You could implement additional function in Java as given below..
import javax.script.*;
import jdk.nashorn.api.scripting.*;
public class Main {
public static void main(String[] a) throws Exception {
ScriptEngineManager m = new ScriptEngineManager();
ScriptEngine e = m.getEngineByName("nashorn");
ScriptObjectMirror obj = (ScriptObjectMirror)
e.eval("var obj = ({ foo: 33 }); obj");
// implement a function object in Java using AbstractJavaObject
obj.setMember("func", new AbstractJSObject() {
@Override
// hook for actual call of "func"
public Object call(Object thiz, Object... args) {
return args[0].toString().toUpperCase();
}
@Override
// yes, I am a function!
public boolean isFunction() { return true; }
});
// call it from script
System.out.println(e.eval("obj.func('hello')"));
// call it from java
System.out.println(obj.callMember("func", "hello"));
}
}
Thanks
-Sundar
On Monday 23 March 2015 06:36 PM, BURRIS Thomas wrote:
Hi ... I have a cache of ScriptObjectMirrors (SOM) that wrap some compiled
javascript and -- at runtime -- I need to inject an additional function into
the SOMs. Something like this
ScriptObjectMirror som = SOMPool.get();
som.setMember("someFn", <WHAT-HERE?>);
// so that I am now enabled to do this:
som.callMember("someFn", "arg1", "arg2");
Possible? I've tried a bunch of approaches, none have worked.
thanks!
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