Bug 207897 [Automation][Regression]A DataException is thrown out when preview reportdesign
Description: A DataException is thrown out when preview reportdesign Test Date: 20071030 Test Build: BIRT2.2.2 v20071029 Step to reproduce: 1. Use the reportdesign attached 2. Preview it Expect result: Report can be previewed without any exception. Actual result: A DataException is thrown out.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/ExecutionContext.java
/**
	 * execution mode, in this mode, the render operation should be executed.
	 */
	private boolean presentationMode = false;
	/**
	 * execution mode, in this mode, the genreation opration should be executed.
	 */
	private boolean factoryMode = true;
	
	/**
	 * The scripting context, used to evaluate the script.
	 */
	private ScriptContext scriptContext;
	/**
	 * data engine, used to evaluate the data related expressions.
	 */
	private IDataEngine dataEngine;
	/**
	 * utility used to create the report content
	 */
	private IReportExecutor executor;
	/**
	 * utility used to create the TOC
	 */
	private TOCBuilder tocBuilder;
	
	/**
	 * report runnable used to create the report content
	 */
	private ReportRunnable runnable;