Hi all,
I'm working at an application made with GWT and I just integrated some
charts with GWT Visualization API.
Most of the charts have wrappers to implement them in GWT, but not all.
So, I made a wrapper for GeoChart chart.. and I got an error every time I
try to instantiate this chart. Rest of the charts that use also a wrapper
made by me are working perfectly.
This is the error:
16:51:10.322 [ERROR] [reporting] Uncaught exception escaped
com.google.gwt.core.client.JavaScriptException: (TypeError)
@com.qfp.reporting.charts.wrappers.GeoChart::createJso(Lcom/google/gwt/dom/client/Element;)([JavaScript
object(3951)]): undefined is not a function
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:249)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:571)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:279)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.qfp.reporting.charts.wrappers.GeoChart.createJso(GeoChart.java)
at
com.google.gwt.visualization.client.visualizations.Visualization.<init>(Visualization.java:65)
at
com.google.gwt.visualization.client.visualizations.Visualization.<init>(Visualization.java:71)
at
com.google.gwt.visualization.client.visualizations.corechart.CoreChart.<init>(CoreChart.java:69)
at com.qfp.reporting.charts.wrappers.GeoChart.<init>(GeoChart.java:74)
at com.qfp.reporting.client.WidgetEditor$28.run(WidgetEditor.java:711)
at
com.google.gwt.ajaxloader.client.ExceptionHelper.runProtected(ExceptionHelper.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at
com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:293)
at
com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:547)
at
com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:364)
at java.lang.Thread.run(Thread.java:662)
I've debugged the application line by line and still can't figure what's
the problem.
In my chart wrapper for GeoChart I have the method createJso() implemented
as a native method.
In the superclasses of my class, respectively CoreChart and Visualization,
I also have the method, the only difference is that in Visualization
superclass the createJso method is declarated as abstract.
Also the call to createJso() is made from abstract class Visualization, and
the method is defined in the next subclasses (CoreChart and my wrapper
GeoChart).
I really can't seem to find what's the problem. For the other charts
everything works well.
This is the part of the code that generates the error.
public Visualization() {
Element div = DOM.createDiv();
-->>> jso = createJso(div); <<<-- this is the line that generates
the error for GeoChart but works perfectly for the other charts
setElement(div);
setStyleName("gwt-viz-container");
}
public Visualization(AbstractDataTable data, OptionsType options) {
this();
this.options = options;
this.dataTable = data;
}
Thank you,
Marian
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