Introduction to Spring Data

It’s 2016. Are you still writing data queries by hand? Learn how Spring Data gives you the tools to leap over that hurdle and dive into solving problems. Feeling locked into your relational database due to having written gobs of SQL operations? See how Spring Data provides the means to reduce that risk and give you the means to branch into other data stores. In this talk, you’ll see how to rapidly get off the ground with data persistence, how Spring Data supports lots of platforms, and also how you can take your solution and turn it into a REST service with just a few extra lines.

Transcript

1. Unless otherwise indicated, these slides are © 2013-2014 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Introduction to Spring Data Greg Turnquist @gregturn github.com/gregturn
2. GregLTurnquist.com/list
3. GregLTurnquist.com/list
5. We’re hiring! (Atlanta + the world) http://pivotal.io/careers
6. It’s 2016
7. It’s 2016 Why are we still writing…
8. It’s 2016 Why are we still writing… select * from EMPLOYEE where FIRST_NAME = %1
9. It’s 2016 Why are we still writing… select * from EMPLOYEE where FIRST_NAME = %1 select e from Employee e where e.firstName = :name
10. It’s 2016 Why are we still writing… select * from EMPLOYEE where FIRST_NAME = %1 select e from Employee e where e.firstName = :name create .select() .from(EMPLOYEE) .where(EMPLOYEE.FIRST_NAME .equal(name)) .fetch()
11. It’s 2016 Why are we still writing… select * from EMPLOYEE where FIRST_NAME = %1 select e from Employee e where e.firstName = :name create .select() .from(EMPLOYEE) .where(EMPLOYEE.FIRST_NAME .equal(name)) .fetch() SQL JPA jOOQ
12. When we could write…
13. When we could write… save(), findOne(), findAll() exists(), delete(), and count() …includes
14. 10+ years ago SQL
15. Today SQL NoSQL
16. Today SQL NoSQL Cypher MongoDB CLI CQL OQL EJBQL HQL N1QL
17. Spring Data provides… relational non-relational abstraction JDBC
18. Spring Data provides… relational non-relational Elastic Solr Neo4j Cassandra MongoDB Gemfire Redis Couchbase abstraction JDBC
19. Spring Data provides… relational non-relational Elastic Solr Neo4j Cassandra MongoDB Gemfire Redis Couchbase abstraction JDBC JPA
20. Spring Data provides… relational non-relational Spring Data Elastic Solr Neo4j Cassandra MongoDB Gemfire Redis Couchbase abstraction JDBC JPA
21. Spring Data provides… relational non-relational Spring Data Elastic Solr Neo4j Cassandra MongoDB Gemfire Redis Couchbase abstraction JDBC JPA Reactive support coming soon!
22. Dialing it up interface EmployeeRepository extends CrudRepository<Employee, Long> { List<Employee> findByLastName(String f) List<Employee> findByFirstNameAndLastName(String f, String l) List<Employee> findByFirstNameAndManagerName(String f, String m) List<Employee> findTop10ByFirstName(…) // or findFirst10ByFirstName List<Employee> findDistinctEmployeesByFirstName(...) List<Employee> findByFirstNameAndLastNameAllIgnoreCase(...) List<Employee> findByFirstNameOrderByLastNameAsc(...) List<Employee> findByLastNameIsNull(...) }
23. Why stop there? interface CoolRepo extends CrudRepository<Employee, Long> { Stream<Employee> findByLastname(String lastname) @Async Future<Employee> findByLastname(…) @Async CompletableFuture<Employee> findByLastname(…) @Async ListenableFuture<Employee> findByLastname(…) Page<Employee> findAll(Pageable p) Page<Employee> findByFirstName(String f, Pageable p) List<Employee> findAll(Sort s) Page<Employee> findByFirstName(String f, Pageable p, Sort s) }
24. Why stop there? interface CoolRepo extends CrudRepository<Employee, Long> { Stream<Employee> findByLastname(String lastname) @Async Future<Employee> findByLastname(…) @Async CompletableFuture<Employee> findByLastname(…) @Async ListenableFuture<Employee> findByLastname(…) Page<Employee> findAll(Pageable p) Page<Employee> findByFirstName(String f, Pageable p) List<Employee> findAll(Sort s) Page<Employee> findByFirstName(String f, Pageable p, Sort s) } Use @Query to write custom queries
25. Demo Unless otherwise indicated, these slides are 
 © 2013-2014 Pivotal Software, Inc. and licensed under a Creative Commons Attribution- NonCommercial license: http:// creativecommons.org/licenses/by-nc/3.0/ Spring Data
26. Links • http://projects.spring.io/spring-data • https://github.com/spring-projects/spring-data- examples • https://spring.io/guides/tutorials/react-and-spring- data-rest/ • https://spring.io/guides?filter=spring%20data
27. Unless otherwise indicated, these slides are © 2013-2014 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Introduction to Spring Data Greg Turnquist @gregturn github.com/gregturn