This works fine, but what is a pity is that in theory there is no
absolute guarantee that the iterator will be closed.
It is possible to do a break inside a collection loop in your template,
and not finishing with the last item. I don't see why you would do that
with features, and it is not done in any of the existing template I
think, but...
can we maybe include in the documentation that it is not advised to a
break when looping over the features in a HTML template?
On 25/01/11 15:34, Niels wrote:
Well one evil thing to do would be to scan through once and collect
the feature ids (perhaps you could do that efficiently?); and then
make a collection that produces an iterator that fetches the matching
feature for each feature id in turn?
Not the best idea; but something.
The problem with that would be performance again.
But I'm looking at something now that might work. Textmarker actually
has its own Iterator model, and what I am doing is implementing that
one, which wraps a FeatureIterator and automatically closes after the
last read. Something like this:
|public TemplateModel next() throws TemplateModelException {
if (!hasNext) {
return null;
}
Object o = iterator.next();
hasNext = iterator.hasNext();
if (!hasNext) {
iterator.close();
}
return new BeanModel(o, wrapper);
}|
--
*Niels Charlier*
Software Engineer
CSIRO Earth Science and Resource Engineering
Phone: +61 8 6436 8914
Australian Resources Research Centre
26 Dick Perry Avenue, Kensington WA 6151
--
*Niels Charlier*
Software Engineer
CSIRO Earth Science and Resource Engineering
Phone: +61 8 6436 8914
Australian Resources Research Centre
26 Dick Perry Avenue, Kensington WA 6151
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