public static FastIterator valueOf(FastCollection collection) {
FastIterator iterator = (FastIterator) FastIterator.FACTORY.object();
iterator._collection = collection;
iterator._next = collection.head().getNext();
iterator._tail = collection.tail();
return iterator;
}
public void remove() {
if (_current != null) {
// Uses the previous record (not affected by the remove)
// to set the next record.
final Record previous = _current.getPrevious();
_collection.delete(_current);
_current = null;
_next = previous.getNext();
} else {
throw new IllegalStateException();
}
}
public Object next() {
if (_next == _tail) throw new NoSuchElementException();
_current = _next;
_next = _next.getNext();
return _collection.valueOf(_current);
}