Ugh, what a pain in the butt... I *finally* got it working though. See,
give me enough time and I eventually stumble the right way :) I make no
claim that this is the most elegant approach, but it does have the
virtue of actually *working*...
List fieldValues = new ArrayList();
fieldValues.add("test");
Object theArray = PropertyUtils.getProperty(bean, fieldName);
List fv = (List)fieldValues;
Class arrayClass = theArray.getClass();
Class componentClass = arrayClass.getComponentType();
theArray = Array.newInstance(componentClass, fv.size());
int i = 0;
for (Iterator fvit = fv.iterator(); fvit.hasNext();) {
Array.set(theArray, i, fvit.next());
i++;
}
PropertyUtils.setProperty(bean, fieldName, theArray);
Hope that helps someone in the future, after all the banging my head
against the wall I did :)
Frank
Frank W. Zammetti wrote:
On Thu, June 1, 2006 4:54 pm, Craig McClanahan wrote:
Ok, I'm with you so far... but what if you don't know the type of the
target array until runtime? I need to dynamically determine the element
type of the target array, then construct a new array instance to pass to
toArray() here. I'm messing around right now, but haven't stumbled on
the
right answer yet...
I imagine you would have to synthesize the class for "array of Foo", and
then ask it for a newInstance() to create the calling argument ... check
methods in the java.util.Arrays class for useful ways to do that.
Of course, you won't be able to cast the actual result instance (defaults
to
Object[]) if you don't know the type at compile time.
Well, *that* doesn't sound like much fun! :( Nah, actually, in a way it
does! I'm playing with it right now. Thanks again, everyone!
Craig
Frank
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Frank W. Zammetti
Founder and Chief Software Architect
Omnytex Technologies
http://www.omnytex.com
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Yahoo: fzammetti
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