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Spring data jpa

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Taesin Um
Taesin Um

Spring data jpa

Technology
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Spring Data JPA + Hibernate + QueryDSL
ORM ์„ ์‚ฌ์šฉํ•˜๋Š”๋ฐ ์‰ฌ์šด ๋ฐฉ๋ฒ•์„ ์ œ๊ณต ์ฐธ๊ณ : ์ขŒ์ถฉ์šฐ๋Œ ORM ๊ฐœ๋ฐœ๊ธฐ | Devon 2012 http://www.slideshare.net/daumdna/devon -2012-b4-orm
2012๋…„ 8์›” ๊ตญ๋‚ด ๊ตฌ๊ธ€๊ฒ€์ƒ‰
2012๋…„ 8์›” ์ „์„ธ๊ณ„ ๊ตฌ๊ธ€๊ฒ€์ƒ‰
Spring Data ๋ฐ์ดํ„ฐ๋ฅผ ๋‹ค๋ฃจ๋Š”๋ฐ ํ•„์š”ํ•œ, ๊ธฐ๋ณธ ์ธํ„ฐํŽ˜์ด์Šค๋ฅผ ์ •์˜ํ•จ. ๊ตฌํ˜„์ฒด๋„ ์ œ๊ณต Spring Data JPA, MongoDB, REDIS, SOLR, ElasticSerch ๋“ฑ
JPA ์ž๋ฐ”์—์„œ ์ œ์ •ํ•œ, ORM ๊ด€๋ จ ํ‘œ์ค€ ์ŠคํŽ™ ๊ตฌํ˜„์ฒด๋กœ๋Š” Hibernate, EclipseLINK ๋“ฑ
JPA ์žฅ์  - ์ฟผ๋ฆฌ๋ฅผ ๋งŒ๋“ค์ง€ ์•Š์œผ๋‹ˆ, DB ๋ฒค๋”์— ์ข…์† ์ ์ด์ง€ ์•Š๋‹ค. - ๋‹จ์ˆœ ํ…Œ์ด๋ธ” ๋งคํ•‘ ์ •๋„๋ผ๋ฉด, ์‰ฝ๊ฒŒ ๊ตฌํ˜„ ๊ฐ€๋Šฅ - ์ˆœ์ˆ˜ํ•œ ๋ชจ๋ธ ๊ฐ์ฒด๋ฅผ ์ง€ํ–ฅํ•˜๋Š” Persistence ์ฝ”๋”ฉ ํŒจํ„ด์„ ๋”ฐ๋ผ๊ฐˆ ์ˆ˜ ์žˆ ๋‹ค.
JPA ๋‹จ์  - 10ms ํŠœ๋‹์ด ์ค‘์š”ํ•œ ์„œ๋น„์Šค - N+1 ์„ฑ๋Šฅ ๋ฌธ์ œ. ์ฟผ๋ฆฌ๊ฐ€ 100๊ฐœ๊ฐ€ ๋™์‹œ์— ๋‚ ์•„๊ฐ„๋‹ค. - ์ฟผ๋ฆฌ๋ฅผ ๋จผ์ € ์ƒ๊ฐํ•˜๊ณ , ์ฝ”๋”ฉํ•˜๋ฉด ์–ด๋ ต๋‹ค. ํŠนํžˆ JOIN
์ผ๋ฐ˜์ ์ธ MVC-DAO ํŒจํ„ด SERVICE DAO =Interface= DAOImpl =Implements=
Spring DATA-JPA DAO ํŒจํ„ด SERVICE DAO =Interface= DAOImpl =Implements=
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * TABLE โ€“ CLASS ๋งคํ•‘ TV_SECTION TABLE TvSection Entity Class
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * TABLE โ€“ CLASS ๋งคํ•‘ @Entity @Table(name="tv_section") public class TvSection { @Id @Column(name = "tv_program_id") private long tvProgramId; private int channel;
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * DAO ์ธํ„ฐํŽ˜์ด์Šค ๋งŒ๋“ค๊ธฐ @Repository public interface TvSectionRepository extends PagingAndSortingRepository<TvSection, Long> { }
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * ๊ฒฐ๊ณผ ๊ฐ€์ ธ์˜ค๊ธฐ tvSectionRepository.findAll();
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์›๋ฆฌ - 1 DAO ์ธํ„ฐํŽ˜์ด์Šค๋งŒ ์ •์˜ํ•˜๋ฉด ํ•˜์œ„ ๊ตฌํ˜„์€ Spring Data JPA ๊ฐ€ ์•Œ์•„์„œ.. ์ปจํ…์ŠคํŠธ๊ฐ€ ๋กœ๋”ฉ์ด ๋ ๋•Œ, ๋‚ด๊ฐ€ ์ •์˜ํ•œ ์ฟผ๋ฆฌ๋ฅผ ์ƒ์„ฑํ•ด๋‘ก๋‹ˆ๋‹ค.
