identifying which jpa mapping between customer and currentPaymentMethod
I have written a Customer class which has two fields.A Set<Payment> payments
and a selectedPayment
.A customer can have many credit cards and can select one of them for current purchase.The various credit cards are modelled by the payments field.
@Entity
class Customer{
...
@OneToMany( cascade=CascadeType.ALL,orphanRemoval=true)
Set<Payment> payments;
@OneToOne( cascade=CascadeType.ALL)
Payment selectedPayment;
}
@Entity
class Payment{
String creditCardNumber;
String creditCardType;
...
}开发者_JAVA技巧
Are these the correct mappings? In the db table ,a customer can only be associated with a single Payment record through selectedPayment field
.That is why I made it one-to-one.
Are there any pitfalls I haven't anticipated? Please advise.
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