ObjectDB ObjectDB

Internal Website Search

61-70 of 200 resultsRefresh

Unexpected exception during open the database

disabling index activation by using a special configuration with index-update disabled. support Support ... present in the configuration file. Your comment suggests that the default value for this is tag ... (see the stack trace at post #1) Therefore, please verify that the correct configuration file is changed

multi EntityManager with Spring Boot, but 'Too many persistable types (>10)

, and two objectdb server with different port. My JPA configuration is @Configuration ... .objectdb.jpa.Provider(); } }; } } JpaConfig2.java @Configuration ... that ObjectDB cannot find the activation code in the configuration file. See this manual page

createEntityManagerFactory(persistenceUnitName, properties)

of these properties override any values that may have been configured elsewhere. Returns: the factory that creates EntityManagers configured according to the specified persistence unit. Since: JPA 1.0

Best practise loading big data

that, too. We would kindly ask you to give us some hints or advice how to access the data or how to configure the DB ... sizes of caches and how to configure them. Please clarify whether the RAM is released when you close ... is invoked that this delay should not concern. If reducing the cache size in the ObjectDB configuration, as


Method javax.persistence.EntityManagerFactory Map<String,Object> getProperties() Get the properties and associated values that are in effect for the entity manager factory. Changing the contents of the map does not change the configuration in effect. Returns: properties Throws


Static Field javax.jdo.Constants String PROPERTY_PREFIX_INSTANCE_LIFECYCLE_LISTENER Prefix used to configure javax.jdo.listener.InstanceLifecycleListener instances externally. To configure an InstanceLifecycleListener via properties, create a property name with the prefix of this constant


Method javax.jdo.PersistenceManagerFactory Properties getProperties() Return non-configurable properties of this PersistenceManagerFactory. Properties with keys VendorName and VersionNumber are required. Other keys are optional. Returns: the non-configurable properties of this PersistenceManagerFactory. Since: JDO 1.0

getPersistenceManagerFactory(overrides, name, resourceLoader, pmfLoader)

a PersistenceManagerFactory configured based on the properties stored in the resource at name, or, if not found, returns ... PersistenceManagerFactory is not configurable (the setXXX methods will throw an exception). This method

addInstanceLifecycleListener(listener, classes)

are considered to be configuration methods and can only be called when the PersistenceManagerFactory is configurable (before the first time getPersistenceManager is called). The classes parameter identifies


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

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