Reactive Spring Data

Transcript

1. Reactive Spring Data Mark Paluch @mp911de Christoph Strobl @stroblchristoph 1

2. None

3. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Spring Data Modules 3 JPA

4. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Spring Data Modules 4 JPA

5. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ image: Fire at the Bamber Family Home (FAL v.1.3 License)

6. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/

7. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ image: Fire at the Bamber Family Home (FAL v.1.3 License)

8. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ image: Fire at the Bamber Family Home (FAL v.1.3 License)

9. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

   Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ image: Fire at the Bamber Family Home (FAL v.1.3 License)

10. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ image: Fire at the Bamber Family Home (FAL v.1.3 License)

11. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Today’s data access • Keep resources busy • Connection contention • Usually synchronous/blocking • Multiple requests • Asynchronous isn’t always a good answer X

12. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive data access • Asynchronous • Non Blocking • Event Driven • Data as stream 11

13. Publisher Unless otherwise indicated, these slides are © 2013-2017 Pivotal

    Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ image: Fire at the Bamber Family Home (FAL v.1.3 License) Subscriber Backpressure Stream / Flow Subscribe

14. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ What it takes… Project Reactor 3.1 Spring Framework 5.0 Spring Data 2.0 A reactive (asynchronous, ideally non-blocking) driver Optional: Spring Boot 2.0 (Milestone) 13

15. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ What about JDBC/JPA? JDBC is a blocking API JPA is a blocking API Sorry, no reactive JPA support 14

16. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Spring Data Reactive Template API Reactive Repository support Reduced feature set 15

17. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Imperative Template API 16 <T> T insert(T objectToSave) void insertAll(Collection<…> objects) <T> List<T> find(Query query, Class<T> type)

18. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Template API 17 <T> Mono<T> insert(T objectToSave) <T> Mono<T> insert(Mono<T> objects) <T> Flux<T> find(Query query, Class<T> type)

19. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Repository API 18 interface ReactivePersonRepository extends ReactiveCrudRepository<Person, String> {
 
 Flux<Person> findByLastname(String lastname);
 
 @Query("{ 'firstname': ?0 }")
 Mono<Person> customQuery(String firstname); Flux<Person> findByLastname(Mono<String> lastname); }

20. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Repository API 19 interface ReactivePersonRepository extends ReactiveCrudRepository<Person, String> {
 
 Flux<Person> findByLastname(String lastname);
 
 @Query("{ 'firstname': ?0 }")
 Mono<Person> customQuery(String firstname); Flux<Person> findByLastname(Mono<String> lastname); }

21. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Repository API 20 interface ReactivePersonRepository extends ReactiveCrudRepository<Person, String> {
 
 Flux<Person> findByLastname(String lastname);
 
 @Query("{ 'firstname': ?0 }")
 Mono<Person> customQuery(String firstname); Flux<Person> findByLastname(Mono<String> lastname); }

22. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Repository API 21 interface ReactivePersonRepository extends ReactiveCrudRepository<Person, String> {
 
 Flux<Person> findByLastname(String lastname);
 
 @Query("{ 'firstname': ?0 }")
 Mono<Person> customQuery(String firstname); Flux<Person> findByLastname(Mono<String> lastname); }

23. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Repository API 22 interface ReactivePersonRepository extends RxJava2CrudRepository<Person, String> {
 
 Flowable<Person> findByLastname(String lastname);
 
 @Query("{ 'firstname': ?0 }")
 Maybe<Person> customQuery(String firstname); Single<Person> findByLastname(Mono<String> lastname); }

24. Unless otherwise indicated, these slides are © 2013-2017 Pivotal Software,

    Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Reactive Repository API 23 interface ReactivePersonRepository extends RxJava2CrudRepository<Person, String> {
 
 Flowable<Person> findByLastname(String lastname);
 
 @Query("{ 'firstname': ?0 }")
 Maybe<Person> customQuery(String firstname); Single<Person> findByLastname(Mono<String> lastname); }

25. Learn More. Stay Connected. Spring Data Examples – Repository @

    Github WebFlux Example – Repository @ Github 24 #springone @s1p

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