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์›๋ฆฌ - 2 ๋Œ€๋ถ€๋ถ„์˜ CRUD ๊ฐ€ ํ•ด๊ฒฐ๋œ ๊ตฌํ˜„์ฒด๊ฐ€ ์กด์žฌํ•ฉ ๋‹ˆ๋‹ค. PagingAndSortingRepository โ€“ ํŽ˜์ด์ง• ๊ธฐ๋Šฅ CrudRepository โ€“ CRUD ๊ธฐ๋Šฅ Repository - ๊ธฐ๋ณธ
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ํŽ˜์ด์ง• ๊ฒฐ๊ณผ ๊ฐ€์ ธ์˜ค๊ธฐ Sort sort = new Sort( new Order(Direction.DESC, "lastmodified") ); Pageable pageable = new PageRequest(0, 10, sort); tvSectionRepository.findAll(pageable);
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ -1 @Repository public interface TvSectionRepository extends PagingAndSortingRepository<TvSection, Long> { TvSection findByTvProgramId(long Id); }
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ Method ์ด๋ฆ„์„ ์‚ฌ์šฉ And findByLastnameAndFirstname โ€ฆ where x.lastname = ?1 and x.firstname = ?2 Or findByLastnameOrFirstname โ€ฆ where x.lastname = ?1 or x.firstname = ?2 Between findByStartDateBetween โ€ฆ where x.startDate between 1? and ?2 Like findByFirstnameLike โ€ฆ where x.firstname like ?1
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ํ…Œ์ด๋ธ”์„ ์—ฌ๋Ÿฌ ๊ฐœ ์กฐ์ธํ•˜๊ณ  ์ˆ˜๋งŽ์€ ์กฐ๊ฑด ๋ฌธ์ด ์žˆ๋Š” ๊ฒฝ์šฐ๋ผ๋ฉดโ€ฆ findByLastnameAndFirstnameOrDateB etweenChannelLikeLastnameNotInStar tDate(String a, String b, Date c, โ€ฆ..)
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ Spec ์„ ์ง€์ • - CriteriaBuilder ๋ฅผ ์ด์šฉํ•˜๊ธฐ - QueryDSL์„ ์ด์šฉํ•˜๊ธฐ tvSectionRepository.findAll(spec, pageable);
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ CriteriaBuilder CriteriaBuilder cb = entityManager.getCriteriaBuilder(); CriteriaQuery<Order> cq = cb.createQuery(Order.class); SetJoin<Order, Item> itemNode = cq.from(Order.class).join(Order_.items); cq.where( cb.equal(itemNode.get(Item_.id), 5 ) ) .distinct(true);
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ CriteriaBuilder CriteriaBuilder cb = entityManager.getCriteriaBuilder(); CriteriaQuery<Order> cq = cb.createQuery(Order.class); SetJoin<Order, Item> itemNode = cq.from(Order.class).join(Order_.items); cq.where( cb.equal(itemNode.get(Item_.id), 5 ) ) .distinct(true);
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ QueryDSL QTvSection.tvSection.channel.eq(value); QTvSection.tvSection.title.like(value)
JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ QueryDSL BooleanBuilder builder = new BooleanBuilder(); builder.and( QTvSection.tvSection.channel.eq(value) ); builder.and( QTvSection.tvSection.titleKo.like(value) ); builder.and( QTvSection.tvSection.titleKo.isNotNull() ); repository.findAll(builder.getValue(), pageable);
