About mapping

release

2.5.7

Release date: 2014-09-29 Download (5.49 MB) Binary:  objectdb-2.5.7.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

can't get HashMap out of the database

I'm trying to persist an Entity containing a HashMap. It stores the data in the database OK, but the map is always empty when I get the entity out of the database again. I've reproduced this problem in a simple variation of the Guestbook tutorial: Guest class: ===================== #1 2011-11-04 09:35 I'm trying to persist an Entity containing a HashMap. It stores the data in the database OK, but the map is a ...

 
api-jpa

MapKeyColumn.name

(Optional) The name of the map key column.(Annotation Element of javax.persistence.MapKeyColumn)

 
api-jpa

javax.persistence.MapKeyClass

Specifies the type of the map key for associations of type java.util.Map.(Annotation of JPA)

 
api-jdo

javax.jdo.Constants

Constant values used in JDO.(Interface of JDO)

 
release

2.4.5

Release date: 2012-12-13 Download (5.41 MB) Binary:  objectdb-2.4.5.zip You should start by following a  tutorial or reading the manual ...

 
release

2.4.6

Release date: 2013-01-16 Download (5.42 MB) Binary:  objectdb-2.4.6.zip You should start by following a  tutorial or reading the manual ...

 
release

2.4.7

Release date: 2013-02-25 Download (5.42 MB) Binary:  objectdb-2.4.7.zip You should start by following a  tutorial or reading the manual ...

 
release

2.5.0

Release date: 2013-04-16 Download (5.42 MB) Binary:  objectdb-2.5.0.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

Unable to convert 1.x odb file to 2.x

Hi, my company is just about to switch from ObjectDB 1.04.2487 (SE) to ObjectDB 2. So I downloaded the objectdb-2.5.5_02, activated it with our licence, enhancing went well, but then on converting 1 of the DB files I got this error: #1 2014-05-05 15:21 Hi, my company is just about to switch from ObjectDB 1.04.2487 (SE) to ObjectDB 2. So I downloaded t ...