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Method javax.persistence.criteria.ListJoin ListAttribute<?,E> getModel() Return the metamodel representation for the list attribute. Returns: metamodel type representing the List that is the target of the join Since: JPA 2.0


Enum Constant javax.persistence.criteria.JoinType LEFT Left outer join. Since: JPA 2.0


Enum Constant javax.persistence.criteria.JoinType INNER Inner join. Since: JPA 2.0


Annotation Element javax.persistence.PrimaryKeyJoinColumn String name (Optional) The name of the primary key column of the current table. Defaults to the same name as the primary key column of the primary table of the superclass (JOINED mapping strategy); the same name as the primary key column


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.criteria Interface Path<X> Superinterfaces: Expression<X>, Selection<X>, TupleElement<X> Subinterfaces: CollectionJoin, From, Join, ListJoin, MapJoin, PluralJoin, Root, SetJoin Represents a simple or compound attribute path from a bound type or collection, and is a "primitive


specify this for a join column that corresponds to a primary key that is part of a foreign key. Default value: false Since: JPA 1.0


Annotation Element javax.persistence.SecondaryTable PrimaryKeyJoinColumn[] pkJoinColumns (Optional) The columns that are used to join with the primary table. Defaults to the column(s) of the same name(s) as the primary key column(s) in the primary table. Default value: {} Since: JPA 1.0


Annotation Element javax.jdo.annotations.Key String serialized Whether the key is to be stored serialized (into a single column of a join table). Returns: whether the key is to be stored serialized Default value: "" Since: JDO 2.1


Annotation Element javax.jdo.annotations.Value String generateForeignKey Generate or assume a foreign key constraint exists on the column or columns associated with this join. Specify "true" or "false". Returns: whether to generate or assume a foreign key constraint Default value: "" 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.

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