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that is used as the map key. Default: If the name element is not specified, the primary key of the associated entity is used as the map key. If the primary key is a composite primary key and is mapped as IdClass, an instance of the primary key class is used as the key.

of the superclass (JOINED mapping strategy); the same name as the primary key column of the primary table (SecondaryTable mapping); or the same name as the primary key column for the table for the referencing entity (OneToOne mapping).

of the primary table of the superclass (JOINED mapping strategy); the same name as the primary key column of the primary table (SecondaryTable mapping); or the same name as the primary key column for the table for the referencing entity (OneToOne mapping).

.persistence">javax.persistence.EntityManagerMap<String,Object> getProperties()map does not change the configuration ... > map of properties and hints in effect for entity manager

column. When used with entity relationship mappings other than the cases ... with a unidirectional OneToMany foreign key mapping, the referenced column is in the table ... is part of the inverse join definition. When used in a CollectionTable mapping

mappings of multiple relationship properties or fields. Example: mappings that are to be applied to the relationship field or property . (Required) The association override mappings

> or OneToOne relationship attribute that provides the mapping ... id; ... @MapsId("empid") // maps the empid attribute of embedded id ... , the relationship maps the entity’s primary key.

.Queryvoid setExtensions(  Map extensions) Set multiple extensions, or use null to clear all extensions. Map keys ... - the map of extensions

="description"> Column definition(s) for this member. Used for mapping multiple columns ... member in the other class where this value is mapped (bidirectional relationship). mapped (bidirectional relationship).

when using "value-map" strategy. The value for the discriminator for objects of this class when using "value-map" strategy ... > The value for the discriminator for objects of this class when using "value-map