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 = [e-mail]::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

Answer 1

  public static native void test() /*-{
      var p = [1,2,3,4,5,6];
      var q = [e-mail]::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.