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JPA Doc
9

javax.persistence.criteria.Root

> get( MapAttribute map) Create a path corresponding to the referenced map-valued attribute. Create a path corresponding to the referenced map-valued attribute. Parameters: map - map-valued attribute ... join Since: JPA 2.0 MapJoin join( MapAttribute map) Create an inner join
JPA Doc
9

javax.persistence.criteria.SetJoin

otherwise exist Since: JPA 2.0 Expression get( MapAttribute map) Create a path corresponding to the referenced map-valued attribute. Create a path corresponding to the referenced map-valued attribute. Parameters: map - map-valued attribute Returns: expression corresponding to the referenced
JPA Doc
9

javax.persistence.JoinColumn

: unidirectional one-to-many association using a foreign key mapping // In Customer class @OneToMany ... . If the join is for a OneToOne or ManyToOne mapping using a foreign key mapping strategy ... OneToMany mapping using a foreign key mapping strategy, the foreign key is in the table
JPA Doc
9

javax.persistence.metamodel.ManagedType

represent entity, mapped superclass, and embeddable types. Since: JPA 2.0 Attribute getAttribute ... in the managed type Since: JPA 2.0 MapAttribute getDeclaredMap(String name) Return the Map-valued attribute declared by the managed type that corresponds to the specified name. Return the Map
JPA Doc
8

javax.persistence.MappedSuperclass

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
JPA Doc
8

javax.persistence.metamodel.EmbeddableType

the Map-valued attribute declared by the managed type that corresponds to the specified name. Return the Map-valued attribute declared by the managed type that corresponds to the specified name ... > valueType) Return the Map-valued attribute declared by the managed type that corresponds to the specified
JPA Doc
8

MapKeyJoinColumn.table

that contains the foreign key column. If the join is for a map key for an element collection, the foreign key column is in the collection table for the map value. If the join is for a map key ... key mapping strategy, the foreign key column for the map key is in the table of the entity
JDO Doc
8

javax.jdo.Query

 variableDeclaration, String candidateCollectionExpression, Map parameters) Add a subquery to this query. Add a subquery to this query. The Map version of the method treats the key of each map entry as ... for either the parameter or the value of the String[], or for any map key or value, that expression is ignored
JPA Doc
8

javax.persistence.MapKey

the map key for associations of type java.util.Map when the map key is itself the primary key or a persistent field or property of the entity that is the value of the map. If a persistent field or property other than the primary key is used as a map key then it is expected to have a uniqueness constraint
FAQ
7

What are the main benefits of using ObjectDB?

the execution time of object oriented applications significantly. For instance, collection and map