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Posted to dev@commons.apache.org by Mauro Franceschini <ma...@gmail.com> on 2005/02/16 13:42:49 UTC
[collections] Porting to JDK 1.5 and Generics
Hi to all!
Any ideas about a port to Generics in JDK1.5 about the Commons
Collections Framework?
I'd like to help on it.
Mauro
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Re: [collections] Porting to JDK 1.5 and Generics
Posted by Chris Lambrou <ma...@chrislambrou.com>.
Hi Lukas,
Whilst generic collections provide type safety at compile time, at
runtime all of the specific type information is erased and the
collections classes behave much the same way as their Java 1.4
predecessors. With respect to the actual implementations of the classes
within the Java Collections Framework, having spent a fair amount of
time looking at them, I see nothing to suggest that their
reimplementation in Java 5 would give rise to any performance
improvement. The only noticeable change to the collections classes is
their generification. Any specific performance improvements that you
may observe are likely to be due to more general performance
improvements that have been made to Sun's Java 5 JRE (note that it's
possible that some of these improvements may also have been included in
the recent latest releases of the 1.4 JDK).
Chris
Lukas Vlcek wrote:
>Hi,
>Is there any performance gain in <Generics> Collections in Java5? Can
>I expect performace improvement or specialized type collection
>libraries (like fastutil) will be always faster.
>Lukas
>
>
>
>
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Re: [collections] Porting to JDK 1.5 and Generics
Posted by Lukas Vlcek <lu...@gmail.com>.
Hi,
Is there any performance gain in <Generics> Collections in Java5? Can
I expect performace improvement or specialized type collection
libraries (like fastutil) will be always faster.
Lukas
On Wed, 16 Feb 2005 13:42:49 +0100, Mauro Franceschini
<ma...@gmail.com> wrote:
> Hi to all!
>
> Any ideas about a port to Generics in JDK1.5 about the Commons
> Collections Framework?
>
> I'd like to help on it.
>
> Mauro
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: commons-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: commons-dev-help@jakarta.apache.org
>
>
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Re: [collections] Porting to JDK 1.5 and Generics
Posted by Stephen Colebourne <sc...@btopenworld.com>.
This project is on sf because no-one at Apache was
willing to step up and manage it here. The aim would
be to pull the code back in at some point, once more
complete.
Stephen
--- Mauro Franceschini <ma...@gmail.com>
wrote:
> But this project is managed external developers or
> by Apache and only
> hosted on sourceforge?
>
>
> On Wed, 16 Feb 2005 15:12:35 +0000 (GMT), Stephen
> Colebourne
> <sc...@btopenworld.com> wrote:
> > See http://sourceforge.net/projects/collections15/
> for
> > one attempt. I believe that it should be hosted at
> > Jakarta-Commons, but I lack the time to manage
> this.
> >
> > Maybe another Apache committer has the time?
> >
> > Stephen
> >
> > --- Mauro Franceschini
> <ma...@gmail.com>
> > wrote:
> > > Hi to all!
> > >
> > > Any ideas about a port to Generics in JDK1.5
> about
> > > the Commons
> > > Collections Framework?
> > >
> > > I'd like to help on it.
> > >
> > > Mauro
> > >
> > >
> >
>
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> > > For additional commands, e-mail:
> > > commons-dev-help@jakarta.apache.org
> > >
> > >
> >
> >
>
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> >
>
>
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Re: [collections] Porting to JDK 1.5 and Generics
Posted by Mauro Franceschini <ma...@gmail.com>.
But this project is managed external developers or by Apache and only
hosted on sourceforge?
On Wed, 16 Feb 2005 15:12:35 +0000 (GMT), Stephen Colebourne
<sc...@btopenworld.com> wrote:
> See http://sourceforge.net/projects/collections15/ for
> one attempt. I believe that it should be hosted at
> Jakarta-Commons, but I lack the time to manage this.
>
> Maybe another Apache committer has the time?
>
> Stephen
>
> --- Mauro Franceschini <ma...@gmail.com>
> wrote:
> > Hi to all!
> >
> > Any ideas about a port to Generics in JDK1.5 about
> > the Commons
> > Collections Framework?
> >
> > I'd like to help on it.
> >
> > Mauro
> >
> >
> ---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> > commons-dev-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail:
> > commons-dev-help@jakarta.apache.org
> >
> >
>
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>
>
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Re: [collections] Porting to JDK 1.5 and Generics
Posted by Stephen Colebourne <sc...@btopenworld.com>.
See http://sourceforge.net/projects/collections15/ for
one attempt. I believe that it should be hosted at
Jakarta-Commons, but I lack the time to manage this.
Maybe another Apache committer has the time?
Stephen
--- Mauro Franceschini <ma...@gmail.com>
wrote:
> Hi to all!
>
> Any ideas about a port to Generics in JDK1.5 about
> the Commons
> Collections Framework?
>
> I'd like to help on it.
>
> Mauro
>
>
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> To unsubscribe, e-mail:
> commons-dev-unsubscribe@jakarta.apache.org
> For additional commands, e-mail:
> commons-dev-help@jakarta.apache.org
>
>
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