About Transaction

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About ObjectDB Database

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard database management services (storage and retrieval, transactions, lock management, query processing
JDO Doc
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makeTransactional(pc)

to transactional boundaries. Transient instances normally do not observe transaction boundaries. This method makes transient instances sensitive to transaction completion. If an instance is modified in a transaction, and the transaction rolls back, the state of the instance is restored to the state
JDO Doc
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getObjectById(oid, validate)

it. If there is no transaction in progress, the returned instance will be hollow or persistent-nontransactional, at the choice of the implementation. If there is a transaction in progress, the returned instance ... is established to this instance, then the transaction in which the association was made will fail
JPA Doc
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javax.persistence.Query

query TransactionRequiredException - if there is no transaction QueryTimeoutException ... back PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled ... - if a lock mode has been set and there is no transaction PessimisticLockException - if pessimistic
JPA Doc
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javax.persistence.spi.PersistenceUnitInfo

to be used by the persistence provider for accessing data outside a JTA transaction. Returns the non ... transaction. The data source corresponds to the named non-jta-data-source element in the persistence.xml ... to be used by the persistence provider for accessing data outside a JTA transaction Since: JPA 1.0 String
JDO Doc
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currentTransaction()

Method javax.jdo.PersistenceManager Transaction currentTransaction() Return the Transaction instance associated with a PersistenceManager. There is one Transaction instance associated with each PersistenceManager instance. The Transaction instance supports options as well as transaction completion
JDO Doc
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flush()

to the data store. It has no effect if a transaction is not active. If a datastore transaction is active ... transaction is active, this method obtains a datastore connection, synchronizes the cache ... is held until the end of the transaction. If exceptions occur during flush, the implementation
JDO Doc
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isTransactional(pc)

whether this object is transactional. Instances that respect transaction boundaries return true. These instances include transient instances made transactional as a result of being the target ... in data store transactions; and persistent instances modified in optimistic transactions. Transient
JDO Doc
5

getDataStoreConnection()

while a datastore transaction is active, the object returned will be enlisted in the current transaction. If called in an optimistic transaction or outside an active transaction, the object returned will not be enlisted in any transaction. Returns: the JDOConnection instance Since: JDO 2.0
JPA Doc
5

javax.persistence.PersistenceContextType

: Serializable, Comparable Specifies whether a transaction-scoped or extended persistence context is to be used in PersistenceContext. If not specified, a transaction-scoped ... Extended persistence context Since: JPA 1.0 PersistenceContextType TRANSACTION Transaction-scoped