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/src/org/eclipse/birt/chart/reportitem/ChartReportItemUtil.java
return DesignChoiceConstants.AGGREGATION_FUNCTION_MIN;
		}
		else if ( "Max".equals( agg ) ) { 
			return DesignChoiceConstants.AGGREGATION_FUNCTION_MAX;
		}
		return null;
	}
	/**
	 * Checks if result set is empty
	 * 
	 * @param set
	 *            result set
	 * @throws BirtException
	 * @since 2.3
	 */
	public static boolean isEmpty( IBaseResultSet set ) throws BirtException
	{
		if ( set instanceof IQueryResultSet )
		{
			return ( (IQueryResultSet) set ).isEmpty( );
		}
		
		return false;
	}
	/**
	 * Check if Y grouping is defined.
	 * 
	 * @param orthSeriesDefinition
	 * @since BIRT 2.3
	 */