How to implement scripting engine (Jython) into Java?

Question

How does one go about implementing a scripting engine (I'm thinking Jython) into Java?

I've never done this before, so one major question that I have is; how does the scripting engine know what function calls or fields are available to it?

Is there a simple tutorial to follow on implementing jython into a game? A book possibly?

Answer 1

如果你的路径中有jython.jar，你可以启动一个PythonInterpreter ，它可以执行和编译字符串和文件，你可以从中获取python对象（字符串，整数，对象，函数）。

Answer 2

I created a Java interface and implemented that java interface using python. That way when you get the python class back as a java instance you can type cast it to the interface and know what methods are available. __call__ and __tojava__ are the jython methods to get an instance back from a python implementation.

The Jython Book has a pretty good example and tutorial on how to do this.

http://www.jython.org/jythonbook/en/1.0/JythonAndJavaIntegration.html#using-jython-within-java-applications