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javax.persistence Annotation PreRemove Target: Callback methods Is used to specify callback methods for the corresponding lifecycle event. This annotation may be applied to methods of an entity class, a mapped superclass, or a callback listener class. Since: JPA 1.0 Learn how to define and use JPA


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


javax.persistence.criteria Interface CriteriaBuilder.In<T> Superinterfaces: Expression<Boolean>, Predicate, Selection<Boolean>, TupleElement<Boolean> Interface used to build in predicates. Since: JPA 2.0 Selection<X> alias(String name) Assigns an alias to the selection item. Assigns an alias


javax.persistence Interface TupleElement<X> Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, Selection, SetJoin, Subquery The TupleElement interface defines an element


javax.persistence Interface Tuple Interface for extracting the elements of a query result tuple. Since: JPA 2.0 See Also: TupleElement Object get(int i) Get the value of the element at the specified position in the result tuple. Get the value of the element at the specified position in the result


javax.persistence Annotation SqlResultSetMappings Target: Classes Is used to define one or more SqlResultSetMapping annotations. Since: JPA 1.0 SqlResultSetMapping[] value One or more SqlResultSetMapping annotations. One or more SqlResultSetMapping annotations. Since: JPA 1.0


javax.persistence.metamodel Interface Bindable<T> Subinterfaces: CollectionAttribute, EntityType, ListAttribute, MapAttribute, PluralAttribute, SetAttribute, SingularAttribute Instances of the type Bindable represent object or attribute types that can be bound into a Path. Since: JPA 2.0 Class<T


javax.persistence.criteria Interface From<Z,X> Superinterfaces: Expression<X>, FetchParent<Z,X>, Path<X>, Selection<X>, TupleElement<X> Subinterfaces: CollectionJoin, Join, ListJoin, MapJoin, PluralJoin, Root, SetJoin Represents a bound type, usually an entity that appears in the from clause


javax.persistence Annotation EntityResult Target: Used to map the SELECT clause of a SQL query to an entity result. If this annotation is used, the SQL statement should select all of the columns that are mapped to the entity object. This should include foreign key columns to related entities


Enum Constant javax.jdo.ObjectState HOLLOW_PERSISTENT_NONTRANSACTIONAL Since: JDO 1.0

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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