How Propagation Works in Spring Boot Transactions? | @Transactional Deep Dive

Опубликовано: 20 Февраль 2026
на канале: The Curious Coder

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Java Spring Boot Interview Q17 !!

This is Part 2 of our Spring Boot Transaction Management series.
In this video, we explore Transaction Propagation in detail — a critical feature of Spring’s @Transactional annotation that controls how transactions behave across multiple method calls.

📌 What You’ll Learn:

1) What is transaction propagation in Spring Boot?
2) The role of @Transactional in managing propagation behaviour
3) Detailed explanation and use cases of:
Propagation.REQUIRED
Propagation.REQUIRES_NEW
Propagation.MANDATORY
Propagation.NEVER
Propagation.SUPPORTS
Propagation.NOT_SUPPORTED
4) How propagation levels affect transaction commit, rollback, and recovery
5) How Spring Boot transaction propagation aligns with ACID properties
6) Best practices for choosing the right propagation level in real-world applications

This video is ideal for backend developers, Java learners, and anyone preparing for Spring Boot interviews. It builds a solid understanding of transaction management, propagation levels, and how Spring Boot handles complex transaction flows.

00:00 : Introduction
00:32 : Code Walkthrough
04:21 : Propagations Theory
07:34 : Propagation.REQUIRED
09:02 : Propagation.REQUIRES_NEW
10:35 : Propagation.MANDATORY
12:11 : Propagation.NEVER
14:13 : Propagation.SUPPORTS
16:27 : Propagation.NOT_SUPPORTED
18:00 : Propagation.NOT_SUPPORTED VS Propagation.REQUIRES_NEW
19:19 : Propagation Comparison Chart
19:37 : RollBack Mechanism in various Propagations
25:44 : Interview Tip of the Day !!

@Transactional Annotation Explained :
   • What's Behind @Transactional in Spring Boo...

Spring Boot Basics To Know:

Spring Boot and Java Setup
   • Spring Boot and Java Setup

Project Object Model File | Understanding pom.xml
   • Project Object Model File | Understanding ...

How to create an API ?
   • How to create an API ?

How to Connect Spring Boot to a Database ?
   • How to Connect Spring Boot to a Database ?

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