spring boot

Mastering Spring Data & Persistence

Learn to handle data effectively with Spring Data JPA. Master Repositories, entity mapping, and transactions in Spring Boot 3.

Expected Outcome

The ability to build a stable data layer with correct entity mappings and functioning transaction management.

Target Audience

Backend developers wanting to practically implement and structure the data layer with Spring Data JPA.

Prerequisites

Experience with Spring Boot equivalent to 'Spring Boot Jumpstart: Essentials' is required to dive into persistence.

Curriculum & Highlights

→ Spring Data JPA Repositories

→ Entity Mapping (@Entity)

→ Transactional Logic (@Transactional)

→ Derived Query Methods

→ Relationships (@OneToMany / @ManyToOne)

→ Sorting & Pagination

→ JPQL & Custom Queries

→ Jakarta Persistence (JPA) Essentials

Challenges we address

"How do I map my classes to entities and create relationships smoothly?"

"How do I use Spring Data Repositories to quickly fetch and save data?"

"How does @Transactional work and how do I ensure my data operations are safe?"

Detailed Description

The data layer is the backbone of any application, but it's also where many complex errors can occur if you don't master the basics. Working with Spring Data JPA in 2026 is about letting the framework handle the heavy lifting while maintaining control over how information is saved and retrieved. In this workshop, we focus on practical work through Active Learning, building a data layer step by step. We cover how to map classes to database tables, create relationships, and use the power of the Spring Data Repository pattern. The goal is to give the team confidence in structuring their persistence logic in a way that is both readable and easy to maintain. We explore the management of entities by looking at how various annotations affect the database structure and how to create smooth relationships between them. We implement functional Repositories and learn to write custom queries when the built-in methods aren't enough. By using @Transactional, we ensure our operations are executed safely and data integrity is preserved throughout the application flow according to modern Jakarta Persistence standards. Actlea's core philosophy is that a well-structured data layer saves an enormous amount of time and frustration in the long run. Experience shows that once you understand how Spring Data JPA maps code to data, development speed increases significantly. This training provides the team with the foundation needed to build robust Spring Boot applications where data management is both predictable and stable.

Recommendation & Next Steps

Once you know how to handle data in the database, the next natural step is exposing it professionally in 'RESTful APIs with Spring Boot'. →

Format Workshop

Duration 1 day

Level Professional

Instructor Andreas Olsson

Price per group $2,900

Standard price per group (up to 12 participants) for remote delivery. Additional costs apply for onsite delivery.

Get Quote & Book Download Overview (PDF)

Tech Stack

JPA Spring Data Persistence SQL Spring Boot 3 Architecture

Your Instructor

Andreas Olsson

Expertise through Active Learning

Java and the Spring Framework have been my core focus for over 20 years. Today, my mission is primarily to help organizations step into the future by integrating intelligent agents and AI-driven features into modern Java systems.

Actlea stands for Active Learning – the philosophy that programming is best learned by writing code, not by watching slides. My workshops focus on intensive, hands-on exercises designed to solve real-world problems.

I deliver proven training concepts globally across all timezones. While I specialize in remote delivery, I love to travel for onsite workshops. My modules are ready for immediate impact but can be tailored to your team's specific requirements.

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Java • Spring Boot • Spring AI

Enterprise teams trained by Actlea

Participant Reviews

What past participants say

Read about the pedagogical approach, the hands-on labs, and the impact on daily work.

"I recently had the pleasure of being a student of Andreas and I cannot speak highly enough of his skill and professionalism. Throughout the training, Andreas demonstrated a deep understanding of Java programming and was able to convey complex concepts in a way that was easy to understand. His ability to break down difficult topics and explain them in a clear and concise manner was truly remarkable. Overall, I would highly recommend Andreas as a teacher of Java programming. His skill and professionalism make him an exceptional educator, and I am grateful to have had the opportunity to learn from him. If you are looking for a teacher who is knowledgeable, patient and passionate about teaching, Andreas is the perfect choice."

"Andreas is a fantastic teacher! In addition to the fact that I experienced him as competent with a solid knowledge of his subjects, he really excels as an educator. Regardless of who you are or what level of knowledge you are at, Andreas always responds to one's questions with commitment, curiosity and a positive attitude that is contagious. Above all, I appreciated that he both gave me space to explore solutions myself and think creatively, while he was always there to contribute his support. I highly recommend Andreas!"

"Andreas is incredibly committed and very flexible. He could rewrite his examples to answer any questions and concerns and he managed to break down complex stuff into small manageable tasks. I am also incredibly impressed with his positive energy that he managed to keep up throughout the days."

"My name is Rabia and I participated in the Java Developer course with Andreas starting January 2022 after 20 years in the banking and finance industry. Previously had no experience whatsoever in the IT world, but chose the track with the digitization the world is going through. The course was incredibly broad & intensive and gave a good overview. When the course was over, I was hired by Capgemini as a junior developer. During the course I probably complained many times about how much information it presented, but I have benefited greatly from everything I have been taught. I continue to learn every day but have an understanding that still amazes me when I realize how much I brought with me. Thanks Andreas for everything! The course has given me the opportunity to pursue a new career in a new industry that I love. The change has given me new energy and opened up new doors. I am so grateful!"

"Andreas is a knowledgeable and pragmatic teacher who with a good mood shares knowledge that feels relevant to working life with a high level of competence."

"Andreas is the name of competence, skill and reliability. He is no doubt a guru in the field of Java. His style of teaching is practical, well structured and effortless; I learned Java by doing it because of his well organized assignments.I felt connected, confident and comfortable with Andreas during the whole course because he listens, replies and helps each and every student in a very productive and professional way"

"Andreas is an excellent teacher who shows great competence in system development with Java and has developed an effective and engaging curriculum. He is an experienced system developer with broad knowledge of the Java ecosystem and he provides valuable feedback that helps students grow and develop as programmers. Andreas also encourages independent and creative thinking for students. I highly recommend Andreas to anyone looking for a high-quality education in Java development."

"In all my years at school, I have never met a teacher who treated his students with as much patience and joy as Andreas did. His commitment to us felt very genuine, and it was clear that he was the right person in the right place. I am very glad we had him as a teacher during our 12 weeks at Brights."

"I learned a lot on Andreas course! He is helpful and educational and I appreciated how he could easily point me in the right direction on projects when I got stuck, without giving the whole "answer". It did a lot for my problem solving skills and I got better at debugging the code during the course. I also appreciated that he was always positive and supportive in learning! Thanks Andreas!"

"It has been a great experience to have Andreas as my Java teacher. He has shown an extraordinary teaching ability by explaining the concepts in a simple and clear way that made it easy for me to understand. His patience and consideration have helped me overcome difficulties in the learning process and feel comfortable asking questions. He is always motivating and encourages me to strive to reach my full potential. I am grateful for his dedication to my education and highly recommend him to other students who want to learn Java."

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