private PointFeature nextFilteredDataPoint() throws IOException {
if (orgIter == null) return null;
if (!orgIter.hasNext()) return null;
PointFeature pdata = orgIter.next();
while (!filter(pdata)) {
if (!orgIter.hasNext()) return null;
pdata = orgIter.next();
}
return pdata;
}
public boolean hasNext() throws IOException {
if (pfIter == null) {
pfIter = getNextIterator();
if (pfIter == null) {
finish();
return false;
}
}
if (!pfIter.hasNext()) {
pfIter.finish();
currentDataset.close();
if (CompositeDatasetFactory.debug)
System.out.printf(
"CompositeStationFeatureIterator close dataset: %s%n",
currentDataset.getLocation());
pfIter = getNextIterator();
return hasNext();
}
return true;
}