JPA OneToOne cascade delete - jpa

Question

i have a rellationship between 2 classes Document and Medecin
#Entity
public class Document implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
private String annee;
private Date dateVisite;
private String secteur;
private String typeVisite;
#OneToOne( fetch=FetchType.LAZY,cascade=CascadeType.REMOVE)
#JoinColumn(name = "idMedecin")
private Medecin medecin;
public Document(String annee,
Date dateVisite, String secteur, String typeVisite) {
super();
this.annee = annee;
this.dateVisite = dateVisite;
this.secteur = secteur;
this.typeVisite = typeVisite;
}
public String getSecteur() {
return secteur;
}
public void setSecteur(String secteur) {
this.secteur = secteur;
}
public String getTypeVisite() {
return typeVisite;
}
public void setTypeVisite(String typeVisite) {
this.typeVisite = typeVisite;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getAnnee() {
return annee;
}
public void setAnnee(String annee) {
this.annee = annee;
}
public Date getDateVisite() {
return dateVisite;
}
public void setDateVisite(Date dateVisite) {
this.dateVisite = dateVisite;
}
}
and the medecin entity is
#Entity
public class Medecin implements Serializable {
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private long id;
private String nom;
private String secteur;
private int telephone;
private int specialite;
public Medecin() {
super();
// TODO Auto-generated constructor stub
}
public Medecin(String nom, String secteur, int telephone, int specialite) {
super();
this.nom = nom;
this.secteur = secteur;
this.telephone = telephone;
this.specialite = specialite;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getNom() {
return nom;
}
public void setNom(String nom) {
this.nom = nom;
}
public String getSecteur() {
return secteur;
}
public void setSecteur(String secteur) {
this.secteur = secteur;
}
public int getTelephone() {
return telephone;
}
public void setTelephone(int telephone) {
this.telephone = telephone;
}
public int getSpecialite() {
return specialite;
}
public void setSpecialite(int specialite) {
this.specialite = specialite;
}
}
the problem is that after i generate the database i want if i delete the document record from the database i want the medecin record will be deleted also but in my case if i delete the document record the medecin record dont be deleted

Answer 1

Based on your configuration, Hibernate will generate Document table with foreign key pointing to Medicine table.
To achieve your requirement, it should be like:
public class Document {
#OneToOne(mappedBy = "document", cascade = CascadeType.REMOVE)
private Medicine medicine;
}
public class Medicine {
#OneToOne
private Document document;
}
Updated
public void delete(int id){
Document document = entityManager.find(Document.class, id);
entityManager.remove(document);
entityManager.flush();
}