Ok. I did some thinking about this on the plane and here's what I'm
thinking:

<webwork:action name="foo" id="foo">
  <webwork:param name="bar">123</webwork:param>
  <webwork:param name="baz">456</webwork:param>
</webwork:action> 

The action is executed in the closing tag after the params have been set
and the action is bound into the page context (like a jsp:usebean). This
was really the only way I could think of to have a good lifecycle and be
parameterized. 

Then, later, you can do:

<webwork:push value="@foo">
  <webwork:property value="bar"/>
  <webwork:property value="myGeneratedProperty"/>
</webwork:push>

Which gets the Action from the PageContext and pushes it onto the
ValueStack. You could also just access properties using the
"@foo.bar"...

At least, I think that's how the Ognl notation accesses objects in the
PageContext :-)

Thoughts?

Jason

> -----Original Message-----
> From: Pat Lightbody [mailto:[EMAIL PROTECTED] 
> Sent: Saturday, March 22, 2003 3:23 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [OS-webwork] Action Tag
> 
> 
> Nah, you've got it all wrong. It's really quite a nice way to 
> integrate data in to your UI tags, for example:
> 
> <ww:action name="InfoTypeLoader">
>  <ui:select label="'Select an InfoType'" name="'infoType'" 
> list="possibleInfoTypes"/> </ww:action>
> 
> InfoTypeLoader has a getPossibleInfoTypes() method that 
> returns a List, for example. Without the ww:action tag, you'd 
> have to make all your various actions do this 
> getPossibleInfoTypes() method, which sucks.
> 
> -Pat
> 
> PS: I'm off to Europe for 2 weeks in like 15 minutes, talk to 
> you guys later!
> 
> 
> ----- Original Message -----
> From: "Jason Carreira" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, March 22, 2003 11:21 AM
> Subject: RE: [OS-webwork] Action Tag
> 
> 
> > Ok, having read this thread, I'm trying to figure out what the 
> > intended use of the Action tag is. I've personally never 
> used it, so 
> > perhaps a discussion of the need / usage of it would make the right 
> > thing to do more clear. I understand that the non-deterministic 
> > execution of Actions is a real problem, so a good lifecycle model 
> > should be one requirement. What are the others?
> >
> > I'd rather take a little time and try to do this right than 
> put in a 
> > quick fix. The execute tag just seems a little hacky to me, 
> and it's 
> > one more tag, which has non-trivial requirements of the JSP 
> developer 
> > (i.e. bind an Action to an id above). It also seems too much like 
> > regular JSP, which I detest, IMHO.
> >
> > Jason
> >
> > > -----Original Message-----
> > > From: Heng Sin Low [mailto:[EMAIL PROTECTED]
> > > Sent: Friday, March 21, 2003 11:57 PM
> > > To: OS-Webwork
> > > Subject: [OS-webwork] Action Tag
> > >
> > >
> > > I notice the action tag and lazyvalue stuff have landed 
> in cvs and 
> > > it follows the 1.3 pattern which I think could be confusing at 
> > > times. For e.g, it is not deterministic when the action will 
> > > actually be executed and you have to be carefull when using the 
> > > param tag with it. Exception from the actual execution of 
> action are 
> > > being hidden as well.
> > >
> > > For instance
> > >
> > > <webwork:action name="abc.action">
> > >     <webwork:param name="startRow" value="result.current"/>
> > >     jsp content
> > > </webwork:action>
> > >
> > > will not work and this could be confusing for newbie. 
> Also, if the 
> > > action is not being reference in the jsp content, executing it at 
> > > the </webwork:action> stage is rather pointless.
> > >
> > > May be we should just add a nested execute tag to make 
> this simpler 
> > > and we can get rid of all the lazyvalue stuff from action 
> proxy too 
> > > ( I feel it is an awkward and unnecessary solution ).
> > >
> > > for e.g, the example above can be rewritten as
> > >
> > > <webwork:action name="abc.action">
> > >     <webwork:param name="startRow" value="result.current"/>
> > >     <webwork:execute>
> > >         jsp content
> > >     </webwork:execute>
> > > </webwork:action>
> > >
> > > OR
> > >
> > > <webwork:action name="abc.action" id="myaction">
> > >     <webwork:param name="startRow" value="result.current"/> 
> > > </webwork:action>
> > >
> > > <webwork:execute name="myaction">
> > >    jsp content
> > > </webwork:execute>
> > >
> > > Regards,
> > > Low
> > >
> > > __________________________________________________
> > > Do you Yahoo!?
> > > Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your 
> > > desktop! http://platinum.yahoo.com
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.net email is sponsored by:Crypto Challenge is now 
> open! Get 
> > > cracking and register here for some mind boggling fun and 
> the chance 
> > > of winning an Apple iPod: http://ads.sourceforge.net/cgi-> 
> > > bin/redirect.pl?thaw0031en
> > >
> > >
> > > _______________________________________________
> > > Opensymphony-webwork mailing list 
> > > [EMAIL PROTECTED]
> > > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
> > >
> >
> >
> > -------------------------------------------------------
> > This SF.net email is sponsored by:Crypto Challenge is now open! Get 
> > cracking and register here for some mind boggling fun and 
> the chance 
> > of winning an Apple iPod: 
> > http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en
> > _______________________________________________
> > Opensymphony-webwork mailing list 
> > [EMAIL PROTECTED]
> > https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by:Crypto Challenge is now open! 
> Get cracking and register here for some mind boggling fun and 
> the chance of winning an Apple iPod: 
> http://ads.sourceforge.net/cgi-> bin/redirect.pl?thaw0031en
> 
> 
> _______________________________________________
> Opensymphony-webwork mailing list 
> [EMAIL PROTECTED]
> https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
> 


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
Opensymphony-webwork mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork

Reply via email to