Bug 135778 There is an error when the data item has no binding data set
Data item can have no binding data set, if it happens, it indicates it only use the basic Java Script function such as new Date(). At this moment, the data of data item is not stored in report document by DtE, which only supports these data items which has binding data set.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/PreparedDummyQuery.java
* @see org.eclipse.birt.data.engine.api.IResultIterator#close()
		 */
		public void close( ) throws BirtException
		{
			this.openStatus = ENDED;
		}
		/*
		 * @see org.eclipse.birt.data.engine.api.IResultIterator#findGroup(java.lang.Object[])
		 */
		public boolean findGroup( Object[] groupKeyValues )
				throws BirtException
		{
			this.checkOpened( );
			return false;
		}
	}
	/**
	 *
	 */
	private static class JSTempRowObject extends ScriptableObject
	{
		private ExprManager exprManager;
		private Scriptable scope;
		
		private static final long serialVersionUID = -7841512175200620757L;
		/**
		 * @param exprManager
		 * @param scope
		 */
		private JSTempRowObject( ExprManager exprManager, Scriptable scope )