Bug 121352 The data set binding property cannot be retrieved in report preview layout
In report preview page, the datasource/dataset property binding lists cannot be retrieved. The dataset binding can not work correctly in layout preview because it's value cannot get from the binding list. But in the data set edit page, the binding value can be got. You can refer to the attachment.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
*/
	protected URL systemId = null;
	/**
	 * The UTF signature.
	 */
	protected String signature = null;
	/**
	 * The default units for the design.
	 */
	protected String units = null;
	/**
	 * All libraries which are included in this module.
	 */
	private List libraries = null;
	/**
	 * The attribute listener list to handle the file name changed events.
	 */
	private List attributeListeners = null;
	/**
	 * Dispose listener list to handle the design disposal events.
	 */
	private List disposeListeners = null;
	/**
	 * The theme for the module.
	 */
	private ElementRefValue theme = null;
	/**
	 * The fatal exception found in the included modules, which will stop
	 * opening the outer-most module.
	 */