Bug 188829 Move the item ,the trans of the model don't close.
1:New report design. 2:Add a Embedded image. 3:Add another imge , then drag the second imge to the first position. 4:Change the size of the first image. Expected: Image change the size. Now: Image size don't change.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/command/ContentElementCommand.java
*/
	private TransactionOption getTransOption( )
	{
		TransactionOption options = new TransactionOption( );
		options.setSendTime( TransactionOption.SELF_TRANSACTION_SEND_TIME );
		options.setEventfilter( new EventFilter( eventTarget.getElement( ),
				eventTarget.getPropName( ) ) );
		return options;
	}
	private static class EventFilter implements IEventFilter
	{
		private final NotificationEvent ev;
		private EventFilter( DesignElement target, String propName )
		{
			ev = new PropertyEvent( target, propName );
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.model.api.activity.IEventFilter#filter(java.util.List)
		 */
		public List filter( List events )
		{
			List retList = new ArrayList( );
			retList.add( new NotificationRecordTask( ev.getTarget( ), ev ) );
			return retList;
		}
	}
}