About activator

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Manual
14

Obtaining a JPA Database Connection

, update, and delete should only be performed within an active transaction. Given an EntityManager, em ... that the getTransaction method returns. When a transaction is active you can invoke EntityManager methods
JDO Doc
14

javax.jdo.JDOEntityManager

. This method has no effect if a transaction is not active. If a datastore transaction is active ... transaction is active, this method obtains a datastore connection and verifies the consistency ... store. This method must be called in an active transaction. The data store object will be removed
JDO Doc
13

javax.jdo.PersistenceManager

if a transaction is not active. If a datastore transaction is active, this method verifies ... if flush were called, but it is not required to do so. If an optimistic transaction is active ... the persistent instance from the data store. This method must be called in an active transaction
JDO Doc
11

javax.jdo.FetchPlan

javax.jdo Interface FetchPlan Fetch groups are activated using methods on this interface ... the fetch group to the set of active fetch groups. Add the fetch group to the set of active fetch groups ... all active groups leaving no active fetch group. Remove all active groups leaving no active fetch
JDO Doc
11

javax.jdo.Transaction

environment, or if the transaction is already active. Since: JDO 1.0 See Also: setOptimistic getOptimistic ... is not active. Since: JDO 1.0 String getIsolationLevel() Get the value for transaction isolation level ... getNontransactionalRead() If true, allows persistent instances to be read without a transaction active
JDO Doc
11

javax.jdo.PersistenceManagerFactory

addFetchGroups( FetchGroup... groups) Add the FetchGroups to the set of active fetch groups. Add the FetchGroups to the set of active fetch groups. FetchGroups are made unmodifiable before being added ... to see that all PersistenceManager instances obtained from this PersistenceManagerFactory have no active
JPA Doc
10

JPA Exceptions

, an attempt to update the database with no active transaction is represented by: Database update
Manual
10

JPA Lifecycle Events

throws an exception within an active transaction, the transaction is marked for rollback
Manual
10

JPA Persistable Types

the original classes and enable transparent activation and transparent persistence. For example
Result
10

ObjectDB License

days of the purchase date, provided that you haven't activated your license. Server License ObjectDB