12 | Extended mapping-definitions different 'tables'. Please clarify: Is it only for improving performance, or do you also expect a change in functionality? How exactly performance should be improved if the functionality remains ... Is it only for improving performance, or do you also expect a change in functionality? -> Yes |
3 | javax.persistence.criteria.CollectionJoin. Parameters: name - alias Returns: selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform a typecast upon the expression, returning a new expression object. Perform a typecast |
3 | javax.persistence.criteria.Predicate(Class<X> type) Perform a typecast upon the expression, returning a new expression object. Perform |
3 | lock(entity, lockMode) provider must also perform optimistic version checks when obtaining the database lock ... - if the entity does not exist in the database when pessimistic locking is performed |
3 | javax.persistence.criteria.Root(Class<X> type) Perform a typecast upon the expression, returning a new expression object. Perform |
3 | javax.persistence.criteria.ParameterExpression) Perform a typecast upon the expression, returning a new expression object. Perform a typecast |
3 | javax.persistence.criteria.MapJoin: selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform a typecast upon the expression, returning a new expression object. Perform a typecast upon the expression, returning a new |
2 | Best practise loading big dataHello, currently we take some effort to improve the overall performance of our product. ObjectDB is the main data provider within our solution. In the past we often discovered performance problems ... them but we could not see some performance improvement or less memory consumption by doing |
2 | find(entityClass, primaryKey, lockMode, properties) and the entity has a version attribute, the persistence provider must perform optimistic version checks |
0 | javax.jdo.PersistenceManagerFactory is to be considered read-only. ReadOnly set to false specifies that no updates can be performed |
