> -----Original Message-----
> From: Daryl Stultz [mailto:[EMAIL PROTECTED]
> Sent: Monday, March 08, 2004 1:18 PM
> To: Jakarta Commons Users List
> Subject: Re: [jelly] parent and child tags
>
>
> "Jakarta Commons Users List" <[EMAIL PROTECTED]> writes:
> >The simplest way for a child tag object to obtain its parent
> tag object is
> > DynamicBeanTag parentTag = (DynamicBeanTag) getParent();
> > Object parentBean = parentTag.getBean();
> > // At this point a cast is necessary to do anything useful will
> >parentBean.
>
> This certainly works and I "discovered" this solution myself.
I like the way you worded that. I "discovered" it too. ;-)
This really needs to go into the documentation if it is in fact the best way
to do this.
> Can't say if
> it's the simplest or most elegant, though.
> >
> >Parent tag objects cannot, in their doTag method, locate
> their child tag
> >objects and invoke methods on them to "pull" data up. I'm
> really hoping,
> >I'm wrong about this.
>
> If you have the children can push themselves to the parent during
> invokeBody(...), then the parent can process them after the call to
> invokeBody(...), no?
>
> // parent code:
> public void doTag(XMLOutput output) throws Exception {
> invokeBody(output); // children push themselves up...
> processChildren(); // iterate over children
> doing whatever
> }
Yes, that would certainly work. I'm just thinking that if I have an element
with 20 different child elements, I don't want to create a class for each of
the child elements and have to tell each one to pass its data up to the
parent. I guess what I really want is a way to treat child elements like
attributes are treated ... set methods are automatically called. For
example, I want
<foo>
<bar>7</bar>
</foo>
to result in creation of a foo object and the call foo.setBar(7).
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