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2

getModel()

Method javax.persistence.criteria.MapJoin MapAttribute<?,K,V> getModel() Return the metamodel representation for the map attribute. Returns: metamodel type representing the Map that is the target of the join Since: JPA 2.0
2

javax.persistence.criteria.Expression

javax.persistence.criteria Interface Expression<T> Superinterfaces: Selection<T>, TupleElement<T> Subinterfaces: CollectionJoin, Case, Coalesce, In, SimpleCase, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, SetJoin, Subquery Type for query expressions
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javax.persistence.OneToMany

) @JoinColumn(name="CUST_ID") // join column is in table for Order public Set getOrders
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javax.persistence.Inheritance

@Inheritance(strategy=JOINED) public class Customer { ... } @Entity public class
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javax.persistence.DiscriminatorColumn

javax.persistence Annotation DiscriminatorColumn Target: Classes Specifies the discriminator column for the SINGLE_TABLE and JOINED Inheritance mapping strategies. The strategy and the discriminator column are only specified in the root of an entity class hierarchy or subhierarchy in
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javax.persistence.criteria.Selection

javax.persistence.criteria Interface Selection<X> Superinterfaces: TupleElement<X> Subinterfaces: CollectionJoin, CompoundSelection, Case, Coalesce, In, SimpleCase, Expression, From, Join, ListJoin, MapJoin, ParameterExpression, Path, PluralJoin, Predicate, Root, SetJoin, Subquery The Selection
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JoinColumns.value

Annotation Element javax.persistence.JoinColumns JoinColumn[] value The join columns that map the relationship. Since: JPA 1.0
2

getModel()

Method javax.persistence.criteria.CollectionJoin CollectionAttribute<?,E> getModel() Return the metamodel representation for the collection attribute. Returns: metamodel type representing the Collection that is the target of the join Since: JPA 2.0
0

Element.generateForeignKey

Annotation Element javax.jdo.annotations.Element 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 primary key constraint Default value: "" Since: JDO 2.1
0

Key.generateForeignKey

Annotation Element javax.jdo.annotations.Key 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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