String queryString = "SELECT boardList FROM BoardPrivileges AS boardPrivs " +
                         "WHERE boardPrivs.userList = :user";

@Entity
public class Users {
    @Id
    @GeneratedValue
    private Long id;
    private String type; // admin / teamlead / normal
    private String name;
    private boolean isAdmin;
    
    @ManyToOne
    private Companies company;
    @ManyToMany
    private Collection<BoardPrivileges> boardPrivilegsList =  new ArrayList<BoardPrivileges>();




@Entity
public class BoardPrivileges {
    @Id
    @GeneratedValue
    private Long id;
    @ManyToMany  (mappedBy = "boardPrivilegsList")
    private Collection<Users> userList = new ArrayList<Users>();
    @ManyToMany  (mappedBy = "boardPrivilegesList")
    private Collection<Boards> boardList = new ArrayList<Boards>();
    //This Board
    private boolean isCreater; //is creater of this board
    private boolean canRead;
    private boolean canUpdate;
    private boolean canDelete;




@Entity
public class Boards {
    @Id
    @GeneratedValue
    private Long id;
    private String title;
    private String description;
    @ManyToOne
    private Companies company;
    @ManyToMany
    private Collection<BoardPrivileges> boardPrivilegesList = new ArrayList<BoardPrivileges>();