google gwt JsArrayInteger (JavaScriptObject) use via JSNI

Question

I'm relatively new to gwt and I have a problem using JsArrayInteger. Here is my code:

  package com.google.gwt.sample.stockwatcher.client;    
  public class StockWatcher implements EntryPoint {
      JsArrayInteger a;
      public void onModuleLoad() {
          a = (JsArrayInteger) JsArrayInteger.createArray(); 
          a.push(1);
          a.push(2);
          a.push(4);
          a.push(5);
          test();
      }
      public static native void test() /*-{
          var p = [1,2,3,4,5,6];
          var q = [email protected]::a;
          alert(q);
          alert(p);
      }-*/;
    }

The result is 'undefined' and [1,2,3,4,5,6] instead of [1,2,3,4,5] and [1,2,3,4,5,6]. I want to use the field a and work on that array (pass it to a third party library).

The tutorial http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsJSNI.html didn't explain how to use the default JavaScriptObjetcs. Does somebody find the error?

Best regards,

Michael

Colin Alworth · Accepted Answer · 2012-03-12 16:59:20Z

1

  public static native void test() /*-{
      var p = [1,2,3,4,5,6];
      var q = [email protected]::a;
      alert(q);
      alert(p);
  }-*/;

Note that this method is static, but you are referring to this. Either pass in an instance and use that instead of this, or change the method to not be static.

answered Mar 12, 2012 at 16:59

Colin Alworth

18.5k2 gold badges30 silver badges42 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Michael Over a year ago

How stupid of me... I though about a complicated problem... Thank you very much!

Colin Alworth Over a year ago

If only the JSNI code could tell us that this didn't make sense... but that isn't how JS works. And that's why many people use GWT in the first place.

Collectives™ on Stack Overflow

google gwt JsArrayInteger (JavaScriptObject) use via JSNI

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related