About persistence

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JPA Doc
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javax.persistence.EntityManagerFactory

javax.persistence Interface EntityManagerFactory Interface used to interact with the entity manager factory for the persistence unit. When the application has finished using the entity manager ... an instance of Metamodel interface for access to the metamodel of the persistence unit. Return
JPA Doc
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javax.persistence.LockModeType

javax.persistence Enum LockModeType java.lang.Object java.lang.Enumpersistence.LockModeType> javax.persistence.LockModeType Implemented Interfaces: Serializable, Comparable ... .persistence.EntityManager methods that take locks ( lock, find, or refresh) or to the Query
JPA Doc
24

javax.persistence.PersistenceUtil

javax.persistence Interface PersistenceUtil Subinterfaces: PersistenceUnitUtil Utility interface between the application and the persistence provider(s). The PersistenceUtil interface instance obtained from the Persistence class is used to determine the load state of an entity or entity attribute
JDO Doc
24

Persistent.persistenceModifier

Annotation Element javax.jdo.annotations.Persistent PersistenceModifier persistenceModifier ... persistenceModifier is for embedded instances in which a member is not persistent but in the non-embedded instances the member is persistent. Note that it is not portable to specify a member to be not
JPA Doc
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createEntityManagerFactory(persistenceUnitName)

Static Method javax.persistence.Persistence EntityManagerFactory createEntityManagerFactory(   String persistenceUnitName ) Create and return an EntityManagerFactory for the named persistence unit. Parameters: persistenceUnitName - the name of the persistence unit Returns: the factory that creates
JPA Doc
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createEntityManagerFactory(persistenceUnitName, properties)

Static Method javax.persistence.Persistence EntityManagerFactory createEntityManagerFactory ... persistence unit using the given properties. Parameters: persistenceUnitName - the name of the persistence unit properties - Additional properties to use when creating the factory. The values
JPA Doc
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javax.persistence.FetchType

javax.persistence Enum FetchType java.lang.Object java.lang.Enumpersistence.FetchType> javax.persistence.FetchType Implemented Interfaces: Serializable, Comparablepersistence provider runtime that data must be eagerly fetched. The LAZY strategy is a hint
JPA Doc
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javax.persistence.GeneratedValue

javax.persistence Annotation GeneratedValue Target: Fields (including property get methods ... TableGenerator annotation. Defaults to the id generator supplied by persistence provider. Default value ... that the persistence provider must use to generate the annotated entity primary key. (Optional) The primary key
JPA Doc
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javax.persistence.JoinColumn

javax.persistence Annotation JoinColumn Target: Fields (including property get methods) Specifies ... ) Whether the column is included in SQL INSERT statements generated by the persistence provider. (Optional) Whether the column is included in SQL INSERT statements generated by the persistence
JPA Doc
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javax.persistence.MapKey

javax.persistence Annotation MapKey Target: Fields (including property get methods) Specifies ... a persistent field or property of the entity that is the value of the map. If a persistent field or property ... String name (Optional) The name of the persistent field or property of the associated entity