Bug 190207 Integrate Aggregation builder with charts
Charts should be able to use aggregates in their databinding definition. The UI is missing the "Add Aggregation..." button in the chart databinding dialog.
UI/org.eclipse.birt.report.designer.ui.views/src/org/eclipse/birt/report/designer/internal/ui/views/attributes/provider/DataSetColumnBindingsFormHandleProvider.java
&& ( (Object[]) inputElement ).length > 0 )
		{
			return getElements( ( (Object[]) inputElement )[0] );
		}
		if ( inputElement instanceof List )
		{
			return getElements( ( (List) inputElement ).get( 0 ) );
		}
		if ( inputElement instanceof ReportItemHandle )
		{
			ReportItemHandle reportHandle = (ReportItemHandle) inputElement;
			this.bindingObject = reportHandle;
			List children = new ArrayList( );
			for ( Iterator iter = reportHandle.getColumnBindings( ).iterator( ); iter.hasNext( ); )
			{
				children.add( iter.next( ) );
			}
			return children.toArray( );
		}