About mapped

manual

JPA Primary Key

Explains how to define and use primary keys in JPA, including composite and embedded primary keys.... Specifies a composite primary key class that is mapped to multiple fields or properties of the entity. See JavaDoc Reference ... Specifies a composite primary key class that is mapped to multiple fields or properties of the entity. See JavaDoc Reference ...

 
manual

Locking in JPA

Explains how to use optimistic locking and pessimistic locking in JPA. JPA 2 supports both optimistic locking and pessimistic locking . Locking is essential to avoid update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking in ObjectDB (and in JPA) is always at the da ...

 
release

2.4.3

... Version 2.4.2 Fixed a bug in handling mapped super class with no primary key ( issue #162 ). Fixed a ... #159 ). Fixed an initialization of inverse (mapped by) fields by JOIN FETCH ( issue #161 ). Fixed type ...

 
release

2.3.7

... ( issue #128 ). Fixed a bug in handling mapped super classes. Fixed bugs in using casting in queries ... Added support of MEMBER OF for inverse (mapped by) collections. Changed logging of incomplete recovery ...

 
api-jdo

javax.jdo.Query

The Query interface allows applications to obtain persistent instances, values, and aggregate data from the data store.(Interface of JDO)

 
api-jpa

javax.persistence.OneToOne

Defines a single-valued association to another entity that has one-to-one multiplicity.(Annotation of JPA)

 
api-jpa

refresh(entity, lockMode, properties)

Refresh the state of the instance from the database, overwriting changes made to the entity, if any, and lock it with respect to given lock mode type and with specified properties.(Method of javax.persistence.EntityManager)

 
release

2.3.6

... Added support of MEMBER OF for inverse (mapped by) collections. Changed logging of incomplete recovery ... Fixed a NullPointerException in accessing inverse (mapped by) collection fields with cascading persist after updating the database ...

 
api-jpa

find(entityClass, primaryKey, properties)

Find by primary key, using the specified properties.(Method of javax.persistence.EntityManager)

 
api-jpa

find(entityClass, primaryKey, lockMode, properties)

Find by primary key and lock, using the specified properties.(Method of javax.persistence.EntityManager)