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
*/
	public void addAttributeListener( IAttributeListener listener )
	{
		if ( attributeListeners == null )
			attributeListeners = new ArrayList( );
		if ( !attributeListeners.contains( listener ) )
			attributeListeners.add( listener );
	}
	/**
	 * Removes one attribute listener. If the listener not registered, then the
	 * request is silently ignored.
	 * 
	 * @param listener
	 *            the attribute listener to remove
	 * @return <code>true</code> if <code>listener</code> is successfully
	 *         removed. Otherwise <code>false</code>.
	 * 
	 */
	public boolean removeAttributeListener( IAttributeListener listener )
	{
		if ( attributeListeners == null )
			return false;
		return attributeListeners.remove( listener );
	}
	/**
	 * Broadcasts the file name event to the file name listeners.
	 * 
	 * @param event
	 *            the file name event
	 */