ObjectDB ObjectDB

Internal Website Search

71-80 of 200 resultsRefresh

Primary key generation problem after changing entity package

Hi, I changed package name for some of my entities in database. I added info in <schema><package... /></schema> of my configuration file - and the changes have been succesfully made in database. Unfortunately, sequences have been probably lost for changed entity classes. After schema change I

Internal Exception and Index Problems

the super class). You can avoid this issue by restarting the ObjectDB server after every such schema change. Future versions of ObjectDB may support schema changes without restarting the server, or ... the server after schema changes. support Support But in our case a server restart doesn't help


Static Field javax.jdo.Constants String JDOQUERY_XSD_RESOURCE The name of the resource for the XML schema of the standard JDO query metadata file. Since: JDO 2.1


Static Field javax.jdo.Constants String JDO_XSD_RESOURCE The name of the resource for the XML schema of the standard JDO metadata file. Since: JDO 2.1


Static Field javax.jdo.Constants String JDO_XSD_NS The standard JDO metadata schema namespace. Constant value is http://java.sun.com/xml/ns/jdo/jdo. Since: JDO 2.1


Static Field javax.jdo.Constants String JDOCONFIG_XSD_RESOURCE The name of the resource for the XML schema of the standard JDO configuration file. Since: JDO 2.1


Static Field javax.jdo.Constants String JDOCONFIG_XSD_NS The standard JDO configuration schema namespace. Constant value is http://java.sun.com/xml/ns/jdo/jdoconfig. Since: JDO 2.1


Static Field javax.jdo.Constants String JDOQUERY_XSD_NS The standard JDO query schema namespace. Constant value is http://java.sun.com/xml/ns/jdo/jdoquery. Since: JDO 2.1

getPersistenceManagerFactory(overrides, name, resourceLoader, pmfLoader)

.ConnectionFactory2Name", "javax.jdo.option.Mapping", "javax.jdo.mapping.Catalog", "javax.jdo.mapping.Schema


javax.jdo.annotations Annotation Unique Target: Classes and fields (including property get methods) Annotation for a database unique constraint. Used for database schema generation to create unique constraints. Also used to reorder database operations when flushing changes to avoid unique

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?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support