I use EJB's for persistence (CMP 2.0 with CMR). I use the Foreach component
in Tapestry to loop over a CMR collection. This seems to be working ok.
Page A
foreach ObjectType in CMR-collection
viewObjectType
- viewObjectType is a self-made jwc that will access an relation in the
ObjectType-instance. E.g: objectType.getInstances().size(). getInstances()
returns a CMR-collection.
This generates an exception - "A CMR collection may only be used within the
transction in which it was created". I'm sure this is due to some
threading-problem I don't fully understand.
Can anyone shed some light on what I'm doing wrong?
- Henning
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