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getPersistenceManagerFactory(name, loader)

Static Method javax.jdo.JDOHelper PersistenceManagerFactory getPersistenceManagerFactory( String name, ClassLoader loader ) Returns a named PersistenceManagerFactory or persistence unit. Parameters: name - loader - Since: JDO 1.0 See Also: getPersistenceManagerFactory(Map,String,ClassLoader,ClassLoader)
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getPersistenceManagerFactory(name)

Static Method javax.jdo.JDOHelper PersistenceManagerFactory getPersistenceManagerFactory( String name ) Returns a named PersistenceManagerFactory or persistence unit. Parameters: name - Since: JDO 2.1 See Also: getPersistenceManagerFactory(Map,String,ClassLoader,ClassLoader)
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getObjectState(pc)

Static Method javax.jdo.JDOHelper ObjectState getObjectState( Object pc ) Accessor for the state of the passed object. Parameters: pc - The object Returns: The object state Since: JDO 2.1
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getObjectIds(pcs)

Static Method javax.jdo.JDOHelper Object[] getObjectIds( Object[] pcs ) Get object ids for an array of instances. For each instance in the parameter, the getObjectId method is called. This method returns one identity instance for each element in the parameter. The order of instances of the returned
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getPersistenceManagerFactory()

Static Method javax.jdo.JDOHelper PersistenceManagerFactory getPersistenceManagerFactory() Get the anonymous PersistenceManagerFactory configured via the standard configuration file resource "META-INF/jdoconfig.xml", using the current thread's context class loader to locate the configuration file
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getPersistenceManager(pc)

Static Method javax.jdo.JDOHelper PersistenceManager getPersistenceManager( Object pc ) Return the associated PersistenceManager if there is one. Transactional and persistent instances return the associated PersistenceManager. Transient non-transactional instances and instances of classes
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getObjectIds(pcs)

Static Method javax.jdo.JDOHelper Collection getObjectIds( Collection pcs ) Get object ids for a collection of instances. For each instance in the parameter, the getObjectId method is called. This method returns one identity instance for each element in the parameter. The order of iteration
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getObjectId(pc)

Static Method javax.jdo.JDOHelper Object getObjectId( Object pc ) Return a copy of the JDO identity associated with the parameter instance. Persistent instances of PersistenceCapable classes have a JDO identity managed by the PersistenceManager. This method returns a copy of the ObjectId
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isDetached(pc)

Static Method javax.jdo.JDOHelper boolean isDetached( Object pc ) Tests whether the parameter instance has been detached. Instances that have been detached return true. Transient instances return false. Parameters: pc - the instance Returns: true if this instance is detached. Since: JDO 2.0 See Also: PersistenceCapable.jdoIsDetached()
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isDeleted(pc)

Static Method javax.jdo.JDOHelper boolean isDeleted( Object pc ) Tests whether the parameter instance has been deleted. Instances that have been deleted in the current transaction return true. Transient instances and instances of classes that do not implement PersistenceCapable return false

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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