JPA - I get multiple rows instead of 1 - sql

Question

I spent many hours to solve my problem but without success. I'd like to achieve something like this (but with ONE row instead of TWO):
My database:
CREATE TABLE odo.d_kryterium_naruszen (
id bigserial primary key,
kryterium text not null,
data_wpr TIMESTAMP not null DEFAULT clock_timestamp(),
opr bigint not null
);
CREATE TABLE odo.d_czynnik_naruszen (
id bigserial primary key,
czynnik text not null,
id_kryterium_naruszen bigint not null references odo.d_kryterium_naruszen(id),
stopien NUMERIC(10,2) not null,
data_wpr TIMESTAMP not null DEFAULT clock_timestamp(),
opr bigint not null
);
CREATE TABLE odo.d_dotkliwosc_naruszenia (
id bigserial primary key,
zakres numrange not null,
ocena text not null,
opis text not null,
wymagane_dzialanie text not null,
data_wpr TIMESTAMP not null DEFAULT clock_timestamp(),
opr bigint not null
);
CREATE TABLE odo.ocena_naruszenia_wynik (
id bigserial primary key,
wartosc_dotkliwosci_naruszenia NUMERIC(10,2) not null,
status_id bigint not null references odo.d_status_oceny_naruszenia(id),
ocena_naruszenia_id bigint not null references odo.ocena_naruszenia(id),
data_wpr TIMESTAMP not null DEFAULT clock_timestamp(),
opr bigint not null
);
create table odo.czynnik_naruszen_wynik(
id bigserial primary key,
ocena_naruszenia_wynik_id bigint not null references odo.ocena_naruszenia_wynik(id),
czynnik_naruszen_id bigint not null references odo.d_czynnik_naruszen(id),
komentarz text,
czynnik_wybrany boolean not null default false
wartosc_wybrana NUMERIC(10,2) not null,
data_wpr TIMESTAMP not null DEFAULT clock_timestamp(),
opr bigint not null
);
And here my entities:
#Data
#Entity
#Table(schema = "odo", name = "d_kryterium_naruszen")
public class ViolationCriterion extends BaseEntity {
#Column(name = "kryterium")
private String criterion;
#OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
#JoinColumn(name = "id_kryterium_naruszen")
private List<ViolationFactor> violationFactors;
}
#Data
#Entity
#Table(schema = "odo", name = "d_czynnik_naruszen")
public class ViolationFactor extends BaseEntity {
#Column(name = "czynnik")
private String factor;
#Column(name = "stopien")
private float degree;
#OneToMany
#JoinColumn(name = "czynnik_naruszen_id")
private List<IncidentAssessmentFactor> incidentAssessmentFactor;
}
#Data
#Entity
#Table(schema = "odo", name = "czynnik_naruszen_wynik")
public class IncidentAssessmentFactor extends BaseEntity {
#Column(name="komentarz")
private String comment;
#Column(name="czynnik_wybrany")
private Boolean factorIsSelected;
#Column(name = "wartosc_wybrana")
private Float value;
#OneToOne(fetch = FetchType.LAZY)
#JoinColumn(name="ocena_naruszenia_wynik_id", updatable=false, insertable=false)
private IncidentAssessment incidentAssessment;
}
#Data
#Entity
#Table(schema = "odo", name = "ocena_naruszenia_wynik")
public class IncidentAssessment extends BaseEntity {
#Column(name="ocena_naruszenia_id")
private Long incidentAssessmentId;
#Column(name = "wartosc_dotkliwosci_naruszenia")
private Float severityDegreeValue;
My repository:
#Repository
public interface ViolationCriterionRepository extends JpaRepository<ViolationCriterion, Long> {
// #Query("select vc from ViolationCriterion vc inner join vc.violationFactors vf inner join vf.incidentAssessmentFactor iaf inner join iaf.incidentAssessment ia where ia.incidentAssessmentId = ?1 group by vc ")
#Query("select vc from ViolationCriterion vc inner join vc.violationFactors vf inner join vf.incidentAssessmentFactor iaf inner join iaf.incidentAssessment ia where ia.incidentAssessmentId = ?1 group by vc ")
// #Query(value = "select kn.kryterium from odo.d_kryterium_naruszen kn join odo.d_czynnik_naruszen cn on kn.id = cn.id_kryterium_naruszen join odo.czynnik_naruszen_wynik cnw on cnw.czynnik_naruszen_id = cn.id join odo.ocena_naruszenia_wynik onw on cnw.ocena_naruszenia_wynik_id = onw.id where onw.ocena_naruszenia_id = ?1 group by kn.id, cn.id, cnw.id, onw.id", nativeQuery = true)
// #Query(value = "select kn.id, kn.kryterium, kn.data_wpr, kn.opr, cn.id, cn.czynnik, cn.stopien, cn.opr, cn.data_wpr, cnw.id, cnw.data_wpr, cnw.opr, cnw.komentarz, cnw.czynnik_wybrany, cnw.wartosc_wybrana, onw.id, onw.data_wpr, onw.opr, onw.ocena_naruszenia_id, onw.wartosc_dotkliwosci_naruszenia from odo.d_kryterium_naruszen kn join odo.d_czynnik_naruszen cn on kn.id = cn.id_kryterium_naruszen join odo.czynnik_naruszen_wynik cnw on cnw.czynnik_naruszen_id = cn.id join odo.ocena_naruszenia_wynik onw on cnw.ocena_naruszenia_wynik_id = onw.id where onw.ocena_naruszenia_id = ?1 group by kn.id, cn.id, cnw.id, onw.id", nativeQuery = true)
List<ViolationCriterion> findIncidentAssessmentByIncidentAssessmentId(Long incidentId);
// List<ViolationCriterion> findByViolationFactorsIncidentAssessmentFactorIncidentAssessmentIncidentAssessmentIdGroupByViolationCriterionCriterion(Long id);
}
And here I call my repository:
List<ViolationCriterion> violationCriteria = violationCriterionRepository.findIncidentAssessmentByIncidentAssessmentId(id);//vi
In a table czynnik_naruszen_wynik I have 2 different rows because I have 2 rows in table ocena_naruszenia_wynik. The problem is that I have multiple values of entity IncidentAssessmentFactor instead of 1