अन्य सभी पोस्ट के बावजूद, मैं MacOSX, NetBeans 7.2 पर GlassFish के साथ इस त्रुटि का हल नहीं ढूंढ सकता।
Here the error :
SEVERE: Exception while invoking class org.glassfish.persistence.jpa.JPADeployer
prepare method
SEVERE: Exception while preparing the app
SEVERE: [PersistenceUnit: supmarket] Unable to build EntityManagerFactory
...
Caused by: org.hibernate.MappingException: Repeated column in mapping for entity:
com.supmarket.entity.Sale column: customerId
(should be mapped with insert="false" update="false")यहाँ कोड है:
Sale.java
@Entity
public class Sale {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@Column(nullable=false)
private Long idFromAgency;
private float amountSold;
private String agency;
@Temporal(javax.persistence.TemporalType.DATE)
private Date createdate;
@Column(nullable=false)
private Long productId;
@Column(nullable=false)
private Long customerId;
@ManyToOne(optional=false)
@JoinColumn(name="productId",referencedColumnName="id_product")
private Product product;
@ManyToOne(optional=false)
@JoinColumn(name="customerId",referencedColumnName="id_customer")
private Customer customer;
public void Sale(){}
public void Sale(Long idFromAgency, float amountSold, String agency
, Date createDate, Long productId, Long customerId){
...
}
// then getters/setters
}Customer.java
@Entity
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name="id_customer")
private Long id_customer;
@Column(nullable=false)
private Long idFromAgency;
private String gender,
maritalState,
firstname,
lastname,
incomeLevel;
@OneToMany(mappedBy="customer",targetEntity=Sale.class, fetch=FetchType.EAGER)
private Collection sales;
public void Customer(){}
public void Customer(Long idFromAgency, String gender, String maritalState,
String firstname, String lastname, String incomeLevel) {
...
}
}Product.java
public class Product {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name="id_product")
private Long id_product;
@Column(nullable=false)
private Long idFromAgency;
private String name;
@OneToMany(mappedBy="product",targetEntity=Sale.class, fetch=FetchType.EAGER)
private Collection sales;
//constructors + getters +setters
}