Pie chart draw issue using scripted datasource

<p>You will have to create a Scripted data source, and then a scripted data set which defines the data that acts as the source for the pie-chart.</p>
<p>Then the tasks are to supply code/script for the open, fetch and close methods of the created Scripted data set.</p>
<p>1. <span style="font-family:'courier new', courier, monospace;">open()</span> provides the object representing your source of data, say a backend service that returns a collection of interesting objects.</p>
<p>2. <span style="font-family:'courier new', courier, monospace;">fetch()</span> method then iterates over the retrieved objects/values one-by-one</p>
<p>3. <span style="font-family:'courier new', courier, monospace;">close()</span> then contains any clean up code</p>
<p> </p>
<p>This documentation lists the steps you need to do.</p>
<p><a data-ipb='nomediaparse' href='http://developer.actuate.com/be/documentation/ihub3/help/adg/adg65/index.html#page/ADG/ProgramDataAccess.1.1.html'>http://developer.actuate.com/be/documentation/ihub3/help/adg/adg65/index.html#page/ADG/ProgramDataAccess.1.1.html</a></p&gt;
<p> </p>
<p>Though the steps are for the iHub product, they apply to open source BIRT as well. The documentation is much more clear than the eclipse help for BIRT.</p>