About reference

api-jpa

JPA 2 Annotations

Reference (JavaDoc) of all the JPA 2 annotations, including @Entity, @Embeddable, @NamedQuery, @GeneratedValue, etc. JPA defines dozens of annotations that can be divided into the following groups: Annotations for JPA aware classes: JPA Annotations for Classes JPA Annotations for JPQL Queries Annotations for fields in JP ...

 
api-jpa

FetchType.LAZY

Defines that data can be lazily fetched.(Enum Constant of javax.persistence.FetchType)

 
api-jdo

Index.unique

Whether this index is unique(Annotation Element of javax.jdo.annotations.Index)

 
api-jpa

currentTime()

Create expression to return current time.(Method of javax.persistence.criteria.CriteriaBuilder)

 
api-jdo

javax.jdo.annotations.Indices

Annotation for a group of index constraints.(Annotation of JDO)

 
api-jpa

createQuery(resultClass)

Create a CriteriaQuery object with the specified result type.(Method of javax.persistence.criteria.CriteriaBuilder)

 
api-jpa

createEntityManager()

Create a new application-managed EntityManager.(Method of javax.persistence.EntityManagerFactory)

 
manual

[ODB1] Chapter 4 - JDO Metadata

Shows how to define JDO metadata for persistence capable classes.... The embedded attribute is relevant for persistent reference fields. It indicates whether or not the content of the referred ... null-value attribute is also intended for persistent reference fields. It indicates whether the field can accept null values or ...

 
api-jpa

javax.persistence.ManyToMany

Defines a many-valued association with many-to-many multiplicity.(Annotation of JPA)

 
api-jpa

JPA Exceptions

Reference (JavaDoc) of the JPA exception classes, including PersistenceException, EntityExistsException, EntityNotFoundException, LockTimeoutException, NonUniqueResultException, NoResultException, OptimisticLockException, PessimisticLockException, QueryTimeoutException, RollbackException, TransactionRequiredException. JPA exceptions are represented by a hierarchy of unchecked exceptions: java.lang.Object java.lang.Throwable java.lang.Exception java.lang.RuntimeException javax.persi ...