[Studies] Spring Transaction

트랜잭션(Transaction)

• Managing multiple DML (Data Manipulation Language) statements as a single logical unit of work.
• Ensures consistency of work by processing using an "All or Nothing" approach.
• In web applications, each method in the Service class performs a unit of functionality for the application.

Examples of Functionality Bundled for Processing in Web Applications

• When viewing a post in a bulletin board, the functionality to retrieve the post and update the view count.
• When placing an order in an online store, the functionality to register the ordered item and update the buyer's points.
• When performing a fund transfer in a bank, the functionality to update the sender's and receiver's balances.

Before Applying Transactions: Bank Account Transfer

• Ex. If both Hong Gil-dong and Kim Yu-shin's account balances are updated successfully, the changes are finally committed.
• If any issue arises in between, all previous operations are rolled back.

Various Transaction Attributes in Spring

Possible Values for the propagation Attribute

Possible Values for the isolation Attribute