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Advanced JPA Topics

Describes advanced JPA topics - detached entity objects, lock management and entity lifecycle events.
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javax.jdo.listener.StoreLifecycleListener

javax.jdo.listener Interface StoreLifecycleListener Superinterfaces: InstanceLifecycleListener This interface is implemented by listeners to be notified of store events. Since: JDO 2.0 void postStore( InstanceLifecycleEvent event) Invoked whenever a persistent instance is stored, for example
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javax.jdo.listener.DirtyLifecycleListener

javax.jdo.listener Interface DirtyLifecycleListener Superinterfaces: InstanceLifecycleListener This interface is implemented by listeners to be notified of dirty events. Since: JDO 2.0 void postDirty( InstanceLifecycleEvent event) Invoked whenever a persistent instance is first made dirty
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javax.jdo.listener.DetachLifecycleListener

javax.jdo.listener Interface DetachLifecycleListener Superinterfaces: InstanceLifecycleListener This interface is implemented by listeners to be notified of detach events. Since: JDO 2.0 void postDetach( InstanceLifecycleEvent event) This method is called during the execution of javax.jdo
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javax.jdo.listener.ClearCallback

javax.jdo.listener Interface ClearCallback Subinterfaces: InstanceCallbacks This interface is used to notify instances of clear events. Since: JDO 2.0 void jdoPreClear() Called before the values in the instance are cleared. Called before the values in the instance are cleared. Transient fields
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javax.jdo.listener.DetachCallback

javax.jdo.listener Interface DetachCallback This interface is used to notify instances of detach events. Since: JDO 2.0 void jdoPostDetach(Object detached) This method is called during the execution of javax.jdo.PersistenceManager.detachCopy on the detached instance after the copy
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javax.jdo.listener.DeleteCallback

javax.jdo.listener Interface DeleteCallback Subinterfaces: InstanceCallbacks This interface is used to notify instances of delete events. Since: JDO 2.0 void jdoPreDelete() Called before the instance is deleted. Called before the instance is deleted. This method is called before the state
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javax.jdo.listener.AttachCallback

javax.jdo.listener Interface AttachCallback This interface is used to notify instances of attach events. Since: JDO 2.0 void jdoPostAttach(Object attached) This method is called during the execution of javax.jdo.PersistenceManager.makePersistent on the persistent instance after the copy
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javax.jdo.listener.LoadCallback

javax.jdo.listener Interface LoadCallback Subinterfaces: InstanceCallbacks This interface is used to notify instances of load events. Since: JDO 2.0 void jdoPostLoad() Called after the values are loaded from the data store into this instance. Called after the values are loaded from the data store
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javax.jdo.listener.StoreCallback

javax.jdo.listener Interface StoreCallback Subinterfaces: InstanceCallbacks This interface is used to notify instances of store events. Since: JDO 2.0 void jdoPreStore() Called before the values are stored from this instance to the data store. Called before the values are stored from this instance

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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