Spring Transaction Attributes

ACID

Atomicity : 

Consistency :  Data is in a consistent state when a transaction starts and when it ends.

•  A transaction either creates a new/modified and valid state of data, or, if any failure occurs during transaction then returns all data to its state before the transaction was started.
• The word consistency means that the value should remain preserved always. In DATABASE, the integrity of the data should be maintained, which means if a change in the database is made, it should remain preserved always.
• Database changes made by a transaction are invisible to other users until the transaction is committed. In a multi-user environment, where more than one transaction is open concurrently, this behavior maintains database consistency.

Isolation : 

Durability : 

 Question:- What are transaction attributes?

Propagation

1. PROPAGATION_REQUIRED
2. PROPAGATION_SUPPORTS
3. PROPAGATION_MANDATORY
4. PROPAGATION_REQUIRES_NEW
5. PROPAGATION_NOT_SUPPORTED
6. PROPAGATION_NEVER
7. PROPAGATION_NESTED

Isolation

• Dirty Reads
• Non Repeatable Reads
• Phantom Reads

The below isolation levels are supported by spring.

1. ISOLATION_DEFAULT
2. ISOLATION_READ_UNCOMMITTED
3. ISOLATION_READ_COMMITTED
4. ISOLATION_REPEATABLE_READ
5. ISOLATION_SERIALIZABLE

Read Only

Timeout

Rollback Rules