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em.flush(); em.clear(); loosing data and not persisting managed objects

I'm having trouble with flush() and clear() in a loop inside a transaction not persisting modified objects to database. Sometimes it does other times it doesn't. But since I'm having trouble with String Primary Keys, I'm going to try the other multi

Dirty checking

> ie: @Embeddable @EntityListeners (Listener.class) So, having to go and make all @Embeddables into @Entities. and, having to manually save each one. Question:

On ensuring ID available after persist

with my very extensive entity wiring code, which relies on an "external" entity object having a non-null id ... variable e having e.getId() defined (like wiring up to another element) I am using

Activated ObjectDB still throws "Too many persistable types"

out whether a started ObjectDB server is activated, without having to resort to an actual application ... out whether a started ObjectDB server is activated, without having to resort to an actual application

PersistenceException: Failed to locate field

> not sure how to debug your question re the server having access to an old version, having to run it twice is fine for me. dmoshal David Moshal

Should I be able to persist a JFrame (or gui components in general)?

had first tried without the EE version of Netbeans (and not having any separate Java EE stuff ... was due to having chosen "Java EE 6 API Library" when for my first working test I had chosen "Java EE 7

Externalising persistence.xml properties in Glassfish?

/production environments without me having to edit manually prior deployment or rely on build scripts ... deployments with ObjectDB as the datastore either with Glassfish/JBoss and having environment

Upgrade to Java 8 won't run

) ... 50 more greymatter Lee Grey It seems that this exception is caused by having Having this type in the database

JBoss 7 startup fails

Hi, I was having a go with entity beans 3.x jboss 7, objectdb and the guestbook web application but cannot come out of the swamp. I use eclipse indigo as IDE Hi, I m having the same problem using the same jboss as 7 and eclipse and I

Reading 1.x odb files in ObjectDB 2.x without upgrading

the application which is having object db 1.x installed. Is there any way to read odb ... found that objectdb 1.x was having one row but after converting to objectdb 2.x, no row was present