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JPA Doc
4

javax.persistence.RollbackException

the cause of this throwable or null if the cause is nonexistent or unknown. Returns the cause of this throwable or null if the cause is nonexistent or unknown. (The cause is the throwable that caused ... via one of the constructors requiring a Throwable, or that was set after creation with the initCause(Throwable
JPA Doc
4

javax.persistence.TransactionRequiredException

() Throwable getCause() Returns the cause of this throwable or null if the cause is nonexistent or unknown. Returns the cause of this throwable or null if the cause is nonexistent or unknown. (The cause ... that was supplied via one of the constructors requiring a Throwable, or that was set after creation
JPA Doc
4

javax.persistence.JoinColumn

a column for joining an entity association or element collection. If the JoinColumn annotation ... . If the join is for a OneToOne or ManyToOne mapping using a foreign key mapping strategy, the foreign key column is in the table of the source entity or embeddable. If the join is for a unidirectional
JPA Doc
4

javax.persistence.LockModeType

.persistence.EntityManager methods that take locks ( lock, find, or refresh) or to the Query.setLockMode() or TypedQuery.setLockMode() method. Lock modes can be used to specify either optimistic or ... that row and obtains the modified value, before T1 has committed or rolled back. Transaction T2
JPA Doc
4

javax.persistence.OrderBy

the ordering of the elements of a collection valued association or element collection at the point when the association or collection is retrieved. The syntax of the value ordering element is an orderby_list, as follows: orderby_list::= orderby_item [,orderby_item]* orderby_item::= [property_or
JDO Doc
3

javax.jdo.annotations.Join

foreign key constraint Default value: "" Since: JDO 2.1 String generateForeignKey Generate or assume a foreign key constraint exists on the column or columns associated with this join. Generate or assume a foreign key constraint exists on the column or columns associated with this join. Specify "true" or
JDO Doc
3

javax.jdo.spi.JDOImplHelper

class. The registration will be done in the class named JDOImplHelper loaded by the same or an ancestor ... . Returns: The PersistenceCapable superclass for this class, or null if there isn't one. Since: JDO 1 ... which will own the new instance. Returns: the new instance, or null if the class is not registered
JPA Doc
3

JPA Exceptions

to retrieve entity objects from the database. For example, when a required entity object is not found: or
Manual
3

ObjectDB Developer's Guide [2018-08-07]

ObjectDB. Prerequisite Knowledge A prior knowledge of database programming (SQL, JDBC, ORM or JPA) is not
Manual
3

SSL Configuration

" password="pwd" /> The enabled attribute of the ssl element (whose value is "true" or "false