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8

javax.persistence.criteria.PluralJoin

Since: JPA 2.0 Attribute<?,?> getAttribute() Return the metamodel attribute corresponding to the join. Return the metamodel attribute corresponding to the join. Returns: metamodel attribute corresponding ... > getModel() Return the metamodel representation for the collection-valued attribute corresponding
8

javax.persistence.EntityManagerFactory

: IllegalStateException - if the entity manager factory has been closed Since: JPA 2.0 Metamodel getMetamodel() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns: Metamodel
8

javax.persistence.EntityManager

Metamodel getMetamodel() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns: Metamodel instance Throws: IllegalStateException - if the entity manager
7

getMetamodel()

Method javax.persistence.EntityManagerFactory Metamodel getMetamodel() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns: Metamodel instance Throws: IllegalStateException - if the entity manager factory has been closed Since: JPA 2.0
7

getMetamodel()

Method javax.persistence.EntityManager Metamodel getMetamodel() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns: Metamodel instance Throws: IllegalStateException - if the entity manager has been closed Since: JPA 2.0
6

javax.persistence.criteria.Join

<?,?> getAttribute() Return the metamodel attribute corresponding to the join. Return the metamodel attribute corresponding to the join. Returns: metamodel attribute corresponding to the join Since: JPA 2.0 List
6

javax.persistence.criteria.Root

() Return the metamodel entity corresponding to the root. Return the metamodel entity corresponding to the root. Returns: metamodel entity corresponding to the root Since: JPA 2.0 Path<?> getParentPath
6

javax.persistence.criteria.Fetch

() Return the metamodel attribute corresponding to the fetch join. Return the metamodel attribute corresponding to the fetch join. Returns: metamodel attribute for the join Since: JPA 2.0 Set< Fetch<X
5

getModel()

Method javax.persistence.criteria.SetJoin SetAttribute<?,E> getModel() Return the metamodel representation for the set attribute. Returns: metamodel type representing the Set that is the target of the join Since: JPA 2.0
0

javax.jdo.JDOEntityManager

of objects that we are interested in Returns: the objects Since: JDO 2.1 Metamodel getMetamodel() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns

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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