Hello all,
I am using the google-visualization-java in my Java AppEngine/GWT
project (Eclipse).
>From the client side I am doing a HTTP get to the server side to
retrieve a com.google.visualization.datasource.DataTable object.
On that server side the DataTable object is being built up from the
app engine datastore OR memcache. In order to be able to store a
DataTable into memcache, it has to be serializable. Therefore, I
convert it to a JSON string:
String aJsonString = JsonRenderer.renderDataTable(myDataTable, true,
true).toString();
(JsonRenderer is part of the google-visualization-java package)
Yet, I cannot figure out how to turn a JSON string back into a
DataTable object.
I have tried the following:
public static native DataTable toDataTable(String theJsonString) /*-{
return new DataTable(eval("("+theJsonString+")"));
}-*/;
DataTable myDataTable = toDataTable(aJsonString);
but then I am getting a java.lang.UnsatisfiedLinkError.
So what am I doing wrong? Or is there another way?
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