์งˆ๋ฌธํ•ด์ฃผ์„ธ์š”โ€ฆ.ใ„ทใ„ท

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[162] jpaแ„‹แ…ช แ„†แ…ฉแ„ƒแ…ฅแ†ซ แ„Œแ…กแ„‡แ…ก แ„ƒแ…ฆแ„‹แ…ตแ„แ…ฅ แ„Œแ…ฅแ„Œแ…กแ†ผ แ„€แ…ตแ„‰แ…ฎแ†ฏ[162] jpaแ„‹แ…ช แ„†แ…ฉแ„ƒแ…ฅแ†ซ แ„Œแ…กแ„‡แ…ก แ„ƒแ…ฆแ„‹แ…ตแ„แ…ฅ แ„Œแ…ฅแ„Œแ…กแ†ผ แ„€แ…ตแ„‰แ…ฎแ†ฏ
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Spring data jpa

  • 1. Spring Data JPA + Hibernate + QueryDSL
  • 2. ORM ์„ ์‚ฌ์šฉํ•˜๋Š”๋ฐ ์‰ฌ์šด ๋ฐฉ๋ฒ•์„ ์ œ๊ณต ์ฐธ๊ณ : ์ขŒ์ถฉ์šฐ๋Œ ORM ๊ฐœ๋ฐœ๊ธฐ | Devon 2012 http://www.slideshare.net/daumdna/devon -2012-b4-orm
  • 3. 2012๋…„ 8์›” ๊ตญ๋‚ด ๊ตฌ๊ธ€๊ฒ€์ƒ‰
  • 4. 2012๋…„ 8์›” ์ „์„ธ๊ณ„ ๊ตฌ๊ธ€๊ฒ€์ƒ‰
  • 5. Spring Data ๋ฐ์ดํ„ฐ๋ฅผ ๋‹ค๋ฃจ๋Š”๋ฐ ํ•„์š”ํ•œ, ๊ธฐ๋ณธ ์ธํ„ฐํŽ˜์ด์Šค๋ฅผ ์ •์˜ํ•จ. ๊ตฌํ˜„์ฒด๋„ ์ œ๊ณต Spring Data JPA, MongoDB, REDIS, SOLR, ElasticSerch ๋“ฑ
  • 6. JPA ์ž๋ฐ”์—์„œ ์ œ์ •ํ•œ, ORM ๊ด€๋ จ ํ‘œ์ค€ ์ŠคํŽ™ ๊ตฌํ˜„์ฒด๋กœ๋Š” Hibernate, EclipseLINK ๋“ฑ
  • 7. JPA ์žฅ์  - ์ฟผ๋ฆฌ๋ฅผ ๋งŒ๋“ค์ง€ ์•Š์œผ๋‹ˆ, DB ๋ฒค๋”์— ์ข…์† ์ ์ด์ง€ ์•Š๋‹ค. - ๋‹จ์ˆœ ํ…Œ์ด๋ธ” ๋งคํ•‘ ์ •๋„๋ผ๋ฉด, ์‰ฝ๊ฒŒ ๊ตฌํ˜„ ๊ฐ€๋Šฅ - ์ˆœ์ˆ˜ํ•œ ๋ชจ๋ธ ๊ฐ์ฒด๋ฅผ ์ง€ํ–ฅํ•˜๋Š” Persistence ์ฝ”๋”ฉ ํŒจํ„ด์„ ๋”ฐ๋ผ๊ฐˆ ์ˆ˜ ์žˆ ๋‹ค.
  • 8. JPA ๋‹จ์  - 10ms ํŠœ๋‹์ด ์ค‘์š”ํ•œ ์„œ๋น„์Šค - N+1 ์„ฑ๋Šฅ ๋ฌธ์ œ. ์ฟผ๋ฆฌ๊ฐ€ 100๊ฐœ๊ฐ€ ๋™์‹œ์— ๋‚ ์•„๊ฐ„๋‹ค. - ์ฟผ๋ฆฌ๋ฅผ ๋จผ์ € ์ƒ๊ฐํ•˜๊ณ , ์ฝ”๋”ฉํ•˜๋ฉด ์–ด๋ ต๋‹ค. ํŠนํžˆ JOIN
  • 10. Spring DATA-JPA DAO ํŒจํ„ด SERVICE DAO =Interface= DAOImpl =Implements=
  • 11. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * TABLE โ€“ CLASS ๋งคํ•‘ TV_SECTION TABLE TvSection Entity Class
  • 12. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * TABLE โ€“ CLASS ๋งคํ•‘ @Entity @Table(name="tv_section") public class TvSection { @Id @Column(name = "tv_program_id") private long tvProgramId; private int channel;
  • 13. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * DAO ์ธํ„ฐํŽ˜์ด์Šค ๋งŒ๋“ค๊ธฐ @Repository public interface TvSectionRepository extends PagingAndSortingRepository<TvSection, Long> { }
  • 14. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ * ๊ฒฐ๊ณผ ๊ฐ€์ ธ์˜ค๊ธฐ tvSectionRepository.findAll();
  • 15. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์›๋ฆฌ - 1 DAO ์ธํ„ฐํŽ˜์ด์Šค๋งŒ ์ •์˜ํ•˜๋ฉด ํ•˜์œ„ ๊ตฌํ˜„์€ Spring Data JPA ๊ฐ€ ์•Œ์•„์„œ.. ์ปจํ…์ŠคํŠธ๊ฐ€ ๋กœ๋”ฉ์ด ๋ ๋•Œ, ๋‚ด๊ฐ€ ์ •์˜ํ•œ ์ฟผ๋ฆฌ๋ฅผ ์ƒ์„ฑํ•ด๋‘ก๋‹ˆ๋‹ค.
