 3 | . Recording is enabled by default and can be disabled in the configuration. The ObjectDB Replayer tool ... is useful for two different purposes: It enables recovery from a database failure by replaying the recorded operations. It enables reproducing problems during debugging by repeating a failure. Backup |
3 | , if an ObjectDB database is accessed directly only by a web application, it should be embedded in ... . This can be overridden by specifying a configuration path explicitly on the command line:
> java com.objectdb ... is also specified in the Server Configuration, but can be overridden by an explicit command line |
3 | Metamodel API is Metamodel. It can be obtained either by the EntityManagerFactory's getMetamodel method or by the EntityManager's getMetamodel method (both methods are equivalent). For example, given an EntityManager, em, a Metamodel instance can be obtained by:
Metamodel metamodel = em.getMetamodel |
3 | We start by installing the BIRT development environment and the ObjectDB data source driver ... for Java EE Developers. Update your existing Eclipse IDE for Java EE Developers environment by ... Eclipse IDE for Java EE Developers environment: Open the [Install] dialog box by selecting Help |
3 | and matches them against the declared parameters in order. The names of the declared parameters are ignored ... , declared parameters, declared variables, and ordering statements are verified for consistency. Each ... of the query. It is then evaluated by the Boolean expression of the filter. The element passes |
2 | Upgrade - Step By Step To upgrade an existing application that uses ObjectDB 1.0 to ObjectDB 2.0 ... . ObjectDB 2.0 uses optimistic transactions by default (the default was datastore transactions in ... as in ObjectDB 1.0), either by annotation (@Embeddable) or by external XML metadata ( |
2 | An ObjectDB database can be backed up by simply copying or archiving the database file while the database is offline (i.e. when it is not open in an ObjectDB server and not in use by any application ... applications. Starting Online Backup The online backup can be started by executing a special query |
2 | can manage non enhanced classes by using reflection at the cost of performance. The possible values ... ", "soft" and "strong". Modified entities are always held by strong references in the persistence ... of the shared level 2 cache that is managed by the EntityManagerFactory and shared by |
2 | for data that exceeds a limit size that is specified by the threshold attribute. The mb and kb suffixes ... for ObjectDB to avoid using sockets that are expired by the firewall. The element
by the Explorer. The size attribute specifies the maximum size of this list |
2 | ",
query="select g from guest.Guest g order by g.name"
) } )
@Stateless
@TransactionManagement ... );
TypedQuery query = this.em.createQuery( "select g from guest.Guest g order by g.name ... ="select g from guest.Guest g order by g.name"
) } ) ...
// NamedQuery does not work
// TypedQuery |
