Transactional management is a critical component of any robust application. It ensures the atomicity, consistency, isolation, and durability (ACID) of operations within a system. Java Spring Framework simplifies transactional management with its robust @Transactional annotation and other utilities. In this blog, we’ll cover an end-to-end overview of Spring’s transactional functionality with a practical example.
What Is a Transaction?
A transaction is a series of operations that are performed as a single logical unit. In simple terms, if one operation fails, the entire sequence is rolled back, leaving the system in its previous stable state.
Why Transaction Management Is Important
Ensures data consistency in databases.
Prevents partial updates during failures.
Supports recovery from errors while maintaining system integrity.
How Transactions Work in Spring
Spring uses the PlatformTransactionManager to coordinate transactions with the underlying persistence provider (e.g., JPA, JDBC). Spring offers annotations like @Transactional to manage transactions declaratively, meaning you don’t need to write boilerplate code for transaction management.
Transactional Settings in Spring
Key properties of the @Transactional annotation:
Propagation: Defines how transactions relate to each other.
REQUIRED (default): Joins an existing transaction or creates a new one if none exists.
REQUIRES_NEW: Creates a new transaction, suspending the existing one.
Isolation: Sets the level of isolation between transactions.
- Examples: READ_COMMITTED, SERIALIZABLE.
Timeout: The maximum time (in seconds) a transaction can run.
Rollback Rules: Specifies conditions under which a rollback is triggered (e.g., specific exceptions).
Check Out the Full Example
Medium
Top comments (0)