Creates an iterator to iterate over the filtered data.
Also initializes the iterator: Moves the current position to before the beginning of the data; a subsequent next call will find the first non-default position.
Creates a new iterator to iterate through the filtered data. By default, 100 tuples are cached.
The identifier is cleaned up upon creation of the iterator.
IIterator createIterator(IFilter filter);
Creates a new iterator to iterate through the filtered data.
The identifier is cleaned up upon creation of the iterator.
IIterator createIterator(IFilter filter, int tuplesAhead);
