从Java内部调用Haskell函数的最佳方法 [英] Best way to call Haskell functions from within Java

问题描述

我正在寻找一种从Java程序中执行Haskell函数的有效方法。我曾考虑过使用exec（）与GHC进行交互，但似乎应该有更好的方法。 解决方案

我通常避免使用JNI类型的方法来跨运行时/语言进行链接。他们只是有太多的陷阱而且没有多少好处。我发现跨越流程边界工作更容易。尽管我从来没有用Haskell和Java进行过试验，但他们都有支持XML RPC的库，这听起来很适合你正在做的事情。所以：设置一个Haskell程序作为服务，只需在需要时调用它的功能即可。

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.

解决方案

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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