Implementing JavaScript index operator in a Java object
Tim Fox
timvolpe at gmail.com
Sat Mar 1 01:27:44 PST 2014
Hello Nashorn folks,
I have a JavaScript object, and I'd like to 'override' what the index
operator [] does on it.
I.e. when I do
var x = myobj[3];
I actually want it to call some other function on the object, e.g.
myobj.get(3);
I'm pretty sure this isn't possible in pure JS, so I was thinking of
wrapping a Java Object as a JavaScript object, e.g. if I have
public class MyJavaClass {
public Object get(int index) {
...
return something;
}
}
I would like to have a JS wrapper for it, such that when I call:
var x = myJavaWrapper[3];
It actually calls:
myJavaObject.get(3);
Is this possible in Nashorn?
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