In the documentation I've read that I have to use a singleton instance here
you have the source code, perhaps i have here the error?
public class PersistenceManagerHelper {
/* the singleton instance */
private static PersistenceManager instance = null;
/**
* Hide the constructor.
*/
private PersistenceManagerHelper() {
}
/**
* Gets the singleton instance of the PersistenceManager
*
* @return the singleton instance of the PersistenceManager
*/
public static PersistenceManager getPersistenceManager() {
if (instance == null) {
instance =
JDOHelper.getPersistenceManagerFactory("transactions-optional")
.getPersistenceManager();
}
return instance;
}
}
Thanks.
2010/7/12 boustanihani <boustanih...@googlemail.com>
> Could you paste the source of "PersistenceManagerHelper" ?
> Are you sure you are getting a new PersistenceManager ?
>
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