I'm using Mozilla Rhino 1.7r2 (not the JDK version), and I want to call a JS function from Java.
My JS function is like this:
function abc(x,y)
{
return x+y
}
How do I do this?
Edit: (The JS function is in a separate file)
String script = function abc(x,y) {return x+y;};
Context context = Context.enter();
try {
ScriptableObject scope = context.initStandardObjects();
Scriptable that = context.newObject(scope);
Function fct = context.compileFunction(scope, script, script, 1, null);
Object result = fct.call(
context, scope, that, new Object[] {2, 3});
System.out.println(Context.jsToJava(result, int.class));
} finally {
Context.exit();
}
UPDATE: when the function is loaded in the scope, along with other functions and variables
String script = function abc(x,y) {return x+y;}
+ function def(u,v) {return u-v;};
Context context = Context.enter();
try {
ScriptableObject scope = context.initStandardObjects();
context.evaluateString(scope, script, script, 1, null);
Function fct = (Function)scope.get(abc, scope);
Object result = fct.call(
context, scope, scope, new Object[] {2, 3});
System.out.println(Context.jsToJava(result, int.class));
} finally {
Context.exit();
}
