[eclipselink-users] Using @Converter with parameterized type fails

[Andreas Joseph Krogh <andreak@xxxxxxxxxxxx>]

Hi.

 

I'm trying to use converters for a basic-type which is a parameterized type. I have borrowed Functional Java's Option and made it Serializable (for it to be mappeable to a JPA-field) and have them mapped to two different fields like this:

 

@Column(name = "color")
CustomOption<String> color = CustomOption.none();

@Column(name = "milage")
CustomOption<Long> milage = CustomOption.none();

 

Then I have two converters:

 

@Converter(autoApply = true)
public class OptionalLongConverter implements AttributeConverter<CustomOption<Long>, Long> {
@Converter(autoApply = true)
public class OptionalStringConverter implements AttributeConverter<CustomOption<String>, String> {

But EL fails to map them correctly and generates a column of type BIGINT for both:

[EL Fine]: sql: 2013-07-04 17:12:40.507--ServerSession(2079734280)--Connection(550612079)--Thread(Thread[main,5,main])--CREATE TABLE car (id BIGINT NOT NULL, color BIGINT, created TIMESTAMP NOT NULL, milage BIGINT, model VARCHAR(255) NOT NULL, owner_name VARCHAR(255), data_id BIGINT, PRIMARY KEY (id))

 

 

If I map the attributes explicitly:

@Column(name = "color")
@Convert(converter = OptionalStringConverter.class)
CustomOption<String> color = CustomOption.none();

@Column(name = "milage")
@Convert(converter = OptionalLongConverter.class)
CustomOption<Long> milage = CustomOption.none();

It works.

 

An example of it failing is here: https://github.com/andreak/hibernatetest/tree/parameterized-basic-types-fail-auto-converter

 

 

Is this by design or should the auto-convert stuff also work for parameterized types?

 

--
Andreas Joseph Krogh <andreak@xxxxxxxxxxxx>      mob: +47 909 56 963
Senior Software Developer / CTO - OfficeNet AS - http://www.officenet.no
Public key: http://home.officenet.no/~andreak/public_key.asc