Bug 214577 Support cube filter in chart
For chart consuming cube, need to support filtering on categories or series, possibly on values if time allows. The UI is similar to the filter dialog for cross tab, but there should be no measure or dimension concepts in chart's dialog.
chart/org.eclipse.birt.chart.reportitem.ui/src/org/eclipse/birt/chart/reportitem/ui/ChartReportItemBuilderImpl.java
IUIServiceProvider
{
	private static int iInstanceCount = 0;
	private transient ExtendedItemHandle extendedHandle = null;
	private transient String taskId = null;
	private static ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.reportitem/trace" ); 
	/**
	 * The constructor.
	 */
	public ChartReportItemBuilderImpl( )
	{
		super( );
	}
	/**
	 * Open the chart with specified task
	 * 
	 * @param taskId
	 *            specified task to open
	 */
	public ChartReportItemBuilderImpl( String taskId )
	{
		super( );
		this.taskId = taskId;
	}