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Explain Hibernate Transaction Interface

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In the Hibernate framework, we have a Transaction interface that defines the unit of work. It maintains abstraction from the transaction implementation (JTA, JDBC).

A transaction is associated with a Session and instantiated by calling session.beginTransaction().

The methods of Transaction interface are as follows:

void begin() - starts a new transaction.

void commit()  - ends the unit of work unless we are in FlushMode.NEVER.

void rollback()  - forces this transaction to rollback.

void setTimeout(int seconds) - it sets a transaction timeout for any transaction started by a subsequent call to begin on this instance.

boolean isAlive()  - checks if the transaction is still alive.

void registerSynchronization(Synchronization s)  - registers a user synchronization callback for this transaction.

boolean wasCommited()  - checks if the transaction is committed successfully.

boolean wasRolledBack() - checks if the transaction is rolled back successfully.

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