<form action="saveCandidate">
		name: <input type="text" value="${candidate.name}" name="name" />
		surname: <input type="text" value="${candidate.surname}"name="surname" /> 
		phone: <input type="text"	value="${candidate.phone}" name="phone" /> 
		cv_url: <input type="text"	value="${candidate.resumeUrl}" name="resumeUrl" /> <input
			type="hidden" name="id" value="${candidate.id}"> <input
			type="submit" value="save changes" />
	</form>

@RequestMapping("/saveCandidate")
	public String saveCandidate(Model model, @ModelAttribute Candidate candidate) {
		candidateService.update(candidate);//тут простой апдейт делается
		return "candidateMenu";
	}

public class Candidate extends Person {//в person id, name 

	private String phone;
	private Date date;
	private User author;
	private String resumeUrl;
	private List<CandidateStatus> statusList = new LinkedList<CandidateStatus>();
	private Set<Vacancy> vacancies = new HashSet<Vacancy>();
	private Set<Skill> skills = new HashSet<Skill>();
	private List<Note> comments = new LinkedList<Note>();
	private Set<Event> events = new HashSet<Event>();

//set get
}

Hibernate: update candidate set name=?, surname=?, author_id=?, creation_date=?, phone=?, cv_url=? where id=?

@ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
	@JoinTable(name = "candidate_vacancy", joinColumns = @JoinColumn(name = "candidate_id"), inverseJoinColumns = @JoinColumn(name = "vacancy_id"))
	@XmlTransient
	public Set<Vacancy> getVacancies() {
		return vacancies;
	}

Hibernate: update candidate set name=?, surname=?, author_id=?, creation_date=?, phone=?, cv_url=? where id=?
Hibernate: delete from candidate_skill where candidate_id=?
Hibernate: delete from candidate_vacancy where candidate_id=?

	@RequestMapping("/saveCandidate")
	public String saveCandidate(Model model, @ModelAttribute Candidate candidate) {
		candidate.setSkills(null);
		candidateService.update(candidate);//тут простой апдейт делается
		return "candidateMenu";
	}