Re: Re: Why Iterators ever?

Hi Roland,

> Just today i had a use-case: I want to traverse a data structure driven by a “list” of items. Passing around iterators obviates the need for creating new (smaller) collections at each step;
> since the code in question is kind of a hot path, I would rather not have that many allocations happening on it, so one Iterator seems like a decent compromise between performance and
> readability (the alternative being to pass around an IndexedSeq and an index).

So, if I understand you correctly, you're telling me that you derived
your own iterator class from the Iterator trait and enjoyed the wealth
in its interface?

Cheers,
--Hossein

--------------------------------------------------------------------------------------------------------------

Seyed H. HAERI (Hossein)

Research Assistant
Institute for Software Systems (STS)
Technical University of Hamburg (TUHH)
Hamburg, Germany

ACCU - Professionalism in programming - http://www.accu.org/
--------------------------------------------------------------------------------------------------------------