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5

getPersistenceManagerFactory(props)

Static Method javax.jdo.JDOHelper PersistenceManagerFactory getPersistenceManagerFactory( Map props ) Get a PersistenceManagerFactory based on a Properties instance, using the current thread's context class loader to locate the PersistenceManagerFactory class. Parameters: props - a Properties
5

isPersistent(pc)

Static Method javax.jdo.JDOHelper boolean isPersistent( Object pc ) Tests whether the parameter instance is persistent. Instances that represent persistent objects in the data store return true. Transient instances and instances of classes that do not implement PersistenceCapable return false
5

getPersistenceManagerFactory(pmfClassLoader)

Static Method javax.jdo.JDOHelper PersistenceManagerFactory getPersistenceManagerFactory( ClassLoader pmfClassLoader ) Get the anonymous PersistenceManagerFactory configured via the standard configuration file resource "META-INF/jdoconfig.xml", using the given class loader. Parameters
5

isNew(pc)

Static Method javax.jdo.JDOHelper boolean isNew( Object pc ) Tests whether the parameter instance has been newly made persistent. Instances that have been made persistent in the current transaction return true. Transient instances and instances of classes that do not implement PersistenceCapable
5

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
5

isDirty(pc)

Static Method javax.jdo.JDOHelper boolean isDirty( Object pc ) Tests whether the parameter instance is dirty. Instances that have been modified, deleted, or newly made persistent in the current transaction return true. Transient instances and instances of classes that do not implement
5

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
5

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()
5

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
5

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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