Data Access with Sping Data

This presentation outlines good practices for Data Access with Spring Data. In short, your data access should be boring so that exciting things can happen somewhere else so that you don't exhaust your complexity budget with unnecessarily complex arrangements just to access your persistent data.

Locality is a good guidance to keep things together that belong together.

Transcript

1. Mark Paluch @mp911de mastodon.social/@mp911de Modern Data Access with Spring Data Copyright © 2005-2024 Broadcom, Inc. or its affiliates. Tweet by James Smith from NounProject.com Mastodon by Icon 54 from iconscout.com
2. Mark Paluch @mp911de mastodon.social/@mp911de Modern Data Access with Spring Data Copyright © 2005-2024 Broadcom, Inc. or its affiliates. Tweet by James Smith from NounProject.com Mastodon by Icon 54 from iconscout.com Boring
4. Spring Data Basics Fluent Queries Scrolling Persistence Creators Configuration Agenda
5. Spring Data Basics
6. As little as possible 🙌 🤩
7. Episode 1 Fluent Interface
8. Fluent Interface
9. 141 public methods 🙀 🫣 🤯 😵💫
10. Fluent Interface 🤩
11. Fluent Interface • Guided through operations 🧑✈ • Reusable query stubs ♻ • Template and Repositories • Query by Example, Querydsl, JPA Specifications • JPA, MongoDB, Cassandra, Neo4j
12. Episode 2 Scrolling
13. Scrolling • Abstraction to scroll 📜 large Chunks of data • Not a Page 📄 • Designed to cater various technologies • Offset-based scrolling 🔢 • Keyset scrolling 🗂 • Vendor-specific (e.g. Cassandra PagingState) 👩💻
14. Scrolling • Window 🪟 • Abstraction over a window of data • Associated with a position (scroll pointer) • scroll 📜 • Method to scroll over windows of Data • WindowIterator 🧰 • Utility to iterate over windows
15. Episode 3 @PersistenceCreator
16. Persistence Creators • Everything started with Constructors • @PersistenceConstructor ♻ • Spring Data ❤ private Constructors • @PersistenceCreator can be • Constructors 👷 • Factory Methods 🏭
17. Episode 4 Configuration
18. Leveraging ConfigurationProperties • "…" - String Literal • #{…} - SpEL • Extension through EvaluationContextExtension • ${…} - Property Placeholder 🆕 • people_#{foo.bar()}_${myApp.tenant} • Value Expression (as in @Value)
19. Questions Thank you github.com/mp911de/modern-spring-data @mp911de mastodon.social/@mp911de Copyright © 2005-2024 Broadcom, Inc. or its affiliates. Question by Mani Cheng from NounProject.com Tweet by James Smith from NounProject.com Mastodon by Icon 54 from iconscout.com