Yup... "that" does the trick.
----- Original Message -----
From: "Hendrik van der Linde" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, October 02, 2003 4:28 PM
Subject: Re: [OS-webwork] Value Stack Magic
> Hello,
>
> What Adam probably means is that he wants the class instance, instead
> of some field value. I have been puzzling at this too. Suppose you are
> iterating over a List and you want to pass the _whole_ top stack object
> to an action (maybe inside an URL), how do you do that? What I have
> found thus far is that Ognl 'translates' everything to a string (or
> String[]???). It would be nice to know if there is a way to cast, or
> specify the class of the object you want to pass to the action.
> Something like:
>
> <a href="<ww:url value="editoption.action"><ww:param name="entry"
> value="(EntryClass) that" /></ww:url>">edit3</a>
>
> Where 'that' is the object at the top of the stack (aka [0] aka that
> ;-) ). Is something like this possible? How does Ognl handle type
> casting? If it doesn't how do others handle data objects (Beans)?
>
> greets, Hendrik
>
> On donderdag, okt 2, 2003, at 00:53 Europe/Amsterdam, Matt Ho wrote:
>
> > If you're trying to toString() [EMAIL PROTECTED], then call
> >
> > <ww:property value="[1].toString()"/>
> >
> > A value stack is essentially a List. Calling [1] on the stack,
> > returns a substack beginning with the element at index 1. It's only
> > when you call methods on the stack that your actual objects will be
> > called.
> >
> > Said another way, let's say I have a value stack that consists of a
> > model and an action as follows:
> >
> > [ model, action ]
> >
> > here's how the following ognl would resolve:
> >
> > [0] - a CompoundRoot object that contains our stack, [model, action]
> >
> > [1] - another CompoundRoot that contains only [action]
> >
> > [0].toString() - calls toString() on the first object in the value
> > stack (excluding the CompoundRoot) that supports the toString() method
> >
> > [1].foo - call getFoo() on the first object in the value stack
> > starting from [action] and excluding the CompoundRoot that supports a
> > getFoo() method
> >
> > I hope this doesn't sound too confusing :\
> >
> > If you're using Velocity, this can most easily be written as:
> >
> > $stack.findValue("[0]").peek()
> >
> > Unfortunately, <ww:property value="[0].peek()"/> won't work as this
> > would translate into "starting at the top of the value stack (and
> > excluding the CompoundRoot), find the first object that has a method
> > called peek()"
> >
> > Cheers!
> >
> > M
> >
> > Adam Fleming wrote:
> >
> >> I'm trying to get something on the Value Stack from withing a
> >> ww:iterator tag,
> >> i use this:
> >> ww:property value="[1]"
> >> and get something like:
> >> [ [EMAIL PROTECTED], [EMAIL PROTECTED] ]
> >> What is the OGNL to get theClassIwant? I'm not looking for some
> >> property of the class, but the class itself.
> >> thanks!
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> >
> >
> >
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>
>
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