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
/**
	 * @return the report document (archive) name
	 */
	public abstract String getName( );
	/**
	 * @return a report design stream. This is useful for rerunning a report
	 *         based on report document
	 */
	public abstract InputStream getDesignStream( );
	/**
	 * The report runnable is used to create the report document while writing.
	 * If the report document is open with, the report runnable is used to
	 * render or extract data from the report document.
	 * 
	 * @return the runnable report design. It is available because a report
	 *         document must be run with a report design
	 */
	public abstract IReportRunnable getReportRunnable( );
	/**
	 * returns values for all the parameters that are used for generating the
	 * current report document. Useful for running the report again based on a
	 * report document
	 * 
	 * @return parameter name/value pairs for generating the current report
	 *         document.
	 */
	public abstract Map getParameterValues( );
	/**
	 * @return the page count in the report. Used for supporting page-based
	 *         viewing