About Object Database

manual

General Settings and Logging

Describes general configuration and logging of the ObjectDB Java object database for JPA and JDO. the ObjectDB General configuration section.... ObjectDB manages a list of the recently accessed database urls for use by the Explorer . The size ...

 
manual

Updating JPA Entity Objects

Explains how to use JPA to delete (remove) entity objects from the database.... Modifying existing entity objects that are stored in the database is based on transparent persistence, which means that changes are ... Transparent Update Once an entity object is retrieved from the database (no matter which way) it can simply be ...

 
tutorial

NetBeans/JPA Spring MVC Web Tutorial

Step by step tutorial that demonstrates how to build a Spring MVC Java web application (with Servlet, JSP and a DAO Bean) in NetBeans using JPA.... the guestbook is represented by a Guest JPA entity object and all the Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need the ...

 
manual

Chapter 6 - Configuration

Explains how to configure and tune ObjectDB, the fast Java object database for JPA/JDO.... <general > ... </general > <database > ... </database > <entities > ... </entities > ...

 
forum_thread

Is ObjectDB the only object database that supports JPA?

Other Object database does'nt support JPA?   ... 13:01 Other Object database doesn't support JPA?   ...

 
tutorial

Eclipse/JPA Spring MVC Web Tutorial

Step by step tutorial that demonstrates how to build a Spring MVC Java web application (with Servlet, JSP and a DAO Bean) in Eclipse using JPA.... guestbook is represented by a  Guest JPA entity object and all the  Guest entity objects are stored in an ObjectDB database. Required Software For this tutorial you will need the ...

 
forum_thread

NPE after an @embedded obj is updated for a detached entity

I have an entity that looks like this: class User { @embedded private Profile profile; ...}   After running something like this: User user = entityManager.createQuery("select......entityManager.detach(user);user.getProfile().setDescription("Something...   I get the following error:... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...

 
forum_thread

How to define database structure and insert some initial objects from scratch

Hi from Spain! We're evaluating ObjectDB and we have some questions: - How can we create the initial database structure of our application? We know objectdb is all about objects and probably not need initial structure like tables, but how can we populate some "tables" with initial data from a script? In SQL world we have scripts like "insert into..." - Can we use main objectdb.jar library as jdbc driver for ETL software like Kettle? How about migrating data from another database system? ... some questions: - How can we create the initial database structure of our application? We know objectdb is all about objects ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) ...

 
manual

Deleting JPA Entity Objects

Explains how to use JPA to delete (remove) entity objects from the database. Existing entity objects can be deleted from the database either explicitly by invoking the remove remove(entity) ... Explicit Remove In order to delete an object from the database it has to first be retrieved (no matter which way) and ...

 
forum_thread

Embedded Object inside another embedded object - is that possible?

I have an entity with an embedded object - it works fine. Now I am trying to add an embedded object inside the first level embedded object - but it does not seem to store it and does not throw either... I was wondering if it was a limitation or not? has anyone tried this before? Thanks ... I have an entity with an embedded object - it works fine. Now I am trying to add an embedded object ... ObjectDB Support ObjectDB - Fast Object Database for Java (JPA/JDO) edit ...