JPA 스터디 Week2 - Object Relational Mapping
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This document discusses Object-Relational Mapping (ORM) and JPA. It begins with an introduction to the author and their background and credentials. It then poses some questions about ORM and defines it as mapping between object-oriented programming languages and relational databases. It discusses some of the challenges with ORM including differences in granularity, inheritance, identity, associations, and data navigation between objects and relational databases. It also covers ORM patterns like Active Record and Data Mapper and compares JPA, Hibernate, and Spring Data JPA. Finally, it provides a case study example of applying ORM and architectural patterns to an online ordering system.
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JPA 스터디 Week2 - Object Relational Mapping
- 1. JPA Covenant Ko Chapter 2 Object Relational Mapping JPA
- 2. - Name. Covenant Ko - Company. 11번가 - Github 용감한친구들 Organization Founder & Maintainer. https://github.com/brave-people - Github. https://github.com/KoEonYack - Tech Blog. https://covenant.tistory.com/ (누적 방문 41만)
- 5. ORM ? . , . Thomas Samuel Kuhn
- 9. ? Mapping Logic Object Object Object Object Object Object Object Object Database 1. How?
- 13. Review Hibernate JPA . JPA Hibernate DataNucleus, EclipseLink JPA JPA https://suhwan.dev/2019/02/24/jpa-vs-hibernate-vs-spring-data-jpa/
- 14. Review Hibernate JPA . JPA Hibernate DataNucleus, EclipseLink JPA JPA https://www.programmersought.com/article/66403889716/
- 15. Review 1. JPA . JPA Repository 2. Repository , Spring Bean https://suhwan.dev/2019/02/24/jpa-vs-hibernate-vs-spring-data-jpa/
- 16. Review
- 19. The Object Relational Impedance Mismatch 1. Granularity 2. Subtypes(Inheritance) 3. Identity 4. Association 5. Data navigation http://hibernate.org/orm/what-is-an-orm/
- 20. The Object Relational Impedance Mismatch 1. Granularity 2. Subtypes(Inheritance) 3. Identity 4. Association 5. Data navigation http://hibernate.org/orm/what-is-an-orm/
- 21. The Object Relational Impedance Mismatch 1. Granularity 2. Subtypes(Inheritance) 3. Identity 4. Association 5. Data navigation http://hibernate.org/orm/what-is-an-orm/ 1. 2. RDBMS . 3. ( )
- 22. The Object Relational Impedance Mismatch 1. Granularity 2. Subtypes(Inheritance) 3. Identity 4. Association 5. Data navigation http://hibernate.org/orm/what-is-an-orm/ 1. RDBMS Primary Key 2. Java a == b, a.equals(b)
- 23. The Object Relational Impedance Mismatch 1. Granularity 2. Subtypes(Inheritance) 3. Identity 4. Association 5. Data navigation http://hibernate.org/orm/what-is-an-orm/ 1. Java . 2. RDMSB
- 24. The Object Relational Impedance Mismatch 1. Granularity 2. Subtypes(Inheritance) 3. Identity 4. Association 5. Data navigation http://hibernate.org/orm/what-is-an-orm/ 1. Java member.getCoupon() 2. RDMSB Join
- 25. The Object Relational Impedance Mismatch Subtypes(Inheritance) ‒ : https://martinfowler.com/eaaCatalog/singleTableInheritance.html
- 26. The Object Relational Impedance Mismatch Subtypes(Inheritance) ‒ : https://martinfowler.com/eaaCatalog/concreteTableInheritance.html
- 27. The Object Relational Impedance Mismatch Subtypes(Inheritance) ‒ : https://martinfowler.com/eaaCatalog/classTableInheritance.html
- 28. http://blog.ant-holdings.com/2013/10/16/software-architect-courses-part-4-5/ Datasource Architecture Pattern 도메인 객체와 데이터베이스가 연결되는 방법을 결정 1. Table Gateway (Table mapping per one instance) 2. Raw Data Gateway (Record mapping per one instance) 3. Active Record (Table mapping and domain instance a class) 4. Data Mapper (OR mapping layer)
- 29. http://blog.ant-holdings.com/2013/10/16/software-architect-courses-part-4-5/ Datasource Architecture Pattern 도메인 객체와 데이터베이스가 연결되는 방법을 결정 1. Table Gateway (Table mapping per one instance) 2. Row Data Gateway (Record mapping per one instance) 3. Active Record (Table mapping and domain instance a class) 4. Data Mapper (OR mapping layer)
- 30. ActiveRecord Pattern 1. 2. Rails, Django 3. An object that wraps a row in a database table or view, encapsulates the database access, and adds domain logic on that data. https://martinfowler.com/eaaCatalog/activeRecord.html
- 32. DataMapper Pattern https://martinfowler.com/eaaCatalog/dataMapper.html 1. Domain Mapper . DB Domain . 2. . 3. Hibernate 4. A layer of Mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself.
- 34. ActiveRecord Pattern 1. , , 2. , . 3. , , . , Foreign key , 4. Active Record , CRUD ( ) 5.
- 35. DataMapper Pattern 1. , DB , 2. ORM , , (ex. JPA) ORM ? 3. , .
- 44. Case Study Service Controller Service Entity Repository Web Domain Persistence 일반 주문 선물하기 주문조회 API
- 45. Case Study Service Controller Service Entity Repository Web Domain Persistence 일반 주문 선물하기 해외 배송 주문조회 API
- 46. Case Study Service Controller Service Entity Repository Web Domain Persistence 일반 주문 선물하기 해외 배송 주문조회 API
- 47. Case Study Controller Service Entity Repository Web Domain Persistence 일반 주문 선물하기 해외 배송 주문조회 API
- 48. Case Study Wayfarer Architecture Controller Service Entity Repository Web Domain Persistence 주문조회 API 1 Service Service Controller Controller 주문조회 API 2
- 49. Case Study (SRP ) OrderController Entity Repository Web Domain Persistence Order API OrderService MemberService MemberController Member API
- 50. Case Study (SRP ) OrderController Entity Repository Web Domain Persistence Order API MemberController Member API OrderService MemberService Entity Repository Persistence
- 51. https://www.hanbit.co.kr/media/community/review_view.html?hbr_idx=8675&page=39 Software Architecture . Self Discipline
- 53. JPA Covenant Chapter 2 O/R Mapping JPA