@Override
public void resolveToOneAttributeSource(AttributeSourceResolutionContext context) {
if (getNature() != null && owner != null) {
return;
}
if (owner == null) {
owner =
(ToOneAttributeSource)
context.resolveAttributeSource(
associationAttribute().getReferencedEntityType(),
associationAttribute().getMappedBy());
owner.addMappedByAssociationSource(this);
}
if (getNature() == null) {
final Nature nature;
if (MappedAttribute.Nature.MANY_TO_ONE.equals(associationAttribute().getNature())) {
nature = Nature.MANY_TO_ONE;
} else if (MappedAttribute.Nature.ONE_TO_ONE.equals(associationAttribute().getNature())) {
if (owner.getContainingTableName() != null) {
nature = Nature.MANY_TO_ONE;
} else {
nature = Nature.ONE_TO_ONE;
}
} else {
throw new AssertionError(
String.format(
"Wrong attribute nature[%s] for toOne attribute: %s",
associationAttribute().getNature(), associationAttribute().getRole()));
}
setNature(nature);
}
}
@Override
public PluralAttributeElementSource resolvePluralAttributeElementSource(
AttributeSourceResolutionContext context) {
if (elementSource == null) {
// elementSource has not been initialized, so we need to resolve it using the
// association owner.
// Get the owner attribute source that maps the opposite side of the association.
ownerAttributeSource =
context.resolveAttributeSource(
associationAttribute.getReferencedEntityType(), associationAttribute.getMappedBy());
// Initialize resolved entitySource.
elementSource =
determineElementSource(
ownerAttributeSource,
this,
entityClass,
""); // TODO not sure what relativePath should be here
if (!MappedByAssociationSource.class.isInstance(elementSource)) {
throw new AssertionFailure("expected a mappedBy association.");
}
final AssociationSource ownerAssociationSource;
if (ownerAttributeSource.isSingular()) {
ownerAssociationSource = (ToOneAttributeSource) ownerAttributeSource;
} else {
final PluralAttributeSource pluralAttributeSource =
(PluralAttributeSource) ownerAttributeSource;
if (!AssociationSource.class.isInstance(pluralAttributeSource.getElementSource())) {
throw new AssertionFailure("Owner is not an association.");
}
ownerAssociationSource = (AssociationSource) pluralAttributeSource.getElementSource();
}
ownerAssociationSource.addMappedByAssociationSource(
(MappedByAssociationSource) elementSource);
}
return elementSource;
}
