You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@struts.apache.org by Joe Germuska <Jo...@Germuska.com> on 2004/10/15 17:21:55 UTC
RE: help : Thanks Joe - chaining actions in Struts -
At 7:24 PM +0530 10/15/04, sachin wrote:
>Thanks Joe
>
>I have quit the idea of chaining actions.
>It is true that Struts was never designed to for action forwarding.
>My main concern was to have some common functionality independantly
>which i can do better by creating own replica of Action , ActionForm and
>ActionServlet etc . . and chaining can be avoided altogether ..
Note that where you might extend ActionServlet, you might also be
able to use Struts PlugIns or J2EE ServletContextListeners to
initialize supporting classes at application startup time instead.
The reason to choose PlugIns is if you want your PlugIn to be aware
of the Struts Module in which it was configured, or if you are still
using Servlet 2.2, which didn't have ServletContextListener (or, if
you're like me and you've been using PlugIns for a long time and are
too lazy to switch.)
Typically, a PlugIn (or SCL) gets instantiated and triggered during
the setup process of the ServletContext. The way I typically use it
is to instantiate and configure some business expert class and put
that class in the ServletContext under a well known key. Then, my
Actions can reliably get that class out of the ServletContext and use
it as a facade over business processes about which they shouldn't
know any more than necessary. (I'll often have a base Action class
which provides a typesafe "getXXXExpert" method which knows the
ServletContext key and makes that all a little cleaner. More
recently, we've inverted that model to make a base action which
builds an ActionContext bean which encapsulates the request,
response, form, and mapping, and which then has property accessors
for these kinds of experts as well. It's a little more setup ahead
of time, but I'm finding it a nice way to do things. On the dev
list, we've talked a bit about making this something that is built in
to Struts, but it hasn't gotten much past talk.
I suppose strictly speaking, this isn't all that different from your
actions getting a custom subclass of ActionServlet and using it as
the expert, but I'm more comfortable with a sharper separation of
concerns.
Joe
--
Joe Germuska
Joe@Germuska.com
http://blog.germuska.com
"In fact, when I die, if I don't hear 'A Love Supreme,' I'll turn
back; I'll know I'm in the wrong place."
- Carlos Santana
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Re: Help : creating dynamic styleId inside Logic:iterate
Posted by Derek Broughton <de...@pointerstop.ca>.
On Monday 29 November 2004 14:27, Aidas Semezys wrote:
> It is not allowed to have just part of attribute value as JSP expression.
> Here is the correct solution:
> <html:text name="iType" styleId="<%="sp" + iterator%>"
> property="sharesPer"/>
Thanks! That solved a problem I was about to ask ...
--
derek
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Re: Help : creating dynamic styleId inside Logic:iterate
Posted by Aidas Semezys <ai...@gmail.com>.
It is not allowed to have just part of attribute value as JSP expression.
Here is the correct solution:
<html:text name="iType" styleId="<%="sp" + iterator%>" property="sharesPer"/>
Peace,
Aidas
sachin <sa...@paradyne.co.in> wrote:
> I have a jsp page in which i have a loop and a text field inside it.
> Now to create a dynamic styleid i have used the following code..
>
> but when this code executes , it does not print the actual value of itrator .
> It should give styleId="sp0" , styleId="sp1" , styleId="sp2" likewise ..
> but it prints simply ' styleId="sp<% = itrator %>" ' for all the fields .
>
> can someone provide a solution to create dynamic styleId ... ?
>
> <% int itrator=0; %>
> <logic:iterate id="iType" property="investorTypeList" name="sharePatternBean">
> <html:text name="iType" styleId="sp<% = itrator %>" property="sharesPer"
> readonly="true" />
> <%itrator++;%>
> </logic:iterate>
>
> Regards,
> Sachin Hegde,
> Software Developer,
> Paradyne Infotech Limited,
> Mumbai
> 022-38546711
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Help : creating dynamic styleId inside Logic:iterate
Posted by sachin <sa...@paradyne.co.in>.
I have a jsp page in which i have a loop and a text field inside it.
Now to create a dynamic styleid i have used the following code..
but when this code executes , it does not print the actual value of itrator .
It should give styleId="sp0" , styleId="sp1" , styleId="sp2" likewise ..
but it prints simply ' styleId="sp<% = itrator %>" ' for all the fields .
can someone provide a solution to create dynamic styleId ... ?
<% int itrator=0; %>
<logic:iterate id="iType" property="investorTypeList" name="sharePatternBean">
<html:text name="iType" styleId="sp<% = itrator %>" property="sharesPer"
readonly="true" />
<%itrator++;%>
</logic:iterate>
Regards,
Sachin Hegde,
Software Developer,
Paradyne Infotech Limited,
Mumbai
022-38546711
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org