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Tutorial
6

Step 1: Create a Java Project

). The name of the Main class should be tutorial.Main. Verify that exactly this case sensitive fully qualified class name is set (you may use copy & paste). Click the Finish button to create ... with ObjectDB/JPA support. The next step is creating a JPA Entity class.
Manual
6

Database Connection using JPA

defines classes that implement these interfaces. When you use ObjectDB you work with instances of ObjectDB classes that implement these interfaces, and because standard JPA interfaces are used ... a static factory method of the JPA bootstrap class, Persistence: EntityManagerFactory emf
Manual
6

Locking in JPA

some ORM JPA providers) is defined in the entity class or not. Pessimistic Locking The main ... employee = em.find( Employee.class, 1, LockModeType.PESSIMISTIC_WRITE); Similarly, the refresh ... ", 2000); Employee employee = em.find(       Employee.class, 1, LockModeType.PESSIMISTIC_WRITE
Manual
6

Query Parameters in JPA [2011-04-01]

( "SELECT c FROM Country c WHERE c.name = :name", Country.class); return query.setParameter ... .createQuery( "SELECT c FROM Country c WHERE c.name = ?1", Country.class); return query ... + "'", Country.class); return query.getSingleResult(); } Instead of using a parameter
Manual
6

Query Parameters in JPA

( "SELECT c FROM Country c WHERE c.name = :name", Country.class); return query.setParameter ... .createQuery( "SELECT c FROM Country c WHERE c.name = ?1", Country.class); return query ... + "'", Country.class); return query.getSingleResult(); } Instead of using a parameter
JPA Doc
5

javax.persistence.EntityManager

instance is defined by a persistence unit. A persistence unit defines the set of all classes ... string is found to be invalid Since: JPA 1.0 TypedQuery createNamedQuery(String name, ClassClass resultClass) Create an instance
JPA Doc
5

javax.persistence.metamodel.EntityType

the attributes of the managed type. Returns: attributes of the managed type Since: JPA 2.0 Class getCollection(String name, Class elementType) Return ... (String name, Class elementType) Return the Collection-valued attribute declared by the managed
JDO Doc
5

javax.jdo.annotations.PersistenceCapable

javax.jdo.annotations Annotation PersistenceCapable Target: Classes Annotation for whether the class or interface is persistence-capable. Since: JDO 2.1 String cacheable Whether this class is cacheable in a Level2 cache. Whether this class is cacheable in a Level2 cache. Default value: "true
Manual
5

GROUP BY and HAVING clauses

q = cb.createQuery(Country.class); Root c = q.from(Country.class); q.multiselect(c
Tutorial
5

Step 1: Create a Maven Web Project

>        enhance        process-classes                javaclass.