CMP2 and complex container-managed fields

pgarcia Nov 29, 2001 12:15 PM

Hi all,

In the new CMP2, all accesor methods to container-managed fields must be declared abstract.
For simple variables there is no problem but for composite variables I cannot imagine how can you do it.

For example, you have a Map field with methods:

setProperty(String key, String value)
getProperty(String key)
addProperty(String key, String value)
removeProperty(String key)

How this can be solved with abstract methods ?
Is the container so clever to fill this code ?

Thank you in advance.

Pedro

1. Re: CMP2 and complex container-managed fields

dsundstrom Dec 3, 2001 2:00 PM (in response to pgarcia)

First off this should be in the persistence forum.

You thinking in object land. How would JBossCMP map this type of property to a set of columns? It can't, but it could use a map table that has a name column and a value column.

Ok, you need another table, so you need another bean. Create MapEntryEJB with only a local interface, and name and value columns. Then setup a one-to-many relationship between YourEJB and MapEntiyEJB.

follow?

-dain
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