Fast Object Database for Java - with JPA/JDO support

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Static Field javax.jdo.Constants String OPTION_VERSION_DATETIME "javax.jdo.option.version.DateTime" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()


Annotation Element javax.jdo.annotations.Version Extension[] extensions Vendor extensions. Returns: the vendor extensions Default value: {} Since: JDO 2.1


Static Field javax.jdo.Constants String NONCONFIGURABLE_PROPERTY_VERSION_NUMBER Nonconfigurable property constanct "VersionNumber" Since: JDO 2.1 See Also: PersistenceManagerFactory.getProperties()


Enum Constant javax.jdo.annotations.VersionStrategy VERSION_NUMBER Since: JDO 2.1

Chapter 2 - JPA Entity Classes

Explains how to define and use JPA entity classes and other JPA persistable types.

JPA Annotations for Fields

Reference (JavaDoc) of JPA 2 field annotations, including @Basic, @Embedded, @EmbeddedId, @Version, @Transient, @Enumerated, @MapKeyEnumerated, @Temporal and @MapKeyTemporal.

Version 2.5.6 enhancement problem solved by updating to version 2.5.7_03

and enhanced again if the classes were enhanced with an earlier version. But maybe build 2.5.7_03

version 2.4.5+ with GlassFish 3.1.2, errors when runs application. Version 2.4.4 worked but not 2.4.5 or later

All latest versions later 2.4.5+ even 2.4.5_05 doesn't work, it deployed but errors when running. But 2.4.4 worked javax.ejb.EJBException at com.sun.ejb.containers.BaseContainer.processSystemException( at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer

Step 1: Create a Maven Web Project

. Guestbook), Artifact Id (e.g. Guestbook), Version (e.g. 1.0) and Package (guest), and click Finish ... war <version>1.0version> Guestbook http://maven ... >    <version>2.8.1version>      org.eclipse.persistence

Step 1: Create a Maven Web Project

). Enter Maven Version (e.g. 1.0) and Package (guest). Click the Finish button to create the project ... war <version>1.0version> Guestbook http ... >    <version>2.8.1version>        org.eclipse.persistence

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

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