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ObjectDB Web Site - Terms and Conditions of Use

1. Terms By accessing and using this web site, you agree to be bound by these web site Terms and Conditions of Use, all applicable laws and regulations, and agree that you are responsible for compliance with any applicable local laws. If you ...

 
api-jpa

javax.persistence.JoinColumn

Specifies a column for joining an entity association or element collection.(Annotation of JPA)

 
api-jdo

javax.jdo.Transaction

The JDO Transaction interface provides for initiation and completion of transactions under user control.(Interface of JDO)

 
forum_thread

Getting sales quantity per country with a query, an idea anyone?

Hi, For the purpose of some charts on a dashboard for our ERP i would like to get the list of countries and the sales quantity for each of them. I am pretty sure it is somehow possible to get that directly from a more or less complex query but i failed to find it; Does any have an idea? The entity (we call it OrderData) contains fields and other entities related to an order, fields we are interrested in are  buyerCountry and orderPrice. ... have an idea? The entity (we call it OrderData) contains fields and other entities related to an order, fields we are ... for a given month back in time. The resulting Object list contains the 3 SELECT items, here String, Integer and Double. Its very ...

 
forum_thread

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

I'm trying to have the guestbook example running in the following environment: jboss as 7.1.1 final oracle jdk 1.7.0_04 maven 3.0.4 objectdb 2.4.0_04 installed as a module of jboss No IDE is used for building the Guestbook.war only maven.   My GuestDAO code is as follows: ... file ? The standalone.xml configuration file contains the following section, I dont know if it is related with the issue. ...

 
issue

Blocked by find

I have a container object which wraps an objectdb database. There is a "putIfAbsent(String id, Object obj)" method which is synchronized and attempts to load an object by id using the EntityManager "find" method. If nothing is returned from the db the passed object is persisted to the db. I have 5 threads which use this method. In a run today one of the threads seems to have got stuck somewhere in the find. The thread dump looks like: ... issue on a similar line. I have a simple database which contains one type of Entity. Access is through an application wrapper object ... I suspect that somehow a list of cached pages contains a circle since there are no other apparent reasons. With no ...

 
manual

Database Explorer

Explains how to run and use the ObjectDB object database Explorer to view and manage Java/JPA/JDO objects visually....  menu command. The [Options] dialog box contains three tabbed pages: [General], [Fonts] and [Views]. The [General] Page The [General] page contains the following settings: The [Encoding] combo box is ...

 
release

2.6.2

Release date: 2015-05-20 Download (5.5 MB) Binary:  objectdb-2.6.2.zip You should start by following a  tutorial or reading the manual ...

 
manual

JPA Entity Fields

Explains how to define and use primary keys in JPA, including composite and embedded primary keys.... of @Transient } The above entity class contains only transient (non persistent) entity fields with no real content to ...

 
manual

Database Explorer

Explains how to run and use the ObjectDB object database Explorer to view and manage Java/JPA/JDO objects visually....  menu command. The [Options] dialog box contains three tabbed pages: [General], [Fonts] and [Views]. The [General] Page The [General] page contains the following settings: The [Encoding] combo box is ...