Bug 210507 Enhance Report engine to support multiple view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/Report.java
return (ReportElementDesign) mapReportItemIDtoInstance.get( new Long(
				id ) );
	}
	/**
	 * return the named expression defined on the report
	 * 
	 * @return
	 */
	public Map getNamedExpressions( )
	{
		if ( namedExpressions == null )
			namedExpressions = new HashMap( );
		return namedExpressions;
	}
	/**
	 * set the report's page setup
	 * 
	 * @param pageSetup
	 *            page setup
	 */
	public void setPageSetup( PageSetupDesign pageSetup )
	{
		this.pageSetup = pageSetup;
	}
	/**
	 * get the report's page setup
	 * 
	 * @return page setup of this report
	 */
	public PageSetupDesign getPageSetup( )