Best way to call Haskell functions from within Java

java haskell ffi
Viral Shah picture Viral Shah · Jan 26, 2010 · Viewed 7.8k times · Source

I'm looking an efficient way of executing Haskell functions from within a Java program. I've considered the use of exec() to interact with GHC, but it seems like there should be a better method.

Answer

user24359 picture user24359 · Jan 27, 2010

I usually avoid JNI-type approaches to linking across runtimes/languages. They just have too many gotchas and little upside. I find it easier to work across process boundaries. While I've never tried it with Haskell and Java, they both have libraries that support XML RPC, and it sounds like a natural fit for what you're doing. So: set up a Haskell program as a "service" and just call its functions when you need them.

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