Bug 172092 [regression][automation] __maxrows=1 url pattern did not work
steps to reproduce: - preview report using the following url fragment, preview?__report=report/regression_142673.rptdesign&__designer=true&__maxrows=1 expected behavior: - only one data row is displayed actual behavior/: - all data rows are displayed
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/EngineTask.java
*/
	protected String emitterID;
	
	/**
	 * does the parameter has been changed by the user.
	 */
	protected boolean parameterChanged = true;
	/**
	 * The parameter values that the caller has set explicitly
	 */
	protected HashMap inputValues = new HashMap( );
	/**
	 * The parameter values that will be used to run the report. It is a merged
	 * map between the input value and the default values.
	 */
	protected HashMap runValues = new HashMap( );
	/**
	 * @param engine
	 *            reference to report engine
	 * @param appContext
	 *            a user-defined object that capsulates the context for running
	 *            a task. The context object is passed to callback functions
	 *            (i.e., functions in image handlers, action handlers, etc. )
	 *            that are written by those who embeds engine in their
	 *            applications
	 */
	protected EngineTask( IReportEngine engine, IReportRunnable runnable )
	{
		taskID = id++;