Add support for Optimistic Locking using @Version #93
Description
I have an entity bellow:
@Data @NoArgsConstructor @Table public class Role { @Id private Long id; private String name; @Version private Long version = 0L; public Role(String name) { this.name = name; } } And controller like this:
@RequestMapping("/api/role/save") public Mono<Role> save(@RequestBody Role role){ return roleRepo.save(role); } When I save a Role without @Version everything is fine
But when I add @Version, it throws exception like this:
java.lang.IllegalArgumentException: Could not obtain required identifier from entity Role(id=null, name=ADMIN, version=0)! at org.springframework.data.repository.core.EntityInformation.getRequiredId(EntityInformation.java:65) ~[spring-data-commons-2.2.0.M2.jar:2.2.0.M2] at org.springframework.data.r2dbc.repository.support.SimpleR2dbcRepository.save(SimpleR2dbcRepository.java:72) ~[spring-data-r2dbc-1.0.0.M1.jar:1.0.0.M1] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201] Source code demo:
https://github.com/roboticscm/r2dbc-reactive-redis.git