Hm, this LOOKS fine.did you setup configuration appropriately?
On Mon, Nov 10, 2008 at 9:56 PM, ChrisR <[EMAIL PROTECTED]> wrote:
>
> I'm trying to export a database table to a file using the latest trunk
> version of Rhino.Etl and although the file is generated correctly I am
> getting the following exception:
>
> 19:49:19.904 Rhino.Etl.Core.Pipelines.ThreadPoolPipelineExecuter:
> Failed to execute operation writefile.WriteCustomersToFile
> System.InvalidOperationException: Null enuerator detected, are you
> trying to read from the first operation in the process?
> at Rhino.Commons.Guard.Against(Boolean assertion, String message)
> at
>
> Rhino.Etl.Core.Enumerables.EventRaisingEnumerator.System.Collections.Generic.IEnumerable<Rhino.Etl.Core.Row>.GetEnumerator()
> at
> Rhino.Etl.Core.Enumerables.EventRaisingEnumerator.GetEnumerator()
> at
>
> Rhino.Etl.Core.Pipelines.ThreadPoolPipelineExecuter.<>c__DisplayClass1.<DecorateEnumerable>b__0(Object)
>
>
> Here is my etl file:
>
> import System
> import FileHelpers
> import Rhino.Etl.Core.Files
>
> [DelimitedRecord("\t")]
> class Customer:
> CustomerID as String
> CompanyName as String
> ContactName as String
> ContactTitle as String
> Address as String
> City as String
> Region as String
> PostalCode as String
> Country as String
> Phone as String
> Fax as String
>
> operation WriteCustomersToFile:
> engine as FluentFile = FluentFile.For[of Customer]()
> engine.HeaderText = "Id\tCompanyName\tContactName"
> using file = engine.To("export.txt"):
> for row as Row in rows:
> cust = row.ToObject[of Customer]()
> file.Write(cust)
>
>
> process ExportCustomers:
> input "Northwind", Command = "SELECT * FROM Customers"
> WriteCustomersToFile()
>
> >
>
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