ITotalExprBindings totalExpressionBinding = ExpressionUtil
ITotalExprBindings totalExpressionBinding = expressionUtil
		protected String transformExpression( String expr )		{			if ( expr == null )			{				return null;			}			IBaseQueryDefinition query = getParentQuery( );			if ( query != null )			{				List expressions = new ArrayList( );				expressions.add( expr );					ITotalExprBindings totalExpressionBinding = ExpressionUtil					.prepareTotalExpressions( expressions, getCurrentGroupName( ) );								addNewColumnBindings( query, totalExpressionBinding );								List newExpressions = totalExpressionBinding.getNewExpression( );				return (String) newExpressions.get( 0 );			}			return expr;		}			