Should Hibernate be able to handle overlapping foreign keys?

Question

I have a table that has two foreign keys to two different tables with both foreign keys sharing one column:

CREATE TABLE ZipAreas
(
  countr         


        

Answer 1

There is a way to bypass the validation and get it to work, thus indicating the column is a "@JoinColumnsOrFormulas" then put the solution:

Error:

@ManyToOne
@JoinColumns(value = {
    @JoinColumn(name = "country_code", referencedColumnName = "country_code"), 
    @JoinColumn(name = "zip_code", referencedColumnName = "code")})
private Zip zip = null;

@ManyToOne
@JoinColumns(value = {
    @JoinColumn(name = "country_code", referencedColumnName = "country_code", insertable = false, updatable = false),
    @JoinColumn(name = "state_code", referencedColumnName = "state_code"), 
    @JoinColumn(name = "city_name", referencedColumnName = "name")})
private City city = null;

OK:

@ManyToOne
@JoinColumns(value = {
    @JoinColumn(name = "country_code", referencedColumnName = "country_code"), 
    @JoinColumn(name = "zip_code", referencedColumnName = "code")})
private Zip zip = null;

@ManyToOne
@JoinColumnsOrFormulas(value = {
    @JoinColumnOrFormula(formula = @JoinFormula(value = "country_code", referencedColumnName = "country_code")),
    @JoinColumnOrFormula(column = @JoinColumn(name = "state_code", referencedColumnName = "state_code")),
    @JoinColumnOrFormula(column = @JoinColumn(name = "city_name", referencedColumnName = "name"))
})
private City city = null;

Regards,