Re: AS/400 and Java

[Dieter.Bender@xxxxxxxxxxx]

David,
things have changed with JIT and V4R5, but some "experts" didn't
recognize this, maybe they are not reading recent documentation.
Just have a look to the mainstream of java development, which takes
place on other boxes and yoe see were the future will be. if the as400
wants to survive as java plattform, then it will go this way too.

Dieter

David Gibbs schrieb:
> <Dieter.Bender=zqRNUXuvxA0b1SvskN2V4Q@public.gmane.org>
> wrote in message
> 1036406299.3dc64e1ba381f@webmail.t-online.de">news:1036406299.3dc64e1ba381f@webmail.t-online.de...
> > 1. read the recent manuals (Performance Capabilities
> Reference
> > recommends the JIT environment since V4R5!)
> > 2. don't use CRTJVAPGM on boxes > V4R5
> > 3. don't use the native driver, its buggy, use the
> latest Toolbox
> > driver
> > 4. don't use record level access (more IO Operations
> compared to SQL)
> > 5. run your application server on inexpensive boxes
> (Wintel, or Linux
> > on Intel), if possible (scalability)
> > 6. Don't mix Java with RPG and/or COBOL, the context
> change is very
> > expensive
> > 7. use all features of the as400 as database server,
> you've paid for
> > it
> > 8. for maximal speed with minimal hardware requirements
> use assembler
> > and shift your bytes bit by bit
>
> Dieter:
>
> Could you provide some backup information as to why you
> have come to these
> recommendations?  A significant number of them are quite
> contrary to what
> most iSeries professionals have thought for quite some
> time.
>
> david
>
>
>
>
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