These are slides for my talk at JeeConf 2018

1. The anatomy of
Spring Data

2. Bio – Maksym Govorischev

3. Bio

4. Bio

5. Bio

6. Bio

7. Bio

8. Quick agenda

9. Quick agenda
• Spring Data

10. Quick agenda
• Spring Data
• Scalability

11. Quick agenda
• Spring Data
• Scalability (not the one you expect)

12. Quick agenda
• Spring Data
• Scalability (not the one you expect)
• Evolutionary & hexagonal architecture

13. Quick agenda
• Spring Data
• Scalability (not the one you expect)
• Evolutionary & hexagonal architecture
• Human stupidity

14. Human stupidity

15. Simple data model

16. Stack
+ +

17. Gradle Project

18. Spring Boot App

19. Repository

20. Simple RESTful controller
…

21. Redis server

22. Spring Data module structure

23. Spring Data module structure

24. Redis configuration

25. Redis configuration

26. Redis configuration

27. Template based approach

28. Template based approach

29. Template based approach

30. Template based approach

31. Spring Data module structure

32. Repository based approach

33. Repository based approach

34. Repository based approach

35. CrudRepository API

36. Repository based approach
…

37. Repositories vs Templates

38. Stack
+ +

39. Stack
+ +

40. MongoDB server

41. MongoDB configuration

42. MongoDB configuration

43. MongoDB configuration
application.properties:

44. Mapping modifications
…

45. Mapping modifications
…

46. Mapping modifications
…

47. Repository updates

48. Repository updates

49. New functionality enabled

50. New functionality enabled

51. New functionality enabled

52. New functionality enabled

53. New functionality enabled
spring-data-commons
spring-data-mongodb

54. Paging and sorting support

55. Adding Spring Data REST

56. Configuring REST resource for repository

57. No need in controller anymore

58. No need in controller anymore

59. Repository composition

60. Repository composition
CdiRepository

61. Repository composition
CdiRepository
MongoRepositoryFactory
RepositoryFactorySupport

62. Repository composition
CdiRepository
MongoRepositoryFactory
RepositoryFactorySupport
RepositoryComposition

63. Repository composition
CdiRepository
MongoRepositoryFactory
RepositoryFactorySupport
RepositoryComposition
Base implementation
Discovered fragments

64. Repository composition
CdiRepository
MongoRepositoryFactory
RepositoryFactorySupport
RepositoryComposition
Base implementation
Discovered fragments
Create Dispatching Proxy

65. Repository composition
CdiRepository
MongoRepositoryFactory
RepositoryFactorySupport
RepositoryComposition
Base implementation
Discovered fragments
Create Dispatching Proxy
Add QueryExecutorMethodInterceptor

66. Repository composition
CdiRepository
MongoRepositoryFactory
RepositoryFactorySupport
RepositoryComposition
Base implementation
Discovered fragments
Create Dispatching Proxy
Add QueryExecutorMethodInterceptor
MongoQueryLookupStrategy.resolveQuery

67. MongoQueryLookupStrategy.resolveQuery

68. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc

69. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc

70. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct
Subject

71. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
Subject Predicate

72. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
Subject Predicate

73. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
TitleOrDescriptionOrderByIdAscTitleAsc
Subject Predicate

74. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
TitleOrDescriptionOrderByIdAscTitleAsc
Subject Predicate

75. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
TitleOrDescriptionOrderByIdAscTitleAsc
IdAscTitleAscTitleOrDescription
Subject Predicate

76. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
TitleOrDescriptionOrderByIdAscTitleAsc
IdAscTitleAscTitleOrDescription
Subject Predicate

77. Query method parsing – see PartTree & Part classes
findDistinctByTitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
findDistinct TitleOrDescriptionAllIgnoreCaseOrderByIdAscTitleAsc
TitleOrDescriptionOrderByIdAscTitleAsc
IdAscTitleAscTitleOrDescription
Subject Predicate

78. Things left untouched
• Repository customizations (partially)
• Projections
• Transactions

79. Summary
• Reduce time to market
• Be flexible & avoid premature design
• Hexagonal architecture
• Scale your skills
• Have fun

80. Thank you
maksym_govorischev
mgovorischev