ObjectDB ObjectDB

Internal Website Search

131-140 of 200 resultsRefresh


javax.persistence.criteria Interface SetJoin<Z,E> Superinterfaces: Expression<E>, FetchParent<Z,E>, From<Z,E>, Join<Z,E>, Path<E>, PluralJoin<Z,Set<E>,E>, Selection<E>, TupleElement<E> The SetJoin interface is the type of the result of joining to a collection over an association or element


javax.persistence.criteria Interface Subquery<T> Superinterfaces: AbstractQuery<T>, Expression<T>, Selection<T>, TupleElement<T> The Subquery interface defines functionality that is specific to subqueries. A subquery has an expression as its selection item. Since: JPA 2.0 Selection<X> alias(String


javax.persistence Annotation QueryHint Target: Used to supply a query property or hint to the NamedQuery or NamedNativeQuery annotation. Vendor-specific hints that are not recognized by a provider are ignored. Since: JPA 1.0 String name Name of the hint. Name of the hint. Since: JPA 1.0 String


javax.persistence.criteria Interface Join<Z,X> Superinterfaces: Expression<X>, FetchParent<Z,X>, From<Z,X>, Path<X>, Selection<X>, TupleElement<X> Subinterfaces: CollectionJoin, ListJoin, MapJoin, PluralJoin, SetJoin A join to an entity, embeddable, or basic type. Since: JPA 2.0 Learn how to use


javax.persistence Annotation MappedSuperclass Target: Classes Designates a class whose mapping information is applied to the entities that inherit from it. A mapped superclass has no separate table defined for it. A class designated with the MappedSuperclass annotation can be mapped in the same way


javax.persistence.criteria Interface CriteriaBuilder.Coalesce<T> Superinterfaces: Expression<T>, Selection<T>, TupleElement<T> Interface used to build coalesce expressions. A coalesce expression is equivalent to a case expression that returns null if all its arguments evaluate to null


javax.persistence.criteria Interface CriteriaBuilder.Case<R> Superinterfaces: Expression<R>, Selection<R>, TupleElement<R> Interface used to build general case expressions. Case conditions are evaluated in the order in which they are specified. Since: JPA 2.0 Selection<X> alias(String name) Assigns


javax.persistence Annotation IdClass Target: Classes Specifies a composite primary key class that is mapped to multiple fields or properties of the entity. The names of the fields or properties in the primary key class and the primary key fields or properties of the entity must correspond


javax.persistence Annotation MapKeyJoinColumns Target: Fields (including property get methods) Supports composite map keys that reference entities. The MapKeyJoinColumns annotation groups MapKeyJoinColumn annotations. When the MapKeyJoinColumns annotation is used, both the name


Static Field javax.jdo.Constants String ANONYMOUS_PERSISTENCE_MANAGER_FACTORY_NAME The name of the anonymous PersistenceManagerFactory, which is the empty string. Since: JDO 2.1

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support