Re: [eclipselink-users] Another converter-bug

[Guy Pelletier <guy.pelletier@xxxxxxxxxx>]

One thing to try would be to add a descriptor customizer. In it you would set a new converter on the mapping with the correct field/attribute classfications.

e.g. mapping.setConverter(new ConverterClass(CustomOption<DateTime>.class.getName(), false, Timestamp.class.getName(), false));

Information on configuring a descriptor customizer is here:

http://wiki.eclipse.org/Configuring_a_Descriptor_%28ELUG%29#Configuring_a_Descriptor_Customizer_Class

Cheers,
Guy

On 05/07/2013 6:01 AM, Andreas Joseph Krogh wrote:

Hi.

 

I have this converter:

@Converter
public class OptionalJodaDateTimeConverter implements AttributeConverter<CustomOption<DateTime>, Timestamp> {

        @Override
        public Timestamp convertToDatabaseColumn(CustomOption<DateTime> attribute) {
                if (attribute.isNone()) return null;
                else return new Timestamp(attribute.some().getMillis());
        }

        @Override
        public CustomOption<DateTime> convertToEntityAttribute(Timestamp dbData) {
                if (dbData == null) return CustomOption.none();
                else return CustomOption.some(new DateTime(dbData.getTime()));
        }
}

And this mapping:

 

@Entity
@Table(name = "car")
public class Car {

        public Car() {
        }

        public Car(String model, DateTime modified) {
                this.model = model;
                this.modified = CustomOption.some(modified);
        }

        @Id
        @Column(name = "model", nullable = false)
        private String model = null;

        @Column(name = "modified")
        @Convert(converter = OptionalJodaDateTimeConverter.class)
        private CustomOption<DateTime> modified = CustomOption.none();

        public String getModel() {
                return model;
        }

        public void setModel(String model) {
                this.model = model;
        }

        public CustomOption<DateTime> getModified() {
                return modified;
        }

        public void setModified(CustomOption<DateTime> modified) {
                this.modified = modified;
        }

}

And EL fails generating the correct column-type:

CREATE TABLE car (model VARCHAR(255) NOT NULL, modified VARCHAR(255), PRIMARY KEY (model))

 

And fails at runtime:

 

[EL Warning]: 2013-07-05 11:48:53.517--UnitOfWork(358623257)--Thread(Thread[main,5,main])--Local Exception Stack:
Exception [EclipseLink-3002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.ConversionException
Exception Description: The object [7/5/13 11:48 AM], of class [class java.sql.Timestamp], from mapping [org.eclipse.persistence.mappings.DirectToFieldMapping[modified-->car.modified]] with descriptor [RelationalDescriptor(no.officenet.example.eclipselink.autoconvert.Car --> [DatabaseTable(car)])], could not be converted to [class org.joda.time.DateTime].

 

I've filed a bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=412384 with a complete testcase, just unzip it and run "mvn install".

 

Any work-arounds?

 

Thanks.

 

--
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

_______________________________________________
eclipselink-users mailing list
eclipselink-users@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/eclipselink-users

--

Guy Pelletier

ORACLE Canada, 45 O'Connor Street Suite 400 Ottawa, Ontario Canada K1P 1A4
Oracle is committed to developing practices and products that help protect the environment