Question

我有一个抽象的超类“RessourceMaterielle”和一个实体派生类“Vehicule”。我在sperclass和另一个类“Localization”之间有一对一的映射。抽象超类未在数据库中表示。我希望派生类继承超类和Localization之间的映射，以便Hibernate看到Vehicule和Localization之间的映射。这可能吗？

超类：

@MappedSuperclass
public abstract class RessourceMaterielle extends ObjetMetier {
    private String nom = null;
    private Localisation localisation = null;

        @Column(name = "`NOM`")
    public String getNom() {
        return this.nom == null ? null : new String(this.nom);
    }

    public void setNom(String nom) {
        this.nom = new String(nom);
    }

    @OneToOne(cascade={CascadeType.ALL})
    @JoinColumn(name="`LOCALISATION`")
    public Localisation getLocalisation() {
        return this.localisation == null ? null : this.localisation.clone();
    }

    public void setLocalisation(Localisation localisation) {
        this.localisation = localisation.clone();
    }

    public RessourceMaterielle(){

    }

}

VEHICULE：

@Entity(name = "VEHICULE")
@Table(name = "`VEHICULE`")
public class Vehicule extends RessourceMaterielle {

    public Vehicule() {
    }

}

位置：

@Entity(name = "LOCALISATION")
@Table(name = "`LOCALISATION`")
public class Localisation extends ObjetMetier {
    private double lon = -1111;
    private double lat = -1111;
    private RessourceMaterielle ressourceMaterielle;

    @OneToOne(cascade = { CascadeType.ALL }, mappedBy = "localisation")
    public RessourceMaterielle getRessourceMaterielle() {
        return (RessourceMaterielle) (this.ressourceMaterielle == null ? null : this.ressourceMaterielle.clone());
    }

    public void setRessourceMaterielle(RessourceMaterielle ressourceMaterielle) {
        this.ressourceMaterielle = ressourceMaterielle;
    }

    @Column(name = "`LON`")
    public double getLon() {
        return this.lon;
    }

    public void setLon(double lon) {
        this.lon = lon;
    }

    @Column(name = "`LAT`")
    public double getLat() {
        return this.lat;
    }

    public void setLat(double lat) {
        this.lat = lat;
    }

    public Localisation() {

    }

    public Localisation(double lon, double lat) {
        this.setLon(lon);
        this.setLat(lat);
    }
}

当我运行将Vehicule持久存储到数据库中的测试时，我收到以下错误：

org.hibernate.AnnotationException: Unknown mappedBy in: com.organisme.model.localisation.Localisation.ressourceMaterielle, referenced property unknown: com.organisme.model.ressource.RessourceMaterielle.localisation

有没有解决方案？

问候。

[Hibernate] [JPA]未知的mappedBy ..引用属性未知：

0 个答案: