what's the right way to manage the java object?

[jan4984]

I have a js class implement in j2v8(kotlin).

    private val constructor = JavaCallback { receiver, parameters ->
        val name = parameters.getString(0)
        val shadow = MyJavaClass(name)
        //=========================================
        //TODO:attach the shadow java object to receiver
    }
    private val test= JavaVoidCallback { receiver, _ ->
        //=========================================
        //TODO::get java object back from receiver
        shadow.doSomething()
    }
   val c = V8Function(v8, constructor)
        val cp = c.getObject("prototype")
        cp.registerJavaMethod(test, "__test__")
        cp.release()
   v8.add("MyJavaClass", c)
   v8.executeVoideScript("new MyJavaClass().__test__()")

I can not find a way to make a shadow java object to the js object, including let Java GC not release my shadow when js object lives.

any suggestion how to attach NON-STATIC java method to js object?

[caer]

PR #201 most likely addresses the problem you are trying to solve. I am in the process of making it into a stand-alone GitHub project so that users can use it on top of J2V8 without having to incorporate it into the main J2V8 repository; let me know if you have any questions about how it works!

[jan4984]

ok, I subscribed #201 , close this.

[jan4984]

Just let any looking solution know, I currently use this code and works if you use them carefully

//static MyJavaClass curInstance=null;
receiver.registerVCB("__java_back__"){_,_->
        curInstance=shadow
}
//whenever you need java instance
receiver.executeVoidFunction("__java_back__")
//and now the receiver's java shadow object in curInstance