About view

release

2.2.4

Release date: 2011-05-09 Download (5.09 MB) Binary:  objectdb-2.2.4.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

How to use JOIN FETCH?

The ObjectDB manual (http://www.objectdb.com/java/jpa/query/jpql/from) gives an example of using JOIN FETCH to avoid excessive round trips to the database: ... going to be acceptable from a performance point of view. edit ...

 
manual

Retrieving JPA Entity Objects

Explains how to use JPA to retrieve entity objects from the database.... fields are initialized. From the point of view of the developer it looks like the entire graph of objects is present in ...

 
release

2.2.5

Release date: 2011-05-20 Download (5.1 MB) Binary:  objectdb-2.2.5.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

How to Use a SF with extended Persistence Context?

Hey, I have a problem to use SF with an Extended Persistence Context Regarding to Transactions. The need for an extended persistence Context emerges for the need to create queries in advance for fast execution so I need to store the queries and I need an EntityManager that doesn't get closed between calls. When I call the SF directly no problem happens but if I use SL to hold a reference to the SF I get com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active. ... at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final] ... at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final] ... JBAS011052: Failed to instantiate component view at ...

 
release

2.2.3

Release date: 2011-04-29 Download (5.07 MB) Binary:  objectdb-2.2.3.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

Some details about db behavior

Suppose I have two entities... A B -> A B has a ManyToOne relationship with A. When my database is empty and I persist a valid B entity (that contains actual A reference) I observe some behaviour that I'm not sure I understand. ... cases, or sample database (and particularly the Explorer view situation that you described above). ObjectDB ...

 
forum_thread

New to Product & Having An Issue

Greetings ObjectDB Users! I'm new to the product, and I've setup a simple test after reading the tutorial, and I'm running into some issues with queries, specifically querying by primary key.   I have a domain object class Called Department, which has a member of type DomainId.  DomainId has two member fields:  String accountId and String objectId.  The following code shows these two classes.... The first test, createDepartment() succeeds, and I can view the Department object in the database with the ObjectDB Explorer, ...

 
issue

File lock exception on odb$

Not sure if this is an objectdb issue or not but I thought I'd raise it just in case. We had a server failure which caused an unexpected reboot. As a result, the application services which use objectdb were not shutdown properly which in turn meant we had several odb$ files left behind. I had assumed that objectdb would reprocess these when the services restarted but instead we got the exception below. Bug Version: 2.3.7 Priority: Normal Status: Fixed Replies: 7 Type:  Bug ...

 
release

2.2.2

Release date: 2011-04-22 Download (5.07 MB) Binary:  objectdb-2.2.2.zip You should start by following a  tutorial or reading the manual ...