Creates an IIterator to iterate over the data. By default, 100 tuples are cached.
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.
virtual class IIterator* createIterator(int tuplesAhead = 100) = 0;
Parameters |
Description |
int tuplesAhead = 100 |
The amount of tuples to cache. |
The IIterator.