On 13/06/2007, at 5:03 PM, Rudi Angela wrote:
I've been busy writing Scala versions of Didier Besset's 'Object-
oriented implementation of numerical methods' and it keeps amazing
me with its expressiveness. The Scala implementations of these
algorithms are way shorter than the Java or even the Smalltalk
versions presented in his book.
(http://www.amazon.com/Object-Oriented-Implementation-Numerical-
Methods-Introduction/dp/1558606793)
After the high order function support and pattern matching, the thing
that I am enjoying the most is the type inference. It's one thing to
not need to think about value typing all the time, but it's another
thing altogether to be able to do it and still have compile time type
safety, and no performance penalty.
I have considered using it with WO. Having XML built into the
language makes it very suitable for writing web apps, specially
servlets. But having WO's component approach available, there's no
added value.
I have used the XML parsing, it really is quite excellent. But
haven't really had much use for the inline XML builder support, and
don't see it being of much use in WO either.
Though I've seen great benefit to using Scala when having to write
complex code, like in numerical methods, my WO apps usually contain
very simple code. Ninety percent of the time I'm just creating,
modifying, storing or deleting records. For the typical database
applications there isn't much added value to using Scala IMHO.
Agreed, in WO key value coding usually steps in to take most of the
pain out of writing lots of boilerplate java code, even if you do
sacrifice compile time type safety in the process. The main benefit I
can see from using languages like Scala for "simple" code is that a)
there is less of it, and therefore fewer places for bugs to hide, and
b) it (hopefully) conveys the code's intent more clearly than would
otherwise be possible with imperative languages like java.
That said however, I doubt I will use it for much other than small
simple tasks for the time being.
Rudi Angela
On 13-jun-2007, at 0:41, Q wrote:
I have been tinkering with Scala (http://www.scala-lang.org)
lately, and the more I use it the better it gets. In fact at this
rate I might have to stop looking at it for a while, because It
makes writing a lot of things in java feel like such a chore.
I haven't tried writing a basic WO app with it yet, but I have
used it to write a simple backend reporting tool for a client, and
it was actually quite fun. The only source of frustration was the
relatively immature eclipse plugin.
Is there anyone else exploring these waters?
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Seeya...Q
Quinton Dolan - [EMAIL PROTECTED]
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