Re: [Actionframework-users] parameters to output-variable methods

[Craig L. <cr...@be...>]

On Wed, 2002-08-07 at 15:39, Petr Toman wrote:
>  > is there any way to pass parameters to the methods that
>  > output-variable defined values call?  for eg:
>  >
>  > <output-variable name=3D"objectList" component=3D"objectHandler"
>  > value=3D"getObjectList(Context context)"/>
>=20
> Sure! You can use $variables in method calls in <in/output-variable>s:
>=20
> <output-variable name=3D"objectList" component=3D"objectHandler"
>                   value=3D"getObjectList($context)"/>
>=20
> ....supposing that $context is already in the context.

ah, ok.  that wasn't clear from the tutorial.  i guess the tutorial
showed that you could put $xxx as the value, i didn't make the leap to
assume i could use them as parms in a method call though.  i was
expecting the calls there to work like the 'method' attribute of the
'action' element.

just as an aside, does putting a reference to the context IN the context
open one up for a memory leak?  or is the vm smart enough to know if a
reference to something is from something that is ready to be destroyed
anyway?

i suppose putting a reference to the context in the context isn't a real
security concern, you couldn't use that reference in the template to do
anything that a template wouldn't be able to do otherwise, would it?=20
the context to a template is almost like the 'this' pointer in a method
i guess, you always use it whenever you use a '$' operator anyway.

> Components created by DefaultInstantiator can have constructor with
> a parameter ActionServlet (or its subclass), so you can pass the servlet
> reference to the component.

ok, i see that now to.  i was just getting to point in the thinking
process that i might need to create my own instantiator, which would
have made this obvious once i looked at the javadoc.

thanks for taking the time to answer these, i'm slowly getting my head
everything!

sincerely,

--=20

     CraigL->Thx();
     Be Developer ID: 5852