  • 16. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์›๋ฆฌ - 2 ๋Œ€๋ถ€๋ถ„์˜ CRUD ๊ฐ€ ํ•ด๊ฒฐ๋œ ๊ตฌํ˜„์ฒด๊ฐ€ ์กด์žฌํ•ฉ ๋‹ˆ๋‹ค. PagingAndSortingRepository โ€“ ํŽ˜์ด์ง• ๊ธฐ๋Šฅ CrudRepository โ€“ CRUD ๊ธฐ๋Šฅ Repository - ๊ธฐ๋ณธ
  • 17. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ํŽ˜์ด์ง• ๊ฒฐ๊ณผ ๊ฐ€์ ธ์˜ค๊ธฐ Sort sort = new Sort( new Order(Direction.DESC, "lastmodified") ); Pageable pageable = new PageRequest(0, 10, sort); tvSectionRepository.findAll(pageable);
  • 18. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ -1 @Repository public interface TvSectionRepository extends PagingAndSortingRepository<TvSection, Long> { TvSection findByTvProgramId(long Id); }
  • 19. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ Method ์ด๋ฆ„์„ ์‚ฌ์šฉ And findByLastnameAndFirstname โ€ฆ where x.lastname = ?1 and x.firstname = ?2 Or findByLastnameOrFirstname โ€ฆ where x.lastname = ?1 or x.firstname = ?2 Between findByStartDateBetween โ€ฆ where x.startDate between 1? and ?2 Like findByFirstnameLike โ€ฆ where x.firstname like ?1
  • 20. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ํ…Œ์ด๋ธ”์„ ์—ฌ๋Ÿฌ ๊ฐœ ์กฐ์ธํ•˜๊ณ  ์ˆ˜๋งŽ์€ ์กฐ๊ฑด ๋ฌธ์ด ์žˆ๋Š” ๊ฒฝ์šฐ๋ผ๋ฉดโ€ฆ findByLastnameAndFirstnameOrDateB etweenChannelLikeLastnameNotInStar tDate(String a, String b, Date c, โ€ฆ..)
  • 21. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ Spec ์„ ์ง€์ • - CriteriaBuilder ๋ฅผ ์ด์šฉํ•˜๊ธฐ - QueryDSL์„ ์ด์šฉํ•˜๊ธฐ tvSectionRepository.findAll(spec, pageable);
  • 22. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ CriteriaBuilder CriteriaBuilder cb = entityManager.getCriteriaBuilder(); CriteriaQuery<Order> cq = cb.createQuery(Order.class); SetJoin<Order, Item> itemNode = cq.from(Order.class).join(Order_.items); cq.where( cb.equal(itemNode.get(Item_.id), 5 ) ) .distinct(true);
  • 23. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ CriteriaBuilder CriteriaBuilder cb = entityManager.getCriteriaBuilder(); CriteriaQuery<Order> cq = cb.createQuery(Order.class); SetJoin<Order, Item> itemNode = cq.from(Order.class).join(Order_.items); cq.where( cb.equal(itemNode.get(Item_.id), 5 ) ) .distinct(true);
  • 24. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ QueryDSL QTvSection.tvSection.channel.eq(value); QTvSection.tvSection.title.like(value)
  • 25. JPA ๋ฅผ ์ด์šฉํ•œ DAO ๊ตฌํ˜„ โ€ข ์กฐ๊ฑด๋ฌธ ์ถ”๊ฐ€ํ•˜๊ธฐ โ€“ QueryDSL BooleanBuilder builder = new BooleanBuilder(); builder.and( QTvSection.tvSection.channel.eq(value) ); builder.and( QTvSection.tvSection.titleKo.like(value) ); builder.and( QTvSection.tvSection.titleKo.isNotNull() ); repository.findAll(builder.getValue(), pageable);