RE: Mixed RPG/Java performance (EXAMPLE CODE)

> From: Bartell, Aaron L. (TC)
> 
> Because I am purely curious, what exactly are the points that make
Java a
> poor language for business logic?

The biggest issues with Java itself is the data conversion.
EBCDIC->ASCII, character to String, and especially numeric to
BigDecimal, all of these cost a lot in terms of ovberhead.  The
BigDecimal class is a notoriously poor performer (so bad that IBM
created its own).

EJB adds a whole new level of overhead.  Since the entire bean needs to
be populated, that means you have to convert every field, even if you
don't need it.  At least with a JDBC approach you can convert only those
fields you are using.  With EJB, you have to convert the entire customer
master in order to access a single flag.

Most Java programmers have no clue about this, and since they tend to
test on dedicated fast Wintel machines with lots of RAM, the problems
don't actually show up until they make it to production.

Joe