4 | javax.persistence.EntityManager provider object for the EntityManager, if available. Return the underlying provider object for the EntityManager, if available. The result of this method is implementation specific. The unwrap method ... when getReference is called.) The application should not expect that the instance state will be available |
3 | getPersistenceProviders()Method javax.persistence.spi.PersistenceProviderResolver List<PersistenceProvider> getPersistenceProviders() Returns a list of the PersistenceProvider implementations available in the runtime environment. Returns: list of the persistence providers available in the environment Since: JPA 2.0 |
2 | getReference(entityClass, primaryKey).) The application should not expect that the instance state will be available upon detachment |
2 | javax.persistence.Persistencejavax.persistence Class Persistence java.lang.Object javax.persistence.Persistence Bootstrap class that is used to obtain an EntityManagerFactory in Java SE environments. The Persistence class is available in a Java EE container environment as well; however, support for the Java SE |
2 | java.lang.Throwable available only in text form, via the various forms of the printStackTrace() method. This information |
0 | setTransactionIsolationLevel(level) javax.jdo.Constants. If the requested level is not available, but a higher level is available, the higher level is silently used. If the requested level is not available, and no higher level is available, then JDOUnsupportedOptionException is thrown. Standard values in order from low to high are: read |
0 | javax.jdo.Transaction.Constants. If the requested level is not available, but a higher level is available, the higher level is silently used. If the requested level is not available, and no higher level is available |
0 | setIsolationLevel(level). If the requested level is not available, but a higher level is available, the higher level is silently used. If the requested level is not available, and no higher level is available |
0 | current()Method javax.jdo.datastore.Sequence Object current() Returns the current sequence value object if it is available. It is intended to return a sequence value object previously used. If the current sequence value is not available, throw JDODataStoreException. Returns: the current value Since: JDO 2.0 |
0 | close()Method javax.jdo.PersistenceManager void close() Close this PersistenceManager so that no further requests may be made on it. A PersistenceManager instance can be used only until it is closed. Closing a PersistenceManager might release it to the pool of available PersistenceManagers, or |
