If your looking to create a good framework, then take a look at the
article in the Novemer 99 Java Report, "JSP and Servlets: A powerful
pair."
http://www.javareport.com/html/from_pages/ftp_col.shtml
Its an excellent article explaining the pros and cons of different
design patterns using JSP and servlets.
-Brent
--- jguich <[EMAIL PROTECTED]> wrote:
> Hi,
>
> thanks for all that answered.
>
> here are the statistics:
>
> jsp -> ejb : Tom, Filip, Tye, Vivek, Ian : 5 votes
> servlet -> ejb -> jsp : Eric, Sachin, Javier : 3 votes
> servlet -> jsp -> ejb: Vivek, GUICH : 2 votes
>
> So', i think that jsp -> ebj wins.
>
> Trying to expand these 3 possibilities:
>
> a) jsp -> ejb
>
> 1) the browser sends data to the jsp
> 2) the jsp calls a SFS or a SLS (stateless session) that has the
> business logic, and fetches data from db. it then sends the data back
> to the jsp
> 3) jsp sends the data back to the page
>
> b) servlet -> ejb ->jsp
>
> 1) the browser sends data to the servlet. this one manages the
> session
> 2) the servlet calls a StateFul Session (SFS) EJB that has the
> business logic. This SFS access the db and create beans to the jsp.
> stateful or stateless?
> 3) the jsp uses this beans to create the presentation, and send
> it directly to the browser
>
> c) servlet -> jsp -> ejb
>
> 1) browser sends data to the servlet. this one manages the
> session, security, etc.
> 2) the servlet sends the parameters to jsp
> 3) the jsp gets data from a Entity EJB, creates the html and
> send back to the browser.
>
> is this really what you (all) think?
>
> ps: before this discussion, i would vote on (c). after thinking a
> while, i think that (b) instead of (c) is the best way, because:
> 1. it lets the servlet do what it really knows how to do: manage
> session's, security, etc
> 2. it uses ejb to handle the busines logic with state??? sessions
> 3. it lets we create a framework of generic jsp outputs.
>
> ps2: is a good approach servlet (with business logic) calling jsp
> directly?
>
> ps3: i'm thinking in creating a good framework for lowering the
> maintenance cost.
>
>
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