How do I update an entity using spring-data-jpa?

Question

Well the question pretty much says everything. Using JPARepository how do I update an entity?

JPARepository has only a save method, which does not t

Answer 1

This is how I solved the problem:

User inbound = ...
User existing = userRepository.findByFirstname(inbound.getFirstname());
if(existing != null) inbound.setId(existing.getId());
userRepository.save(inbound);