An Introduction to jOOQ
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Are you tired of Hibernate? Is GORM is too heavy for your current project? Do you like having more control over your SQL? Do you like flexible DSLs? Try JOOQ! JOOQ (Java Object Oriented Querying) is light-weight alternative to classic data access solutions or ORMs like Hibernate, JPA, JDBC, and GORM. JOOQ's goal is to give the developer a flexible DSL for building typesafe, database agnostic SQL queries, and attempts to convince the developer of a ‘database-first’ approach to building their application. In this talk we’ll quickly present an introduction to JOOQ from a high level, discuss its features, and see several examples of how we’re using JOOQ to great effect with many Spring Boot and Ratpack apps within our platform.
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An Introduction to jOOQ
- 1. An Introduction to JOOQ (or, Long Live SQL) Steve Pember @svpember Gr8Conf US, 2016 THIRDCHANNEL @svpember
- 2. You may find this to be terribly boring.
- 4. THIRDCHANNEL @svpember Agenda • Growing beyond Object Relational Mappers • An Introduction to jOOQ • What We’ve Learned (A.K.A. jOOQ and Groovy) • Demo / Code Samples
- 7. This debate is not new.
- 9. ORMs Can Save You Time…
- 10. JPA, anyone?
- 12. … but they have flaws.
- 13. THIRDCHANNEL @svpember ORM Difficulties • Object / Relational Impedance Mismatch
- 14. Objects: identity, state, behavior RDBMS: attribute storage, retrieved by predicate logic
- 16. THIRDCHANNEL @svpember ORM Difficulties • Object / Relational Impedance Mismatch • ORM Oriented Schema Design
- 20. Wonderful.
- 21. Single Table vs Multi Table Inheritance
- 22. THIRDCHANNEL @svpember ORM Difficulties • Object / Relational Impedance Mismatch • ORM Oriented Schema Design • Trouble with Complicated Queries
- 23. E.G. Criteria, HQL , @Query, etc.
- 25. THIRDCHANNEL @svpember ORM Difficulties • Object / Relational Impedance Mismatch • ORM Oriented Schema Design • Trouble with Complicated Queries • Resource Usage
- 26. Maintain That Entity Graph
- 27. THIRDCHANNEL @svpember ORM Difficulties • Object / Relational Impedance Mismatch • ORM Oriented Schema Design • Trouble with Complicated Queries • Resource Usage • Performance
- 29. To Re-phrase My Original Point:
- 33. THIRDCHANNEL @svpember So What To Do?
- 34. How about some raw JDBC?!
- 35. Problems?
- 36. THIRDCHANNEL @svpember What Was Wrong?
- 38. Enter: jOOQ!
- 39. THIRDCHANNEL @svpember Agenda • Growing beyond Object Relational Mappers • An Introduction to jOOQ
- 40. THIRDCHANNEL @svpember jOOQ (Intro) • Library for SQL interaction
- 41. THIRDCHANNEL @svpember jOOQ (Intro) • Library for SQL interaction • For people not afraid of SQL
- 42. THIRDCHANNEL @svpember jOOQ (Intro) • Library for SQL interaction • For people not afraid of SQL • The jOOQ authors LOVE SQL
- 44. And they are eager to help
- 45. THIRDCHANNEL @svpember jOOQ (Intro) • Library for SQL interaction • For people not afraid of SQL • The jOOQ authors LOVE SQL • Database should drive internal models
- 46. jOOQ Features
- 47. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL
- 49. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL • Fluent API
- 51. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL • Fluent API • Code Generation
- 53. –Johnny Appleseed “Type a quote here.”
