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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. Here is my Entity. import javax ... still get a internal error at some point while importing the Notes data. But since I'm having trouble

Dirty checking

classes can't register change listeners? 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

, which relies on an "external" entity object having a non-null id after it has been passed ... ); // then do something that relies on Java variable e having e.getId() defined (like wiring

Activated ObjectDB still throws "Too many persistable types"

to find out whether a started ObjectDB server is activated, without having to resort to an actual ... , without having to resort to an actual application, because that takes some time for me to test. Currently not

PersistenceException: Failed to locate field

your question re the server having access to an old version, shouldn't it automatically flush it's caches ... that was the recommended solution But 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)?

(and not having any separate Java EE stuff installed). What happened is I couldn't import javax.persistence ... this without paying attention... The exception was due to having chosen "Java EE 6 API Library" when for my first

Externalising persistence.xml properties in Glassfish?

without me having to edit manually prior deployment or rely on build scripts ... either with Glassfish/JBoss and having environment specific datastore properties being build independent? I

Upgrade to Java 8 won't run

Grey It seems that this exception is caused by having java.util.HashMap.Entry in the list of types in your database, since apparently this internal Java 7 type is not part of Java 8. Having this type

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 The "src" folder contains the pachake ... Argentino Hi, I m having the same problem using the same jboss as 7 and eclipse and I tried

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

which is having object db 1.x installed. Is there any way to read odb files from 1.x in object db 2.x ... was having one row but after converting to objectdb 2.x, no row was present the odb file. But when i

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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