About managed



Release date: 2011-04-29 Download (5.07 MB) Binary:  objectdb-2.2.3.zip You should start by following a  tutorial or reading the manual ...


Step 3: Define a Spring DAO Component

Explains how to define a JPA DAO component (bean) in an Eclipse Spring MVC JPA web application project. Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right clicking the guest packa ...



ObjectDB Software develops, markets and supports the ObjectDB Object Oriented Database Management System (ODBMS). ObjectDB Software is the market leader in providing very high performance persistence solution for Java, based on the J ...


Future JDO versions?

We are about to release our first product using ObjectDB (as a small embedded store), and soon hope to release a much larger product using ObjectDB (will need an OEM license).  What really interests us is JDO.  We have been using JDO for over a decade and have found it consistently a far better API than JPA, as all kinds of features that are optional or require special extensions in JPA products, (such as large query optimisation, storage of collections of non-entities and automated management of identity) are built-in to JDO. #1 2014-06-15 21:01 We are about to release our first product using ObjectDB (as a small embedded store), and soon hope to release a ...


Query and commit simultaneously

#1 2010-07-14 09:02 Is it possible to query and commit on the same persistence manager (i.e. same odb file) at the same time? ...



Defines a single-valued association to another entity class that has many-to-one multiplicity.(Annotation of JPA)


Jboss 6 persistence.xml startup error

Hi,   I'm trying to migrate a small EJB 3.1 project from Postgres to ObjectDb to test out feasibility, but I keep getting stuck on setting up the persistence.xml on JBoss 6 AS.   Here is my setup: ------- Start persistence.xml ------- ... the jta-data-source element in the persistence.xml that I managed to find. Also, when setting up a jboss datasource it requires a SQL ...



The name of the persistence manager factory element's "connection-driver-name" attribute.(Static Field of javax.jdo.Constants)



Resource-local entity managers will be created.(Enum Constant of javax.persistence.spi.PersistenceUnitTransactionType)


Step 2: Define a JPA Entity Class

Explains how to define a JPA entity class in an Eclipse Web Application. To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the project node (in the [Package Explorer] window) and selecting New > Class ...