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.ui/src/org/eclipse/birt/chart/reportitem/ui/ReportDataServiceProvider.java
int maxRow = getMaxRow( );
			queryDefn.setMaxRows( maxRow );
			queryDefn.setDataSetName( getDataSetFromHandle( ).getQualifiedName( ) );
			DataRequestSession session = prepareDataRequestSession( maxRow );
			for ( int i = 0; i < columnExpression.length; i++ )
			{
				queryDefn.addResultSetExpression( columnExpression[i],
						new ScriptExpression( columnExpression[i] ) );
			}
			
			
			
			
			resetParametersForDataPreview( getDataSetFromHandle( ), queryDefn );
			IQueryResults actualResultSet = session.executeQuery( queryDefn,
					null,
					itemHandle.getPropertyHandle( ExtendedItemHandle.FILTER_PROP )
							.iterator( ),
					ChartReportItemUtil.getColumnDataBindings( itemHandle ) );
			if ( actualResultSet != null )
			{
				String[] expressions = columnExpression;
				int columnCount = expressions.length;
				IResultIterator iter = actualResultSet.getResultIterator( );
				while ( iter.next( ) )
				{
					if ( isStringType )
					{
						String[] record = new String[columnCount];
						for ( int n = 0; n < columnCount; n++ )