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
{
	private ExtendedItemHandle itemHandle;
	static final String OPTION_NONE = Messages.getString( "ReportDataServiceProvider.Option.None" ); 
	/**
	 * This flag indicates whether the error is found when fetching data. This
	 * is to help reduce invalid query.
	 */
	private boolean isErrorFound = false;
	private IProject project = null;
	public ReportDataServiceProvider( ExtendedItemHandle itemHandle )
	{
		super( );
		this.itemHandle = itemHandle;
		project = UIUtil.getCurrentProject( );
	}
	private ModuleHandle getReportDesignHandle( )
	{
		return itemHandle.getModuleHandle( );
	}
	String[] getAllDataSets( )
	{
		List list = getReportDesignHandle( ).getVisibleDataSets( );
		String[] names = new String[list.size( )];
		for ( int i = 0; i < list.size( ); i++ )
		{
			names[i] = ( (DataSetHandle) list.get( i ) ).getQualifiedName( );
		}