Even more decisive you have to put the @Optional annotation on the in-parameter in your interface method.
brg /arvid 2011/3/24 Ronnie Nessa <[email protected]> > You need to put the @Optional annotation on your method parameters. > > Vennlig hilsen > Webstep AS > > Ronnie Nessa | Seniorkonsulent > Tlf: +47 970 69 512 | [email protected] > > > Den 24. mars 2011 kl. 13:17 skrev Dag Blakstad <[email protected]>: > > > Hi! > > > > I have this [pseudocode] that fails > > > > @Mixins(HasMainImageMixin.class) > > public interface HasMainImage { > > > > Attachment mainImage(); > > > > void changedMainImage(Attachment attachment); > > } > > > > public class HasMainImageMixin implements HasMainImage { > > > > interface PrivateState { > > @Optional Association<Attachment> attachment(); > > } > > > > @This PrivateState state; > > > > public void changedMainImage(Attachment attachment) { > > if (attachment == null) { > > state.set(null); > > } > > } > > } > > > > @Mixins(HasMainImage.class) > > public interface TestEntity extends EntityComposite, HasMainImage { > > } > > > > The following test fails > > @Test > > public void testRemoveMainImage() throws Exception { > > try { > > EntityBuilder<TestEntity> testEntityEntityBuilder = > uow.newEntityBuilder(TestEntity.class, "test1"); > > Attachment attachment = createAttachment(); > > entity.changedMainImage(attachment); > > > > entity.changedMainImage(null); > > } finally { > > if (uow.isOpen()) > > uow.discard(); > > } > > } > > > > The error is > > org.qi4j.api.constraint.ConstraintViolationException: Constraint > violation in > 88a8fa8e-6bee-4395-898f-d34fb41560dd-0.no.webstep.retrade.rpm.server.attachment.HasMainImageMixinTest$TestEntity > for method changedMainImage with constraint "not optional(param1)", for > value 'null' > > > > When the association attachment is annotated with @Optional it should be > possible to unset it somehow. Am I missing something, or could it be a bug? > > > > Best Regards, > > Dag > > > > _______________________________________________ > > qi4j-dev mailing list > > [email protected] > > http://lists.ops4j.org/mailman/listinfo/qi4j-dev > > _______________________________________________ > qi4j-dev mailing list > [email protected] > http://lists.ops4j.org/mailman/listinfo/qi4j-dev >
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