Bug 209154 Enhance Report Model to support view property
The goal of this enhancement is to support a chart view property on crosstab or table report items. The view should follow the several rules: - The view automatically shares its binding with the host item, they can't be modified. - The view can be retrieved through the API only by querying it from the host item, through a getView() method. It is not accessible directly by id - A property should be available to control whether the host or view should be displayed (default is host item). If possible, this should be controllable using report parameters. - The model should return the visibile view to the report engine to ensure that there is no impact on engine code to support this new view. - The host/view combination is a single report item with a unique id Since the chart is an extended item, the model can provide additional properties to indicate which item can be view, and which item can be a host. For 2.3, only table and crosstab can be hosts, and only chart can be a view.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/internal/CrosstabReportItemTask.java
public DimensionViewHandle insertDimension(
			DimensionHandle dimensionHandle, int axisType, int index )
			throws SemanticException
	{
		
		
		if ( dimensionHandle != null
				&& crosstab.getDimension( dimensionHandle.getQualifiedName( ) ) != null )
		{
			crosstab.getLogger( ).log( Level.SEVERE,
					MessageConstants.CROSSTAB_EXCEPTION_DUPLICATE_DIMENSION,
					dimensionHandle.getQualifiedName( ) );
			throw new CrosstabException( crosstab.getModelHandle( )
					.getElement( ), new String[]{
					dimensionHandle.getQualifiedName( ),
					crosstab.getModelHandle( ).getElement( ).getIdentifier( )
			}, MessageConstants.CROSSTAB_EXCEPTION_DUPLICATE_DIMENSION );
		}
		DimensionViewHandle dimensionView = null;
		CommandStack stack = crosstab.getCommandStack( );
		stack.startTrans( Messages.getString( "CrosstabReportItemTask.msg.insert.dimension" ) ); 
		try
		{
			CrosstabViewHandle crosstabView = crosstab.getCrosstabView( axisType );
			if ( crosstabView == null )
			{
				
				
				
				crosstabView = crosstab.addCrosstabView( axisType );