Hi
Worked like a treat.
| /**
| * Fetches the contract object direct from the database each time it is
selected
| */
| public Object getAsObject (FacesContext context, UIComponent component,
String value){
| log.debug("getAsObject: Called with value = " + value);
|
| // Fetch the entity manager from the one managed in seam.
| EntityManager em = (EntityManager)Component.getInstance("em",
true);
| return (Object)(Contract)em.find(Contract.class,
Long.valueOf(value).longValue());
| }
|
Thanks for the help.
Thinking about the reverse engineering tool, it would be possible to
automatically generate the different converters as long as each entity had a
@Id and a field that could be used as the name element (the tricky part).
As far as extending seam with further annotations, I will have to think about
this further (i.e. how the converter could be generalised further, to lookup
any type of entity, rather than converter per entity type). Allow possibly the
converters could be created and cached at seam scanner time for each entity
component that had @Selectable annotation?, this scanner task would also need
to dynamically register the converters with jsf/myfaces which I believe is
possible using the myfaces Application class (don't know about the RI
implementation).
The entity class annotated with @Selectable would have to have an @Id attribute
and a attribute annotated with something like @SelectionName for the displayed
name of the object in the selectItems. I don't know if it possible to pass in
the function that you want to use dynamically to a function, but if it is then
its a possibility?
Just thoughts currently.
James
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