I don't have details in front of me, but I understand that many of
the popular Concurrent classes have been back-ported to Java 1.4. If
you like, I can get more details if you can't find it on the Internet.
The back-port classes don't use the new Java byte-codes that were
added in Java 5 so there still is some performance improvement in
Java 5. But if the alternative is to require Java 5, some users might
want to take a bit lower performance instead.
Craig
On Aug 6, 2007, at 8:19 AM, Andrus Adamchik wrote:
>
> On Aug 5, 2007, at 5:39 AM, Kevin Menard wrote:
>
>> the new concurrent API could yield significant speed improvements.
>
> Being all backwards compatible, I haven't played much with that,
> but I suspect that things like ConcurrentHashMap should help us to
> improve throughput of DataRowStore and EventManager. So I am
> softening my stand against 3.0 switch to Java 5 :-)
>
> Maybe a poll on the user list is a good idea?
>
> Andrus
>
>
>
Craig Russell
Architect, Sun Java Enterprise System http://java.sun.com/products/jdo
408 276-5638 mailto:Craig.Russel..un.com
P.S. A good JDO? O, Gasp!
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