What is the purpose of the @Transactional annotation in…

In Spring, the @Transactional annotation is used to mark methods or classes as transactional. Its purpose is to instruct the Spring framework to wrap these methods or classes in a transaction. When a method with the @Transactional annotation is called, Spring will automatically start a transaction before the method begins, and upon completion of the method, it will decide whether to commit or rollback the transaction based on the method’s execution result.

The @Transactional annotation can be applied at the method level or the class level. When applied at the class level, all public methods of that class will be included in transaction management. Using this annotation at the method level allows for finer control over transaction boundaries.

The @Transactional annotation can also specify the properties of the transaction, such as propagation behavior, isolation level, timeout, etc. These properties ensure that the boundaries and behavior of transactions are correctly managed between multiple transactional methods.

In conclusion, the purpose of the @Transactional annotation is to designate a method or class as one that requires transaction handling, with Spring framework responsible for managing the boundaries and behavior of the transactions.