Why are Entity dependencies not being loaded?

Question

Java

There are classes managers:

@Entity
@Table (name = "managers")
public class Managers {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
...........
///////////////////// Worcs worcs ////////////////////////
    @OneToMany(cascade = CascadeType.PERSIST,
            orphanRemoval = true)
    @JoinTable(name="worcs_managers",
            joinColumns =
                    {@JoinColumn(name = "managers_id", referencedColumnName = "id")},
            inverseJoinColumns =
                    {@JoinColumn(name = "worcs_id", referencedColumnName = "id")})
    private Set<Worcs> worcs;

    public Set<Worcs> getWorcs() {
        return worcs;
    }

    public void setWorcs(Set<Worcs> worcs) {
        this.worcs = worcs;
    }
    ///////////////////// Worcs worcs ////////////////////////
.......

and class works

@Entity
@Table (name = "worcs")
public class Worcs {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

..................
///////////////////// Manager manager ////////////////////////
    @ManyToOne(fetch = FetchType.EAGER, cascade = {CascadeType.MERGE, CascadeType.PERSIST})
    @JoinTable(name="worcs_managers",
            joinColumns =
                    {@JoinColumn(name = "worcs_id", referencedColumnName = "id")},
            inverseJoinColumns =
                    {@JoinColumn(name = "managers_id", referencedColumnName = "id")})
    private Managers managers;

    public Managers getManagers() {
        return managers;
    }

    public void setManagers(Managers managers) {
        this.managers = managers;
    }

/////////// Manager manager ////////////////////////
........

As you can see in the above classes, I tried to "hard-code" the One-to-many and many-to-one relationships.
But when I call the manager.getWorks() class, I don't receive more than one worcs object, although I add it beforehand and there is a connection in the database.
Link table :

Table worcs:

Table with managers:

Well, actually the code itself that shows 0:


Gave me an exhaustive answer on form one, after reading the documentation provided at the link below, all questions disappeared:
https://docs.jboss.org/hibernate /orm/3.6/reference...

Answer 1

Add mappedBy="managers" to the OneToMany annotation.