About attribute

forum_thread

Should derived fields of an EmbeddedId be manually maintained by app code?

If I have an Entity which has a primary key which is derived and I am implementing it using @EmbeddedId, am I responsible for maintaining the derived fields of the @EmbeddedId? I could not find anything in the JPA 2.0 spec http://download.oracle.com/auth/otn-pub/jcp/persistence-2.0-fr-oth-JSpec/persistence-2_0-final-spec.pdf?e=1317047713&h=54831c176e81a244a4c309e13eba0b27 which tells me what to expect. #1 2011-09-26 15:26 If I have an Entity which has a primary key which is derived and I am implementing it using @EmbeddedId, am I res ...

 
release

2.7.0

Release date: 2017-03-09 Download (5.58 MB) Binary:  objectdb-2.7.0.zip Version 2.7.0 Extended maximum supported entity object size ...

 
release

2.7.1

Release date: 2017-04-06 Download (5.58 MB) Binary:  objectdb-2.7.1.zip Version 2.7.1 Fixed a critical bug that may cause database ...

 
manual

[ODB1] Chapter 2 - A Quick Tour

Demonstrates basic database programming using ObjectDB. ... and <class> elements must have a name attribute. An empty name is specified for the <package> element to ...

 
forum_thread

Broken @ManyToOne reference

Hi, I have objects of type A belonging to objects of type B, defined as follows: @MappedSuperclass public abstract class A {   @Id   @ManyToOne(fetch = FetchType.EAGER, cascade=CascadeType.ALL, optional=false)   private B b;   @Id   @Column(length = 36)   private String stringId; } @MappedSuperclass public abstract class B {   @Id   private String name; } ...   System. out . println ( "Is single ID attribute: " + em. getMetamodel ( ) . entity ( ...

 
forum_thread

object creation during pmf.getPersistenceManager()

Hi ... always add these constructors and a new configuration attribute would determine whether these constructors should be used or not. ...

 
release

2.6.9

Release date: 2016-08-10 Download (5.58 MB) Binary:  objectdb-2.6.9.zip Version 2.6.9 Added support for integration with WebSphere ...

 
forum_thread

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

    I did the following: 1. (using Netbeans 8.02 & last available java 7 sdk) I sort of follow your tutorial(s) while applying the ideas to a sample that came with the IDE called GUIFormExamples (under samples). ... "AWT-EventQueue-0" java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file ...

 
forum_thread

Performance problem

Hi, we have a strange performance problem with ObjectDB 2.5.3_01 and JBoss 7.1.1. We have two ObjectDB databases on one ObjectDB server. Production database is running 5-10 times slower than test database. Their size and number of records are almost identical. When running production database in separate test environment its speed is very good. We did a performance analysis on our 2 linux servers one running JBOSS and other running ObjectDB. - CPU utilization of JBOSS server is max 5-10% (per core) #1 2014-01-13 18:57 Hi, we have a strange performance problem with ObjectDB 2.5.3_01 and JBoss 7.1.1. We have two ObjectDB databa ...

 
release

2.6.8

Release date: 2016-05-23 Download (5.57 MB) Binary:  objectdb-2.6.8.zip Version 2.6.8 Added JPA XML validation schema files to Mave ...