java - Hibernate many-to-one delete only child -

where lot of similar topics still can't handle myself, sorry.

so, have object "bank" parent of "office".
trying delete single office, it, offices of parent bank being deleted.
here's code:
bank

@entity @table(name = "banks") public class bank {     public bank() {     }      public bank(string name) {         this.name = name;     }      @id     @column(name = "id")     @generatedvalue     private int id;      @column(name = "name")     private string name;      @onetomany(mappedby = "bank", cascade = cascadetype.all, fetch = fetchtype.eager, orphanremoval = true)     @joincolumn(name = "bank_id")     private list<office> officelist; 

office

@entity @table(name = "offices") public class office {     public office() {     }      public office(string city, string address, string workinghours, bank bank) {         this.city = city;         this.address = address;         this.workinghours = workinghours;         this.bank = bank;     }      @id     @column(name = "id")     @generatedvalue     private int id;          @manytoone(fetch = fetchtype.eager, cascade = cascadetype.remove)     @joincolumn(name = "bank_id")     private bank bank;      @column(name = "city")     private string city;      @column(name = "address")     private string address;      @column(name = "working_hours")     private string workinghours; 

and officedao

@repository @transactional public class officedaoimpl implements officedao {      @autowired     private sessionfactory sessionfactory;      @override     public office getbyoffice_id(int office_id) {         return (office) sessionfactory.getcurrentsession().get(office.class, office_id);     }      @override     public list<office> getalloffice() {         criteria criteria = sessionfactory.getcurrentsession().createcriteria(office.class);         return criteria.list();     }      @override     public int save(office office) {         return (integer) sessionfactory.getcurrentsession().save(office);     }      @override     public void update(office office) {         sessionfactory.getcurrentsession().merge(office);     }      @override     public void view(office office) {         sessionfactory.getcurrentsession().merge(office);     }      @override     public void delete(int office_id) {         office s = getbyoffice_id(office_id);         system.out.println("trying delete" + office_id);         sessionfactory.getcurrentsession().delete(s);     }  } 

hibernate query trace deleting office:

hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete offices id=? hibernate: delete banks id=? 

what doing wrong? advice appreciated.

update

if delete cascade = cascadetype.remove office, hibernate won't send delete request.

i've found issue. looks hibernate can't remove child entity while in parent list, add delete method in office:

s.getbank().getofficelist().remove(s); 

and yeah, cascade.remove @ office should not exist.