Re: [Haskell-cafe] CAL (OpenQuark) and enterprise

Nice:) Daniil Elovkov wrote:

fero wrote:

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And what if writing new application? Has anybody experience with enterprise application in functional language? Is it really clearer? I can see a advantage in using Scala but it doesn't have some features from Haskell or CAL or requires more code to write. Or better has anybody experience with the same and functional language for JVM? And what about ORM (e.g. Hibernate)? And what about objects, they are stateful itself. And CRUD is a very common part of enterprise applications and I think it's easier in imperative style (client is declarative of course but it assigns values to fields). I am interested in ours opinions/experience in business logic (not any infrastructure or client stuff) for apps such as accounting/bank/insurance/document management... systems in functional languages. Sometimes the rules for these kind of apps is more complex that it seem to be and such systems are maintained for many years (some even decades) so it needs to be readable. Rule engines are very popularized among java community now but I think many logic can be expressed clearer in functions. It is maybe useful for some kind of logic (e.g. calculate price with discounts) but for what I do I can write the same clearer in java that in rule engine (and much clearer in Haskell and I am only beginner. What will come after few years coding;).

You may start writing more obscure code.

Look at this: http://www.willamette.edu/~fruehr/haskell/evolution.html

This is humour, of course.

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Miles Sabin wrote:

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On Wed, Jul 9, 2008 at 6:28 PM, Neil Mitchell wrote:

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On the Haskell list I think its fair to say everyone recommends you should use Haskell. Not necessarily. If the OP has a significant body of existing Java code (s)he has to work with (which is what the question suggests) then Scala would most likely be a very good place to look.

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