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1

isLoadedWithReference(entity, attributeName)

to obtain a reference to the attribute value. (This access is safe because providers which might trigger
1

AccessType.FIELD

Enum Constant javax.persistence.AccessType FIELD Field-based access is used. Since: JPA 2.0
1

javax.persistence.spi.ProviderUtil

. (This access is safe because providers which might trigger the loading of the attribute state
1

getStackTrace()

Method java.lang.Throwable StackTraceElement[] getStackTrace() Provides programmatic access to the stack trace information printed by printStackTrace(). Returns an array of stack trace elements, each representing one stack frame. The zeroth element of the array (assuming the array's length is non
1

getPersistenceUnitUtil()

Method javax.persistence.EntityManagerFactory PersistenceUnitUtil getPersistenceUnitUtil() Return interface providing access to utility methods for the persistence unit. Returns: PersistenceUnitUtil interface Throws: IllegalStateException - if the entity manager factory has been closed Since: JPA 2.0
1

javax.persistence.metamodel.Metamodel

javax.persistence.metamodel Interface Metamodel Provides access to the metamodel of persistent entities in the persistence unit. Since: JPA 2.0 EmbeddableType<X> embeddable(Class<X> cls) Return the metamodel embeddable type representing the embeddable class. Return the metamodel embeddable type
0

preClear(event)

, so access to fields is not mediated. Parameters: event - the clear event. Since: JDO 2.0
0

setMultithreaded(flag)

Method javax.jdo.PersistenceManager void setMultithreaded( boolean flag ) Set the Multithreaded flag for this PersistenceManager. Applications that use multiple threads to invoke methods or access fields from instances managed by this PersistenceManager must set this flag to true. Instances managed
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preDelete(event)

Method javax.jdo.listener.DeleteLifecycleListener void preDelete( InstanceLifecycleEvent event ) Invoked whenever a persistent instance is deleted, for example during javax.jdo.PersistenceManager.deletePersistent. Access to field values within this call are permitted. This method is called before
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postDelete(event)

Method javax.jdo.listener.DeleteLifecycleListener void postDelete( InstanceLifecycleEvent event ) Invoked whenever a persistent instance is deleted, for example during javax.jdo.PersistenceManager.deletePersistent. This method is called after the instance transitions to persistent-deleted. Access

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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