About unique



... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...


Updating existing persistence entries

I have stored some instances of MyObject via em.persist(myObjectInstance); I can fetch them and bind them to a kind of property editor in my app (it simply calls the setters to reflect gui editing actions). When I try to persist a object later on, I get an error like com.objectdb.o.UserException: Attempt to reuse an existing primary key value which makes sense to me but I'm missing a em.update() method. ... finds the correspondent row in the DB by the matching and unique ID field. Is there a similar option für ObjectDB? If I were ...


How to have a distribuited GWT application with ObjectDB and Spring?

Hello to everyone! ... database as a database server, each database has a unique url and each database can be accessed by that url. In standard JPA you ...


Updating Entities

Hello, I'm currently writing a program using JavaFX and ObjectDB and I'm encountering a problem with Entities not sending their updates to each other. I have two Entities in question at the moment: Employee and Paygrade. ... Losing synchronization when using UPDATE queries is not unique to ObjectDB but a limitation of all the JPA implementation. ... Entity each: Employee and Paygrade. Paygrade must remain unique and in its own EM, but Employee has a Paygrade Field. Thus, Employee and ...


JPA Persistable Types

Explains how JPA manages types, including entity classes, embeddable classes, primitive types, wrappers, string, date, enum, collections and maps.... {   } Entity names must be unique. When two entity classes in different packages share the same class ...



... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...


type.loader java.lang.ClassNotFoundException

ObjectDB objectdb-2.2.5_03 in client-server mode Netbeans ID6.9.1 Glassfish3.0.1 With server logging turned on I get the following error message for many (or all) encountered classes: ... problem, namely my application halts with an error about unique primary keys/ids on initial startup entity creation/wiring). Q: ...


com.objectdb.o.InternalException: java.lang.ArrayIndexOutOfBoundsException: null

Exception in thread "main" [ObjectDB 2.6.0_04] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) 64-Bit Server VM 1.7.0_51 (on Windows 7 6.1). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: java.lang.ArrayIndexOutOfBoundsException: null java.lang.ArrayIndexOutOfBoundsException at java.lang.System.arraycopy(Native Method) at com.objectdb.o.SEM.c(SEM.java:77) at com.objectdb.o.SEC.g(SEC.java:196) at com.objectdb.o.SEC.c(SEC.java:84)...     private @Index     @Unique     String url = "";     ...


Sample JDO Architecture for Follow Up Questions

I am trying to finalize on my application's JDO and ObjectDB archieture.  I have done documentation survey (reading JDO books, studying ObjectDB's documents and forum) and have designed what I think is the best architecture for my particular application usage model. ... all persisted instances will be root objects with unique application IDs (StringIdentity, case sensitive).  ...



Interface implemented by the container and used by the persistence provider when creating an javax.persistence.EntityManagerFactory.(Interface of JPA)