[math] object collections

[Benson Margulies <bi...@gmail.com>]

Colt include a rather oddly-implemented ObjectArrayList. One
side-effect of disconnecting the primitive type collections from their
Capitalized object cousins is the leave this class somewhat out in the
cold.

I would delete it, except for two things. (1) There are some
speed-related APIs in here that make it potentially faster than
ArrayList<T> for some purposes. (2) The hash map code uses it.

For now, I've does the necessary furniture moving to preserve it,
sharing a common AbstractList class with the primitive types.

When I finish the array list classes, and move on to the hash maps, I
may conclude that it would work just as well with a plain old
ArrayList<T>, and kill the ObjectArrayList. No other code uses the
ObjectArrayList in any sensible way. (There are some pointless uses of
it for sorting that I've replaced with direct use of the Sorting
class.)

Re: [math] object collections

[Sean Owen <sr...@gmail.com>]

I agree with using ArrayList, ideally. It's really up to your judgment
whether it's worth the effort -- your effort -- IMHO.

On Wed, Dec 23, 2009 at 12:20 PM, Benson Margulies
<bi...@gmail.com> wrote:
> Colt include a rather oddly-implemented ObjectArrayList. One
> side-effect of disconnecting the primitive type collections from their
> Capitalized object cousins is the leave this class somewhat out in the
> cold.
>
> I would delete it, except for two things. (1) There are some
> speed-related APIs in here that make it potentially faster than
> ArrayList<T> for some purposes. (2) The hash map code uses it.
>
> For now, I've does the necessary furniture moving to preserve it,
> sharing a common AbstractList class with the primitive types.
>
> When I finish the array list classes, and move on to the hash maps, I
> may conclude that it would work just as well with a plain old
> ArrayList<T>, and kill the ObjectArrayList. No other code uses the
> ObjectArrayList in any sensible way. (There are some pointless uses of
> it for sorting that I've replaced with direct use of the Sorting
> class.)
>