onetomany - mapping hibernate annotation example

org.hibernate.MappingException: no se pudo determinar el tipo para: java.util.Set, en la tabla: USUARIOS, para las columnas:

Question

Tengo un problema que Hibernate no puede determinar el tipo de Set en la tabla USERS. Estoy tratando de crear una clave externa de la tabla INVOICES a través de la relación de uno a muchos. Un usuario puede generar muchas facturas. Mi User.java se da a continuación.

@Entity
@Table(name="USERS")
public class User {
@Id
@Column(name="User_Id",nullable=false)
@GeneratedValue(strategy=GenerationType.AUTO)
private Integer user_id;
@Column(name="NAME")
private String name;
@Column(name="Address")
private String address;
@Column(name="Designation")
private String designation;
private Set<Invoice> invoices;
/*@OneToMany
@JoinColumn(name="Rec_Invoice_ID", nullable=false)
private Set<RecurringInvoice> recurring_invoices;*/

Intento usar INVOICE-ID como clave externa en la tabla USERS. Estoy siguiendo las instrucciones dadas aquí Hibernate: Anotación uno a muchos (clave externa)

 @OneToMany
@JoinColumn(name="INVOICE_ID", nullable=false)
public Set<Invoice> getInvoices() {
return invoices;
}
public void setInvoices(Set<Invoice> invoices) {
this.invoices = invoices;
}
/* public Set<RecurringInvoice> getRecurring_invoices() {
return recurring_invoices;
}
public void setRecurring_invoices(Set<RecurringInvoice> recurring_invoices) {
this.recurring_invoices = recurring_invoices;
}
*/
// Getters and Setters
public Integer getUser_id() {
return user_id;
}
public void setUser_id(Integer user_id) {
this.user_id = user_id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getDesignation() {
return designation;
}
public void setDesignation(String designation) {
this.designation = designation;
}
}

My Invoice.java se da a continuación.

@Entity
@Table(name="INVOICES")
public class Invoice {
private Integer invoice_id;
@Column(name="Date_Created", nullable=false)
private Timestamp dateCreated;
@Column(name="DESCRIPTION")
private String description;
@Column(name="Total_Amount")
private Double totalAmount;
@Column(name="Tax_Amount")
private Double taxAmount;
@Column(name="Due_Date")
private Timestamp dueDate;
@Column(name="deleted")
private boolean deleted;
private InvoiceItemsDetails invoiceItemsDetails;
private Client client;
@OneToOne
@JoinColumn(name="ID", nullable=false)
public Client getClient() {
return client;
}
public void setClient(Client client) {
this.client = client;
}
public Date getDueDate() {
return dueDate;
}
public void setDueDate(Timestamp dueDate) {
this.dueDate = dueDate;
}
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name="INVOICE_ID", nullable=false, insertable=false,updatable=false)
public Integer getInvoice_id() {
return invoice_id;
}
public void setInvoice_id(Integer invoice_id) {
this.invoice_id = invoice_id;
}
public Date getDateCreated() {
return dateCreated;
}
public void setDateCreated(Timestamp dateCreated) {
this.dateCreated = dateCreated;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Double getTotalAmount() {
return totalAmount;
}
public void setTotalAmount(Double totalAmount) {
this.totalAmount = totalAmount;
}
public Double getTaxAmount() {
return taxAmount;
}
public void setTaxAmount(Double taxAmount) {
this.taxAmount = taxAmount;
}
public boolean isDeleted() {
return deleted;
}
public void setDeleted(boolean deleted) {
this.deleted = deleted;
}
@OneToOne
@JoinColumn(name="Invoice_Item_Detail_id", nullable=false)
public InvoiceItemsDetails getInvoiceItemsDetails() {
return invoiceItemsDetails;
}
public void setInvoiceItemsDetails(InvoiceItemsDetails invoiceItemsDetails) {
this.invoiceItemsDetails = invoiceItemsDetails;
}
}

Answer 1

Si mal no recuerdo, Hibernate no te permite mezclar y combinar anotaciones junto con field / getter. Si su anotación @Id se establece en un campo, todas sus asignaciones deben seguir los campos. Intente mover @OneToMany @JoinColumn(name="INVOICE_ID", nullable=false) de getInvoices() a private Set<Invoice> invoices; Este patrón también debe aplicarse a su clase de Invoice