Re: Using Enums

Makes perfect sense, and your suggestion works! Thanks Attila!

On Jan 3, 2008 4:08 AM, Attila Szegedi <[email protected]> wrote:
> The problem is that FreeMarker uses JavaBeans naming convention for
> property-style accessors, and java.lang.Enum does not adhere to it.
>
> In more detail:
>
> Your Calculation class probably has a "getName()" method. JavaBeans
> standard says that referring to a property named "name" should invoke
> the "getName()" method. So far, so good.
>
> However, java.lang.Enum defines a method named "name()", not
> "getName()". Thus, c.name is now a reference to a method, and not
> evaluation of the "name" property via "getName()" method. If you were
> to use enums, you'd have to use ${c.getName()}. Actually, you might
> try using ${c} on its own -- that should do an automatic toString(),
> which for enums happens to be equal to their name.
>
> Attila.
>
>
> On 2008.01.03., at 12:18, Luke Shannon wrote:
>
> > Freemarker has been working fine so far writing out pojos. My pojo is
> > called Calculation and a list of them is passed into the template:
> >
> > List<Calculation> calculations = new ArrayList<Calculation>();
> >        calculations.add(instance1);
> >        calculations.add(instance2);
> >
> >
> > In the template I use <#list calculations as c> to be able to do
> > something like this: c.name.
> >
> > No issues.
> >
> > I have attempted to go one step further and make the Calculation an
> > enum. The reason for this is there is a set amount of possible
> > Calculation instances (what I mean by this is a set amount of possible
> > states for Calculation objects).
> >
> > Now I am doing something like this:
> >
> > List<Calculation> calculations = new ArrayList<Calculation>();
> >        calculations.add(Calculation.NUMBER_ASSIGNMENTS);
> >        calculations.add(Calculation.NUMBER_ASSIGNMENTS_EST);
> >
> > When I try and run the template I get the following:
> >
> > freemarker.core.NonStringException: Error on line 564, column 93 in
> > claimsTemplate.ftl
> > Expecting a string, date or number here, Expression c.name is instead
> > a freemarker.ext.beans.SimpleMethodModel
> >    at freemarker.core.Expression.getStringValue(Expression.java:126)
> >    at freemarker.core.Expression.getStringValue(Expression.java:93)
> >    at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
> >    at freemarker.core.Environment.visit(Environment.java:208)
> >    at freemarker.core.MixedContent.accept(MixedContent.java:92)
> >    at freemarker.core.Environment.visit(Environment.java:208)
> >    at freemarker.core.IteratorBlock
> > $Context.runLoop(IteratorBlock.java:179)
> >    at freemarker.core.Environment.visit(Environment.java:415)
> >    at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
> >    at freemarker.core.Environment.visit(Environment.java:208)
> >    at freemarker.core.MixedContent.accept(MixedContent.java:92)
> >    at freemarker.core.Environment.visit(Environment.java:208)
> >    at freemarker.core.Environment.process(Environment.java:188)
> >    at freemarker.template.Template.process(Template.java:232)
> >    at
> > com
> > .jaspersoft
> > .gates.claims.generator.ClaimsGenerator.main(ClaimsGenerator.java:167)
> >
> >
> > When I do a search on FreeMarker and Enums I find myself reading about
> > the TemplateHashModel. But I am not sure this is what I want.
> >
> > I basically want to put a list of enums and have FreeMarker access
> > their members like the Pojos. Is this possible? I am pretty new to
> > Enums, am I mis-using them in this case? Does anyone know a better way
> > to do this?
> >
> > Thanks!
>
>
>
>
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