question, but i don't know much about
performance............will i have much disadvantages if i instantiate
every request a new Action class??
can anyone that got the picture explain it better to me??
sorry Craig, Kevin and Daniel for bothering again...
thanx to all in advance
best regards
marco
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