Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [eclipselink-users] Converter not being picked up despite having autoApply=true
Hi Andreas,

Not knowing the full details of the spring package scan tool, I suspect the @Converter class is not being returned from this scan and would explain why it is not being applied by EclipseLink.

Perhaps you could try including a persistence.xml file as a test and make sure the converter is listed there.

<class>JodaDateTimeConverter</class>

Also, if you have debugging capabilities, you could try looking at initPersistenceUnitClasses from org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor. That is where the @Converter would be picked up if found.

Cheers,
Guy
On 04/07/2013 8:21 AM, Andreas Joseph Krogh wrote:
Hi all.
 
I'm still juggeling with my EclipseLink test-project, https://github.com/andreak/hibernatetest, (on my quest for migrating away from Hibernate) and now I'm stuck with @Converter not being picked up. I'm having a Spring-wired environment (no persistence.xml etc.) and my @Converter class for converting joda-time's DateTime is not being picked up.
 
My converter looks like this: 
@Converter(autoApply = true)
public class JodaDateTimeConverter implements AttributeConverter<DateTime, Timestamp> {

        @Override
        public Timestamp convertToDatabaseColumn(DateTime attribute) {
                if (attribute == null) {
                        return null;
                } else {
                        return new Timestamp(attribute.getMillis());
                }
        }

        @Override
        public DateTime convertToEntityAttribute(Timestamp dbData) {
                if (dbData == null) {
                        return null;
                } else {
                        return new DateTime(dbData.getTime());
                }
        }
}
 
Using DERBY as embedded DB, EclipseLink generates the following SQL:
[EL Fine]: sql: 2013-07-04 14:11:24.603--ServerSession(555941420)--Connection(1076476202)--Thread(Thread[main,5,main])--CREATE TABLE car (id BIGINT NOT NULL, created BLOB(2147483647) NOT NULL, model VARCHAR(255) NOT NULL, owner_name VARCHAR(255), data_id BIGINT, PRIMARY KEY (id))
 
Where "created" is of type org.joda.time.DateTime. As you can see EL creates a BLOB for that column, not Timestamp
 
In my real project I have a persistence-unit spread over lots of modules (maven) and have used Spring's "packagesToScan"-attribute of LocalContainerEntityManagerFactoryBean to locate all my entities and building up the PU, thus eliminating the need for maintaining persistence.xml/orm.xml.
<bean id="entityManagerFactory"
          class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="myDataSource"/>
        <property name="packagesToScan" value="no.officenet.test"/>
        <property name="jpaVendorAdapter" ref="jpaVendorAdapter"/>
        <property name="jpaDialect" ref="jpaDialect"/>
        <property name="jpaProperties">
                <props>
                        <prop key="eclipselink.cache.shared.default">false</prop>
                        <prop key="javax.persistence.sharedCache.mode">ENABLE_SELECTIVE</prop>
                </props>
        </property>
</bean>
I'd rather not have to maintain persistence.xml/orm.xml as it becomes a maintainence-nightmare when having lots modules.
 
I have also tried this with PostgreSQL as DB creating the column manually and then EL complains with:
org.springframework.transaction.TransactionSystemException: Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.0.v20130507-3faac2b): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Error converting parameter 0
Error Code: 0
Call: INSERT INTO car (created, model, owner_name, data_id, id) VALUES (?, ?, ?, ?, ?)
    bind => [[B@5c787c2d, Vamonda!, null, 36, 211]
Query: InsertObjectQuery(no.officenet.test.hibernatetest.model.Car@5eb9ec47)
 
Any help is most welcome, 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

--

Oracle
Guy Pelletier

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

Back to the top