Introduction to jOOQ
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This document introduces jOOQ, an alternative to ORM frameworks like JPA and Hibernate. It discusses some of the pros and cons of ORM frameworks, including that they hide SQL and make complex queries difficult. jOOQ is presented as a solution that allows type-safe SQL queries while avoiding some of the downsides of traditional JDBC usage. The document concludes by suggesting how jOOQ could be used alongside existing ORM frameworks and provides additional resources for learning more about jOOQ.
Introduction to jOOQ
- 1. INTRODUCTION TO JOOQ Kostadin Golev CTO @ Getti Loyalty tweeting@kotseto kgolev.com To ORM Or Not To ORM?
- 2. JOOQ USERS?
- 3. STATE OF JAVA PERSISTENCE (2015 SURVEY)
- 4. WHY USE X?
- 5. #1 - JPA / HIBERNATE - THE GOOD PARTS ➤ JAVA, не SQL ➤ Objects! ➤ Swap your database ➤ You do not have to write a lot of code ➤ Performance
- 6. #1 - JPA / HIBERNATE - THE BAD PARTS ➤ What is is this JOIN, UNION? ➤ SQL set != Objects ➤ Database specific features missing ➤ Complex SQL features - hard to use or missing ➤ Performance
- 7. THE ACCEPTED ALTERNATIVE - JDBC ➤ SQL ➤ Errors at runtime ➤ Map to objects - too much work ➤ Java is verbose enough as it is ➤ SQL manipulation = String manipulation
- 8. JAVA OBJECT ORIENTED QUERYING ➤ SQL ➤ Type-safe SQL ➤ Checks differences between db and Java code on every build ➤ Makes mapping to Objects easier ➤ Free for Open-source databases ➤ Mature
- 9. DEMO
- 10. HOW EASY IS TO SHOOT YOURSELF WITH IT? ➤ Comparable with JDBC performance ➤ With rare exceptions - thread-safe ➤ Use fetch lazy when fetching big sets of records / slow connection
- 11. NOW WHAT? ➤ JPA Projects - JPA for CRUD, jOOQ where SQL is needed ➤ JDBC Projects - full migration possible ➤ All - Migrate what you want. Type-safe SQL is a good first step! ➤ You do not have to use only one framework!
- 12. RESOURCES ➤ jooq.org ➤ http://kgolev.com/orm-not-orm-introduction-jooq/ ➤ https://github.com/kotse/jooq-starter THANK YOU!