Java JPA
- 2. JPA(Java Persistence API) JPA? 蟯螻 一危磯伎れ 蠏狩蠍 譴 ORM(Object-relational Mapping) 蠍一 螻牛 蠍一ヾ EJB 蠍一 豌危 蠍一.
- 3. History (EJB->Hibernate->JPA) JPA : ORM(Object-relational Mapping) 蠍一 譴, EJB 3.0 企れ危 蠍磯朱 襷れ伎. JPA 1.0(2006) : 豐蠍磯 JPA 2.0(2009) : 覿覿 ORM 蠍磯. JPA Criteria豢螳 JPA 2.1 (2013) : ろ企 襦 蠏 螳, 貉覯, 壱 蠏碁 蠍磯 豢螳
- 5. DB modeling VS Object modeling 覈碁 れ 企 : DB => Object
- 6. Build application based on DB modeling 企覲企 襷 螳豌 煙 蟲. RDBMS 螳豌伎リ骸 蟇磯Μ螳 覃. JAVA 螳豌伎 谿語＾襯 覦覃 RDBMS foreign key襯 谿語＾. 螳豌伎 蠏殊 JAVA RDBMS螳 谿願 . 企 蟲譟 覲蟆曙 application 殊癌
- 7. IBATIS VS JPA Alter table(add column) 殊企 蟆曙 1. Ibatis : Sql mapper , domain class, business class set 豌襴 (if れ 貎朱Μ 覃 企り 譟伎る?) 2. JPA : 覃 , 觜讀 襦讌 ! ?
- 8. WHY JPA? 覦覲旧 CRUD襯 譴願 螳豌伎 り 襦讌 讌譴. 覦覲旧 DB 譟壱 螳豌 蠏碁螳 螳. DBMS Vendor 蟯螻 螳 (螳覦蟆 : H2, 讌覲伎 蟆 : Mysql, ろ蟆 : oracle) 豐蠍 螳覦 觜襯願 讌覲伎螳 麹 . Junit 覯螳 伎.
- 9. WHY JPA? 糾 豌襴覲企る れ螳 豌襴 貎朱Μ 豕. 糾 豌襴 蟆曙 れ危磯 SQL襯 轟 IBATIS 襯 殊 一危 蠏 豢 DBMS 覦企 襴曙 : vendor 襷 dialect => 伎 覦, ろ碁 , 讌
- 10. Life cycle of Persistence Context
- 11. Entity Manager Entity Manager Factory : entity manager襯 Entity manager : request or session persistence 蟯襴. (persist, find, flush) Entity Transaction : commit persistence area 伎 覦
- 12. Entity Manager Architecture DBMS persist Entity_1 Entity_1 Cache SQL repository Store entity Generate SQL
- 13. Entity Manager EntityManagerFactory factory = Persistence.createEntityManagerFactory(Members); em = factory.createEntityManager(); Member mem = new Member(); mem.setUserName(coder); mem.setAge(33); Member selectedMember = em.find(Member.class, id);
- 14. Entity @Entity public class User{ @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @Column(name = "name", nullable = false) private String name; @Column(name = "age", nullable = false) private Integer age; @Enumerated(EnumType.STRING) private ActiveType activeType; @ManyToOne(fetch=FetchType.LAZY,cascade=CascadeType.ALL) @JoinColumn(name="DEPT_ID) private Dept dept;
- 15. JPQL 螳豌伎 貎朱Μ => 螳豌企ゼ 譟壱 SQL 豢覩襦 轟 一危 覯伎れ 譬伎 . Ex) Query query = em.createQuery(SELECT m.name, m.age from Member m);
- 16. Criteria API JPQL type-safe 覓語願屋 伎 螻牛 API. Ex) CriteriaQuery<Member> cq = cb.createQuery(Member.class) cq.from(Member.class).select(m);
- 17. Native Query JPQL 蟇一 覈 SQL 讌讌覃 轟 DBMS JPQL 貉る螳 覿螳 磯殊 企 DBMS れ危磯 query 豌襴襦 . Ex) Query query = em.createNativeQuery(SELECT m.name, m.age from Member m);
- 20. Web project template Based on Spring Boot Based on Vaadin + spring data JPA Web project framework Test Driven Development(JUnit)
- 21. Next Seminar (two per month) Vaadin + Spring data JPA Rabbit MQ Google Polymer