Pour expliquer mon problème, j'ai créé ce projet simple avec deux tables: item et order1 (avec l'item ayant orderId comme Foreign Key).Hibernate JPA cascade delete issue
Maintenant, quand j'essaye de supprimer une rangée de la table de commande, j'obtiens l'erreur disant que l'identifiant particulier de commande est lié avec quelques articles dans la table d'article. Donc, ce que je fais est d'itérer sur tous les objets item (en utilisant le chargement 'Eager'), et d'appeler destroy() pour chacun d'entre eux. Et après avoir supprimé tous les éléments, j'appelle order.destroy(). Mais maintenant, je reçois l'erreur suivante:
Exception in thread "main" javax.persistence.RollbackException: Error while commiting the transaction
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:71)
at com.sourind.test.testorm.controller.ItemJpaController.destroy(ItemJpaController.java:112)
at com.sourind.test.testorm.App.main(App.java:31)
Caused by: org.hibernate.ObjectDeletedException: deleted entity passed to persist: [com.sourind.test.testorm.entity.Item#<null>]
J'utilise Hibernate (JPA 2.0). Toute aide dans ce domaine serait grandement appréciée.
Pour référence, je copie les classes d'entités créées par NetBeans:
@Entity
@Table(name = "item", catalog = "test", schema = "")
@NamedQueries({
@NamedQuery(name = "Item.findAll", query = "SELECT i FROM Item i"),
@NamedQuery(name = "Item.findById", query = "SELECT i FROM Item i WHERE i.id = :id"),
@NamedQuery(name = "Item.findByName", query = "SELECT i FROM Item i WHERE i.name = :name")})
public class Item implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "id")
private Integer id;
@Basic(optional = false)
@Column(name = "name")
private String name;
@JoinColumn(name = "orderId", referencedColumnName = "id")
@ManyToOne(optional = false)
private Order1 order1;
public Item() {
}
public Item(Integer id) {
this.id = id;
}
public Item(Integer id, String name) {
this.id = id;
this.name = name;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Order1 getOrder1() {
return order1;
}
public void setOrder1(Order1 order1) {
this.order1 = order1;
}
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof Item)) {
return false;
}
Item other = (Item) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "com.sourind.test.testorm.entity.Item[id=" + id + "]";
}
}
Et la classe ORDER1:
@Entity
@Table(name = "order", catalog = "test", schema = "")
@NamedQueries({
@NamedQuery(name = "Order1.findAll", query = "SELECT o FROM Order1 o"),
@NamedQuery(name = "Order1.findById", query = "SELECT o FROM Order1 o WHERE o.id = :id"),
@NamedQuery(name = "Order1.findByOrderDate", query = "SELECT o FROM Order1 o WHERE o.orderDate = :orderDate")})
public class Order1 implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "id")
private Integer id;
@Basic(optional = false)
@Column(name = "orderDate")
@Temporal(TemporalType.TIMESTAMP)
private Date orderDate;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "order1", fetch=FetchType.EAGER)
private List<Item> itemList;
public Order1() {
}
public Order1(Integer id) {
this.id = id;
}
public Order1(Integer id, Date orderDate) {
this.id = id;
this.orderDate = orderDate;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Date getOrderDate() {
return orderDate;
}
public void setOrderDate(Date orderDate) {
this.orderDate = orderDate;
}
public List<Item> getItemList() {
return itemList;
}
public void setItemList(List<Item> itemList) {
this.itemList = itemList;
}
@Override
public int hashCode() {
int hash = 0;
hash += (id != null ? id.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof Order1)) {
return false;
}
Order1 other = (Order1) object;
if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
return false;
}
return true;
}
@Override
public String toString() {
return "com.sourind.test.testorm.entity.Order1[id=" + id + "]";
}
}
Merci à l'avance, Souri
Pouvez-vous s'il vous plaît poster le code de la méthode ItemJpaController # destroy()? –