I would suggest looking at the simpler PropertyUtils class in HiveMind
to change this code. OGNL is overkill when the most you will ever do
is read a property.
On 8/24/05, Eric Schneider <[EMAIL PROTECTED]> wrote:
> Howard,
>
> Thanks. Actually, the spot that uses this call isn't a component,
> it's a generic implementation of IPropertySelectionModel (which I
> inherited from a previous post on the tapestry list). Honestly, I
> don't really know what getParsedExpression() does, so it is difficult
> for me to tell why I need to get parsed expressions.
>
> This might be a dumb question, but is it possible to inject a service
> into a non-component? I'm not clear on how I would do that.
>
> Thanks,
> Eric
>
> public String getLabel(int index) {
> Object obj = getOption(index);
> if (obj == null) {
> return noSelectionLabel;
> }
> String realValue = null;
> Object parsedExpr = OgnlUtils.getParsedExpression(property);
> if (ExpressionEvaluatorImpl.)
> try {
> realValue = (String)Ognl.getValue(parsedExpr, obj);
> } catch (OgnlException ex) {
> throw new RuntimeException(
> "ListPropertySelectionModel: Couldn't read " +
> property, ex);
> }
> return realValue;
> }
>
>
> On Aug 24, 2005, at 1:24 PM, Howard Lewis Ship wrote:
>
> > Yes, you'll need to inject the tapestry.ognl.ExpressionCache service.
> >
> > However, given that expression caching is built into the
> > tapestry.ognl.ExpressionEvaluator, service don't see why you would
> > need to get parsed expressions.
> >
> > On 8/24/05, Eric Schneider <[EMAIL PROTECTED]> wrote:
> >
> >> Hi,
> >>
> >> In a 3.0 application I made use of some OgnlUtils API. The class
> >> appears to be gone in 4.0.
> >>
> >> Is there a suggested 4.0 replacement for the following:
> >>
> >> OgnlUtils.getParsedExpression(property);
> >>
> >> Thanks!
> >> Eric
> >>
> >> ---------------------------------------------------------------------
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> >> [EMAIL PROTECTED]
> >>
> >>
> >>
> >
> >
> > --
> > Howard M. Lewis Ship
> > Independent J2EE / Open-Source Java Consultant
> > Creator, Jakarta Tapestry
> > Creator, Jakarta HiveMind
> >
> > Professional Tapestry training, mentoring, support
> > and project work. http://howardlewisship.com
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
>
>
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>
--
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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