Fast Object Database for Java - with JPA/JDO support

ObjectDB ObjectDB

About quota

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65	Server User List and specifies their specific settings (username, password, permissions, quota). The default ... \|modify\|create\|delete"> <quota directories="5" files="20" disk-space="5mb" /> <quota directories="5" files="20" disk-space="5mb" />
3	EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable "> <quota directories="5" files="20" disk-space="5mb ... "> <quota directories="5" files="20" disk-space="5mb" />
3	500Mb ObjectDb database opening issue 500Mb ObjectDb database opening issue
3	The server cannot start in CentOS path="/$user/" permissions="access,modify,create,delete"> <quota directories="5" files="20" disk ... ,create,delete"> <quota directories="5" files="20" disk-space="5mb
2	Connection is closed Caused by: java.io.EOFException ="access,modify,create,delete"> <quota directories="5" files="20" disk-space="5mb" />
2	each 1-2 days objects on some objectdb level lock/block each other ="$$$###"> <quota directories
2	locks on pure query activities /" permissions="access,modify,create,delete"> <quota directories="5" files="20" disk-space="5mb
2	OutofMemory error with Object DB 2.0 " password="$$$###"> <quota
2	Performance tuning, best practices ="$$$###"> <quota directories="5" files
2	Query results are not up to date for entities, not primitives ="$$$###"> <quota directories="5

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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About ObjectDB	Getting Started	Support
DBMS Features	Quick Tour with JPA	ObjectDB FAQ
Editions and Prices	JPA Console Tutorial	ObjectDB Manual
Licence	Web App Tutorial	Forum
Attributions	Java EE JPA Tutorial	Issue Tracking
Privacy	Spring MVC JPA Tutorial	Website Search
Terms of Use	Download ObjectDB	Contact Us

Copyright © 2003, 2010, 2020 ObjectDB Software, all rights reserved. The JPA API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the open source JPA 2 RI (EclipseLink) and is available under the terms of the Eclipse Public License, v. 1.0 and Eclipse Distribution License, v. 1.0. The JDO API Reference Documentation (JavaDoc) on this website is derived with some adjustments from the JDO 2.2 API and is available under the terms of the Apache License, v. 2.0. Images on this website are available under these licecnes. Documentation on this website explains how to use JPA in the context of the ObjectDB Object Database but mostly relevant also for ORM JPA implementations, such as Hibernate (and HQL), EclipseLink, TopLink, OpenJPA and DataNucleus. ObjectDB is not an ORM JPA implementation but an Object Database (ODBMS) for Java with built in JPA 2 support.