Bug 214572 Implement IAggregationCellViewProvider for crosstab/chart integration
This interface implements the model logic for the designer UI, when the users design a crosstab with charts. Note that it is independent from the multi-view feature. /** * Return the name of this view */ String getViewName( ); // this should simply return "chart" /** * Returns if the given aggregation cell matches this view */ boolean matchView( AggregationCellHandle cell ); Returns true if chart is supported in this type of aggregation cell /** * Switches given aggregation cell to this view */ void switchView( AggregationCellHandle cell ); create a chart inside the aggregation cell (and remove the data elements). This method is called when the UI tries to switch the cell contents from data element to chart. /** * Restores given aggregation cell to previous view */ void restoreView( AggregationCellHandle cell );
chart/org.eclipse.birt.chart.reportitem/src/org/eclipse/birt/chart/reportitem/ChartReportItemUtil.java
return DesignChoiceConstants.AGGREGATION_FUNCTION_RUNNINGCOUNT;
		}
		
		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
	 */
	public static boolean isYGroupingDefined(
			SeriesDefinition orthSeriesDefinition )