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Posted to user@struts.apache.org by Mansour <ma...@yahoo.com> on 2007/04/16 03:02:55 UTC
intercept return, and Interceptor implementing ServletRequestAware
I can not figure out how to configure an interceptor. What does the
returned string represents ? I mean if I have an action that has one or
more interceptors, how would the returned string of the interceptor
affects the execution of this action ?
Any examples ?
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Re: intercept return, and Interceptor implementing ServletRequestAware
Posted by Mansour <ma...@yahoo.com>.
Dave Newton wrote:
> --- Mansour <ma...@yahoo.com> wrote:
>
>> What's the point then of having an action, if the
>> intercept method is going to execute the action. Why
>>
>
>
>> don't I just put the action code in an interceptor ?
>>
>
> Because interceptors are normally called for *groups*
> of actions, not just one... just like it says in the
> first couple of paragraphs at the top of:
>
> http://struts.apache.org/2.x/docs/interceptors.html
>
> For instance, "validation" is a cross-cutting concern.
> So it makes sense to move it away from the code that
> decides what to to with the validated data.
>
>
GOTCHA, so if I have a common method in all the action and I need to
execute some code that is generic to all of them, then makes scenes to
put in an interceptor. coooooool.
Ok, another question. If I have an custom interceptor does this sop
another interceptor from execution. For example, I have this code:
public String intercept(ActionInvocation invocation) throws Exception {
AccountAction action = (AccountAction)invocation.getAction();
return action.execute();
}
shouldn't the interceptor that's responsible for setting the values on
the action, gets executed too ?
in my case it's not. Why? here' my config:
<action name="accountAction" class="billing.AccountAction" >
<interceptor-ref name="prepareAccount"></interceptor-ref>
<result name="SUCCESS">/pages/accountView.jsp</result>
<result name="ERROR">/pages/exception.jsp</result>
<result name="input">/pages/accountView.jsp</result>
</action>
> Of course you *could* put all your action code into an
> interceptor and define an interceptor stack for every
> action-that-no-longer-had-an-action. There are many
> ways to make things harder--don't get me wrong, I
> applaud your efforts to find them.
>
I am trying to make things easier :P but definitely always interested in
finding a harder way :P
> You could put all your action code into filters, then
> you wouldn't even need servlets. Or put everything
> inside a JSP, then you wouldn't even need to compile
> or worry about whether or not your container
> hot-deploys.
>
This will be a great idea. But then I will never be using struts. You
know, it has to be used in a away or another. Someone must use it. It's
unfair for the opensource community to write softwares and no one uses
them. :P lol
> d.
>
>
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Re: intercept return, and Interceptor implementing ServletRequestAware
Posted by Dave Newton <ne...@yahoo.com>.
--- Mansour <ma...@yahoo.com> wrote:
> What's the point then of having an action, if the
> intercept method is going to execute the action. Why
> don't I just put the action code in an interceptor ?
Because interceptors are normally called for *groups*
of actions, not just one... just like it says in the
first couple of paragraphs at the top of:
http://struts.apache.org/2.x/docs/interceptors.html
For instance, "validation" is a cross-cutting concern.
So it makes sense to move it away from the code that
decides what to to with the validated data.
Of course you *could* put all your action code into an
interceptor and define an interceptor stack for every
action-that-no-longer-had-an-action. There are many
ways to make things harder--don't get me wrong, I
applaud your efforts to find them.
You could put all your action code into filters, then
you wouldn't even need servlets. Or put everything
inside a JSP, then you wouldn't even need to compile
or worry about whether or not your container
hot-deploys.
d.
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Re: intercept return, and Interceptor implementing ServletRequestAware
Posted by Mansour <ma...@yahoo.com>.
Musachy Barroso wrote:
> http://struts.apache.org/2.x/docs/interceptors.html
>
> http://struts.apache.org/2.x/docs/writing-interceptors.html
>
What 's the point then of having an action, if the intercept method is
going to execute the action. Why don't I just put the action code in an
interceptor ?
>
> On 4/15/07, Mansour <ma...@yahoo.com> wrote:
>>
>> I can not figure out how to configure an interceptor. What does the
>> returned string represents ? I mean if I have an action that has one or
>> more interceptors, how would the returned string of the interceptor
>> affects the execution of this action ?
>>
>> Any examples ?
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>
>
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Re: intercept return, and Interceptor implementing ServletRequestAware
Posted by Musachy Barroso <mu...@gmail.com>.
http://struts.apache.org/2.x/docs/interceptors.html
http://struts.apache.org/2.x/docs/writing-interceptors.html
On 4/15/07, Mansour <ma...@yahoo.com> wrote:
>
> I can not figure out how to configure an interceptor. What does the
> returned string represents ? I mean if I have an action that has one or
> more interceptors, how would the returned string of the interceptor
> affects the execution of this action ?
>
> Any examples ?
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
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