What are the functions of transactions in Java?
In Java, the functionalities of transactions include:
- Atomicity: All operations within a transaction must either all be successfully completed or all be rolled back to the state they were in before the transaction began.
- Consistency: During transaction execution, the database’s state transitions from one consistent state to another consistent state.
- Isolation: Transactions that are executed concurrently should be isolated from each other and one transaction’s execution should not be interfered with by other transactions.
- Persistence: Once a transaction is committed, the modifications made will be permanently saved in the database, even in the event of a system failure.
You can implement transaction functionality in Java using the transaction management mechanism.
- Utilizing a transaction manager for relational databases (such as JDBC transaction management) in Java allows for managing transactions through the Connection object. This involves manipulating the auto-commit attribute of the Connection object to control the execution of transactions.
- The transaction manager in Java persistence frameworks like Hibernate and MyBatis allows for the management of transactions through provided APIs.
- Managing transactions using Java containers: Java containers (such as Spring) offer transaction management capabilities that allow for managing and controlling transactions through configuring transaction managers and properties.
The above are some common features of transactions in Java, which may require different implementation methods and specific functional requirements in different application scenarios.
