Fast Object Database for Java - with JPA/JDO support

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addInstanceLifecycleListener(listener, classes)

( InstanceLifecycleListener listener, Class[] classes ) Add the parameter listener to the list of instance lifecycle event ... is configurable (before the first time getPersistenceManager is called). The classes parameter identifies all of the classes of interest. If the classes parameter is specified as null, events for all persistent

getManagedObjects(states, classes)

Method javax.jdo.PersistenceManager Set getManagedObjects( EnumSet states, Class... classes ) Get the objects managed by this persistence manager having the specified object states and being instances of the specified classes. Parameters: states - The states of objects


Method javax.jdo.PersistenceManager Set getManagedObjects( Class... classes ) Get the objects managed by this persistence manager being instances of the specified classes. Parameters: classes - The classes of objects that we are interested in Returns: the objects Since: JDO 2.1


javax.jdo.spi Class JDOPermission java.lang.Object java ... , Guard The JDOPermission class is for operations that are reserved for JDO implementations ... to malicious code. getMetadata This allows getting metadata for any PersistenceCapable class


javax.persistence Class Persistence java.lang.Object javax.persistence.Persistence Bootstrap class that is used to obtain an EntityManagerFactory in Java SE environments. The Persistence class is available in a Java EE container environment as well; however, support for the Java SE


Static Field javax.jdo.Constants String INSTANCE_LIFECYCLE_LISTENER_ATTRIBUTE_CLASSES The name of the instance lifecycle listener element's "classes" attribute. Since: JDO 2.1


Enum Constant javax.persistence.InheritanceType TABLE_PER_CLASS A table per concrete entity class. Since: JPA 1.0


javax.jdo.listener Class InstanceLifecycleEvent java.lang.Object java.util.EventObject javax.jdo.listener.InstanceLifecycleEvent Implemented Interfaces: Serializable This is the event class used in life cycle event notifications. Note that although InstanceLifecycleEvent inherits


Static Field javax.jdo.Constants String PMF_ATTRIBUTE_CLASS The name of the persistence manager factory element's "class" attribute. Since: JDO 2.1

JPA Persistable Types

. ObjectDB supports all the JPA persistable types, which are: User defined classes - Entity classes, Mapped superclasses, Embeddable classes. Simple Java data types: Primitive types, Wrappers, String ... and Serializable types (user or system defined). Note: Only instances of entity classes

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.

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