commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bruno P. Kinoshita (JIRA)" <>
Subject [jira] [Commented] (FUNCTOR-14) Enhancements on the Generator API
Date Thu, 31 May 2012 23:23:22 GMT


Bruno P. Kinoshita commented on FUNCTOR-14:

Sure thing, I'll resync my code with the SVN and will start to work on this. Many thanks Simo!

> Enhancements on the Generator API
> ---------------------------------
>                 Key: FUNCTOR-14
>                 URL:
>             Project: Commons Functor
>          Issue Type: Improvement
>            Reporter: Bruno P. Kinoshita
>            Priority: Minor
> Apparently, the Generator API in [functor] was created based on Python generators. However,
there is room for enhancements in the current implementation.
> The Generator interface contains methods to stop its execution. However not all generators
are necessarily 'stoppable'. Maybe we could move this behavior to a separate interface.
> The parameters passed to a generator (from, to, step) are the same that, in Python, can
be used to create a Range. Ranges are used in many examples of Generators in Python. We could
include Ranges in [functor] and utilize them in Generators. It would be good if we could include/exclude
the Range boundary values, i.e. we could create a Range 0..2, and define 0 or 2, as being
either inclusive or exclusive. 
> Among the current generators, there is one for Integer's, and another one for Long's.
We could create generators for other types too (e.g.: Char, Date, Double, Float, ...).
> Another feature usually related to Generators in Python is the yield statement. There
are some API's in Java that provide a yield implementation. This is not entirely necessary,
but could be convenient to include it to [functor] too, combined with Generators. Maybe in
[functor] we could create a YieldProcedure. This way, the Generator would yield its values
to this procedure. Just food for thought. 
> This issue is quite vague, so feel free to add comments, or criticize. This way we can
achieve a common consensus on a new and awesome Generator API for [functor]. No hard feelings
> Cheers

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:!default.jspa
For more information on JIRA, see:


View raw message