Hi all,
in the advance tutorial description of the BasicType states:
"BasicType is typically used for fundamental types, for example different
quantities such as Money,
or range of values."
So, the emphasis was on "is typically used for fundamental types," which
implies that i can use references to, lets say Entities in the BasicType if
i would like to. Or not?
I took library example and modiefed Country to be Entity and not Enum. So
all of my Countries are stored in Database and when a new Country popup i do
not need to modify code, compile, distribute, etc. just need to insert new
record in database.
So my Person module after this change looks like this:
Module person {
Service PersonService {
findPersonByName => PersonRepository.findPersonByName;
}
Entity Person {
gap
scaffold
Date birthDate past
- @Gender sex !changeable
- @Ssn ssn key
- @PersonName name
Repository PersonRepository {
List<@Person> findPersonByName(String name) => AccessObject;
save;
save(Collection<@Person> entities);
findByQuery;
findByExample;
findByKeys;
}
}
BasicType Ssn {
String number key length="20"
- @Country country key
}
BasicType PersonName {
String first
String last
}
enum Gender {
FEMALE("F"),
MALE("M")
}
Entity Country {
scaffold
String code key
String name
int numeric
Repository CountryRepository {
@Country findCountryByCode(String code) throws
CountryNotFoundException
=> findByKey;
findById;
findAll;
save;
delete;
countAll;
}
}
}
}
However, when i generate sources now, in the the Ssn java class I see
following definition for the Country object:
@Transient
@NotNull
private Country country;
So, it is declared as Tranisent field!
When i looked at the generated PersonBase java class i found another
surprise, definition of the embeded object Ssn was as follows:
@Embedded
@AttributeOverrides({...@attributeoverride(name = "number",column =
@Column(name = "SSN_NUMBER",nullable = true,length = 20)
)
, })
@NotNull
private Ssn ssn;
So, no reference to country at all?
But, Person java class stated following (i first deleted old class so the
new one was generated to reflect changes in the model):
@Entity
@Table(name = "PERSON", uniqueConstraints = @UniqueConstraint(columnNames =
{
"SSN_NUMBER", "SSN_COUNTRY"}
)
)
public class Person extends PersonBase {
private static final long serialVersionUID = 1L;
protected Person() {
}
public Person(Gender sex, Ssn ssn) {
super(sex, ssn);
}
}
However, field with name SSN_COUNTRY is nowhere defined? No Hibernate
annotation references this field.
Then, i modifed sculptor-generator.properties and declared db.product=mysql
to see what would be the definition of the table. And as I expected the
PERSON table does not contain any field which would store reference to
COUNTRY table, and no FOREIGN KEY definition exists anywhere. Although,
funnily, invalid unique constraint is created!
CREATE TABLE PERSON (
ID BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
BIRTHDATE DATE NOT NULL,
CREATEDDATE TIMESTAMP,
CREATEDBY VARCHAR(50),
LASTUPDATED TIMESTAMP,
LASTUPDATEDBY VARCHAR(50),
VERSION BIGINT NOT NULL,
SSN_NUMBER VARCHAR(20) NOT NULL,
NAME_FIRST VARCHAR(100) NOT NULL,
NAME_LAST VARCHAR(100) NOT NULL,
SEX VARCHAR(100) NOT NULL,
CONSTRAINT UNIQUE (SSN_NUMBER, SSN_COUNTRY)
);
So, as far as i can see, it seems that references to the Entities can not be
used in the BasicTypes, is this correct or not?
Huh, i hope i have been clear enough.
best
Domagoj
No mention of reference to COUNTRY?
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