Bug 167267 getParameterDisplayText does not work on MasterPage in PDF
getParameterDisplayText does not seem to work when used on MasterPage. This problem seems to be limited to ReportViewer and PDF format. Table from my testing Deployed to Tomcat View Report in Web Viewer View Report as PDF Format HTML OK OK N/A PDF FAIL FAIL OK Incidentally getParameterDisplayText works fine in all of the above cases if used in footer of table in the report body.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/IReportDocument.java
* Gets the TOCNodes with the given name.
	 * 
	 * @param tocName
	 *            the name of the toc.
	 * @return List of all tocs with the specified name.
	 */
	public abstract List findTOCByName( String tocName );
	
	/**
	 * @return a map for all the global variables defined in JavaScript or Java
	 */
	public abstract Map getGlobalVariables( String option);
	
	/**
	 * @return whether the document has all been written.
	 */
	public boolean isComplete( );
	
	/**
	 * check the current readed checkpoint and the current writed check point.
	 * if equal, do nothing.
	 * otherwise, reload the core stream, the checkpoint and page count.
	 */
	public void refresh( );
	/**
	 * Gets the TOC tree.
	 */
	ITOCTree getTOCTree( String format, ULocale locale );
}