Bug 210507 Enhance Report engine to support multiple view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/Report.java
* the name of Report root style
	 */
	public String getRootStyleName( )
	{
		return rootStyleName;
	}
	public void setRootStyleName( String rootStyleName )
	{
		this.rootStyleName = rootStyleName;
	}
	public List getErrors( )
	{
		return this.reportDesign.getErrorList( );
	}
	public ReportItemDesign findDesign( ReportElementHandle handle )
	{
		ReportElementDesign elementDesign = getReportItemByID( handle.getID( ) );
		if ( elementDesign != null )
		{
			return (ReportItemDesign) elementDesign;
		}
		else
		{
			return new EngineIRVisitor( reportDesign ).translate( handle, this );
		}
	}
	/**
     * the BIRT vesion used to generate the IR.
     */
	protected String version;