package org.example; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.ManyToMany; import javax.persistence.OneToOne; import java.util.Set; @Entity public class User { @Id long oid; private String name; @ManyToMany private Set roles; @OneToOne(mappedBy = "user") private Account account; public String toString() { return "{user:" + oid + " name:" + name + "}"; } public long getOid() { return oid; } public void setOid(long oid) { this.oid = oid; } public Set getRoles() { return roles; } public void setRoles(Set roles) { this.roles = roles; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Account getAccount() { return account; } public void setAccount(Account account) { this.account = account; } }