From the Spring Boot reference… 62.4 Separate @Entity definitions from Spring configuration Spring Boot tries to guess the location of your @Entity definitions, based on the @EnableAutoConfiguration it finds. To get more control, you can use the @EntityScan annotation, e.g. @Configuration @EnableAutoConfiguration @EntityScan(basePackageClasses=City.class) public class Application { //… }
Thanks to sionnach733 who put me on the right way
Extending Mike Lively’s answer with a code sample & referring to Oracle too. I had this problem with the OracleDialect (Oracle10gDialect). Adding an annotation @Type to the UUID field fixed it for me. @Id @Type(type=”uuid-char”) private UUID id; Note: also used a TwoWayStringBridge on this field, using the @FieldBridge annotation. Note: type=”uuid-binary” did not work; … Read more
Since you errormessage contains that suspicious extra space at the end: Unable to resolve name [org.hibernate.dialect.MySQL5Dialect ] I will take a wild guess that you have an extra space at the end of your dialect property. So look for “org.hibernate.dialect.MySQL5Dialect ” and change it to: “org.hibernate.dialect.MySQL5Dialect”
This is an Eclipse quirk. I recently had exactly this problem when I created a new JPA project with the JPA library configuration disabled, but didn’t manually configure the JPA libraries before I created the entities by the Eclipse New JPA Entity wizard. After creating the entities I configured the JPA libraries in project’s Build … Read more
The server loads the item with the EntityManager which returns Item(id = 1, version = 1, name = “a”), it changes the name and persist Item(id = 1, version = 1, name = “b”). Hibernate increments the version to 2. That’s a misuse of the JPA API, and the root cause of your bug. If … Read more
I suggest to use Mockito Framework it is very easy to use and understand. @Mock private EntityManager entityManager; If you want to use any method that belongs to entityManager, you should call. Mockito.when(METHOD_EXPECTED_TO_BE_CALLED).thenReturn(AnyObjectoftheReturnType); When you run your test, any call previosly declared in the Mockito.when for the EntityManager will return the value put in the … Read more
It may be an overkill but have you thought about writing your own CustomIDGenerator which probably subclasses say the AutoGenerator of hibernate and exposes a couple of methods where you can set the id of the next class object to be generated so for example class MyGenerator extends …. { public void setIdForObject(Class clazz, Long … Read more
I had the same conclusions about these implementations. OpenJPA was/seemed buggy Hibernate had tons of libraries and seemed to have trouble with not lazy loading everything. Toplink ended up as my choice. It was not as flexible as Hibernate would have been but it works and I don’t have to install commons-logging. The one I … Read more
As said We have a distinct layer for business logic (usually called Service layer) Domain-Driven-Design (DDD) states you should put business logic inside your domain model. And, believe me, it is really good. As said by POJO in Action book about Service layer It is Use Case driven It can define Transaction boundaries Before @Service … Read more