About persist

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JPA Doc
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javax.persistence.EntityManager

javax.persistence Interface EntityManager Interface used to interact with the persistence context. An EntityManager instance is associated with a persistence context. A persistence context is a set of entity instances in which for any persistent entity identity there is a unique entity instance
JPA Doc
30

javax.persistence.spi.PersistenceUnitInfo

javax.persistence.spi Interface PersistenceUnitInfo Interface implemented by the container and used by the persistence provider when creating an javax.persistence.EntityManagerFactory. Since: JPA 1.0 ... are only transformed once within the same classloading scope, regardless of how many persistence units
Manual
29

Chapter 2 - JPA Entity Classes

Explains how to define and use JPA entity classes and other JPA persistable types.
JPA Doc
26

javax.persistence.spi.PersistenceProvider

javax.persistence.spi Interface PersistenceProvider Interface implemented by the persistence provider. It is invoked by the container in Java EE environments and by the javax.persistence.Persistence class in Java SE environments to create an javax.persistence.EntityManagerFactory. Since: JPA 1.0
JPA Doc
26

javax.persistence.PersistenceContext

javax.persistence Annotation PersistenceContext Target: Classes and fields (including property get methods) Expresses a dependency on a container-managed EntityManager and its associated persistence ... [] properties (Optional) Properties for the container or persistence provider. (Optional) Properties
JPA Doc
26

javax.persistence.PersistenceUnitUtil

javax.persistence Interface PersistenceUnitUtil Superinterfaces: PersistenceUtil Utility interface between the application and the persistence provider managing the persistence unit. The methods ... for this persistence unit or on new entity instances. Since: JPA 2.0 Object getIdentifier(Object
JPA Doc
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javax.persistence.GenerationType

javax.persistence Enum GenerationType java.lang.Object java.lang.Enumpersistence.GenerationType> javax.persistence.GenerationType Implemented Interfaces: Serializable ... /JPA manual. GenerationType AUTO Indicates that the persistence provider should pick an appropriate
JDO Doc
26

javax.jdo.annotations.Persistent

javax.jdo.annotations Annotation Persistent Target: Fields (including property get methods) Annotation for defining the persistence of a member. This corresponds to the xml elements "field ... persistent but in the non-embedded instances the member is persistent. Note that it is not portable
JPA Doc
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javax.persistence.TypedQuery

javax.persistence Interface TypedQuery Superinterfaces: Query Interface used to control ... deleted Throws: IllegalStateException - if called for a Java Persistence query language SELECT statement ... Throws: IllegalStateException - if the query is found not to be a Java Persistence query language
JPA Doc
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javax.persistence.OrderColumn

javax.persistence Annotation OrderColumn Target: Fields (including property get methods) Specifies a column that is used to maintain the persistent order of a list. The persistence provider is responsible for maintaining the order upon retrieval and in the database. The persistence provider