CODEWITHSUNDEEP
jpaspring-dataspring-data-jpaimmutabilityinsert-update
Thomas Stubbe
Thomas Stubbe

Reputation: 1985

Spring-data: prevent update

I'm looking for a way to prevent objects from updating with spring-data. I've found some topics about this, but none of them have a solution.

I have an object, that can be created and read. That's it. I do not want to support modifications/updates. I manage/generate the database-id myself.

I would love to use org.springframework.data.repository.Repository interface (or JpaRepository/CrudRepository if I can somehow change the <S extends T> S save(S entity); logic to prevent update), because I love the clean findBy... interface notations.

The best solution I've found so far is to implement Persistable and overwrite the isNew(…) to always return true. But that's just crappy, because the object is not "new" if it's read-only.

Is there any clean way to achieve this?

Upvotes: 1

Views: 2919

Answers (1)

Cepr0
Cepr0

Reputation: 30279

You can, for example, simply use Repository event handler to restrict update and delete operations:

@RepositoryEventHandler(MyEntity.class)
public class MyEntityEventHandler {

  @HandleBeforeSave
  public void handleUpdate(MyEntity entity) {
      throw new HttpRequestMethodNotSupportedException("Update")
  }

  @HandleBeforeDelete
  public void handleDelete(MyEntity entity) {
      throw new HttpRequestMethodNotSupportedException("Delete")
  }
}

Upvotes: 1

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