About unique

release

2.3.6

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

 
forum_thread

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 ...

 
forum_thread

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 ...

 
forum_thread

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 ...

 
manual

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 ...

 
release

2.3.5

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

 
forum_thread

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: ...

 
issue

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 = "";     ...

 
forum_thread

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).  ...

 
api-jpa

javax.persistence.spi.PersistenceUnitInfo

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