Deferred-value expressions in custom tags

[hjones]

Hi,

I read that the current Tomcat (5.5) only provides the JSP 2.0 spec.
I try to write a custom tag which takes a deferred value as a parameter like
this:

<my:tag param="#{SessionBean1.prop}" />

Since it is not possible to use the <deferred-value> tag in the TLD file, does anybody know how to do this? How does the myfaces implementation accomplish this? E.g. a JSP line like to following has to perform the same
deferred evaluation as I would like to have in my custom tag, too:

<ui:staticText text="#{SessionBean1.prop}" />

Greetings.

[hjones]

Ok, it works with the $-syntax:

<my:tag param="${SessionBean1.prop}" />

But this bean is not instantiated if it does not exist. Anybody any idea
how to get this behaviour since withe the #-syntax, beans are created
on the spot.

Greetings.