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