- 54. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL • Fluent API • Code Generation • Active Record
- 56. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL • Fluent API • Code Generation • Active Record • Full SQL Support
- 58. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL • Fluent API • Code Generation • Active Record • Full SQL Support • Native Support of Stored Procedures
- 59. THIRDCHANNEL @svpember jOOQ (Features) • Type-Safe SQL • Fluent API • Code Generation • Active Record • Full SQL Support • Native Support of Stored Procedures • Open Source and Free
- 60. Unless You’re Using Oracle…
- 63. Don’t want to take up too much of your time…
- 64. But let’s talk about Fetching
- 68. THIRDCHANNEL @svpember Fetch • fetchOne • fetchAny
- 70. THIRDCHANNEL @svpember Fetch • fetchOne • fetchAny • fetchLazy
- 72. THIRDCHANNEL @svpember Fetch • fetchOne • fetchAny • fetchLazy • fetchLater
- 73. fetchLater -> returns a Promise… but is gone in 4.0
- 74. THIRDCHANNEL @svpember Fetch • fetchOne • fetchAny • fetchLazy • fetchLater • fetchMany
- 75. fetchMany() -> you have stored procedures with multiple result sets
- 76. THIRDCHANNEL @svpember Fetch • fetchOne • fetchAny • fetchLazy • fetchLater • fetchMany • fetchInto
- 77. fetchInto() is quite flexible
- 78. Fetch into Records! Fetch into POGOs!
- 79. Fetching into POGOs keeps layers separate
- 82. –Johnny Appleseed “Type a quote here.”
- 83. And with Java 8…
- 85. THIRDCHANNEL @svpember Agenda • Growing beyond Object Relational Mappers • An Introduction to jOOQ • What We’ve Learned (A.K.A. jOOQ and Groovy)
- 86. THIRDCHANNEL @svpember What We’ve Learned • Code Generation is Not Mandatory
- 88. THIRDCHANNEL @svpember What We’ve Learned • Code Generation is Not Mandatory • jOOQ Does Not Manage Transactions For You!
- 89. THIRDCHANNEL @svpember What We’ve Learned • Code Generation is Not Mandatory • jOOQ Does Not Manage Transactions For You! • Import / Export Direct to CSV
- 90. THIRDCHANNEL @svpember What We’ve Learned • Code Generation is Not Mandatory • jOOQ Does Not Manage Transactions For You! • Import / Export Direct to CSV • Easy & Clear Logging
- 92. THIRDCHANNEL @svpember What We’ve Learned • Code Generation is Not Mandatory • jOOQ Does Not Manage Transactions For You! • Import / Export Direct to CSV • Easy & Clear Logging • Binders / Casting
- 93. –Johnny Appleseed “Type a quote here.”
- 96. THIRDCHANNEL @svpember What We’ve Learned • Code Generation is Not Mandatory • jOOQ Does Not Manage Transactions For You! • Import / Export Direct to CSV • Easy & Clear Logging • Binders / Casting • jOOQ & CompileStatic
- 98. THIRDCHANNEL @svpember Agenda • Growing beyond Object Relational Mappers • An Introduction to jOOQ • What We’ve Learned (A.K.A. jOOQ and Groovy) • Demo / Code Samples
- 99. Thank You! Steve Pember @svpember THIRDCHANNEL @svpember
- 100. THIRDCHANNEL @svpember More Info • jOOQ Blog: https://blog.jooq.org/ • Vietnam of Computer Science: http://blogs.tedneward.com/post/the-vietnam-of-computer-science/ • Fluent API: http://martinfowler.com/bliki/FluentInterface.html • jOOQ Gradle Plugin: https://github.com/etiennestuder/gradle-jooq-plugin • Code Demo: https://github.com/spember/jooq-demo
- 101. THIRDCHANNEL @svpember Images • Brave Puffin: https://memegenerator.net/instance/63187852 • Weak(Gravity Falls): http://giphy.com/gifs/weak-gravity-falls-sTm3FmD7knvO0 • Strong (Spongebob): http://www.reactiongifs.com/strongbob/?utm_source=rss&utm_medium=rss&utm_campaign=strongbob • Andy Dwyer (No Idea): http://memecaptain.com/gend_image_pages/iepvqA • Atticus Finch: http://www.latimes.com/entertainment/movies/la-et-mn-atticus-white-savior-20150715-story.html • Yikes (Adam Scott): http://giphy.com/gifs/awkward-yikes-adam-scott-srFijDgoNj008 • Suspicious Fry: http://imgur.com/gallery/OCcno • Strong (Spongebob): http://www.reactiongifs.com/strongbob/?utm_source=rss&utm_medium=rss&utm_campaign=strongbob