protected static boolean verifyField(
AbstractSession session, DatabaseField field, ClassDescriptor descriptor) {
boolean ok = true;
if (field.equals(descriptor.getSequenceNumberField())) {
ok = false;
session
.getIntegrityChecker()
.handleError(
DescriptorException.returningPolicyFieldNotSupported(field.getName(), descriptor));
} else if (descriptor.hasInheritance()
&& field.equals(descriptor.getInheritancePolicy().getClassIndicatorField())) {
ok = false;
session
.getIntegrityChecker()
.handleError(
DescriptorException.returningPolicyFieldNotSupported(field.getName(), descriptor));
} else if (descriptor.usesOptimisticLocking()) {
OptimisticLockingPolicy optimisticLockingPolicy = descriptor.getOptimisticLockingPolicy();
if (optimisticLockingPolicy instanceof VersionLockingPolicy) {
VersionLockingPolicy versionLockingPolicy = (VersionLockingPolicy) optimisticLockingPolicy;
if (field.equals(versionLockingPolicy.getWriteLockField())) {
ok = false;
session
.getIntegrityChecker()
.handleError(
DescriptorException.returningPolicyFieldNotSupported(
field.getName(), descriptor));
}
}
}
return ok;
}
/**
* INTERNAL: Return the classification for the field contained in the mapping. This is used to
* convert the row value to a consistent java value.
*/
@Override
public Class getFieldClassification(DatabaseField fieldToClassify) {
if ((getTypeField() != null) && (fieldToClassify.equals(getTypeField()))) {
return getTypeField().getType();
}
String queryKey = (String) getSourceToTargetQueryKeyNames().get(fieldToClassify);
if (queryKey == null) {
return null;
}
// Search any of the implementor descriptors for a mapping for the query-key.
Iterator iterator =
getReferenceDescriptor().getInterfacePolicy().getChildDescriptors().iterator();
if (iterator.hasNext()) {
ClassDescriptor firstChild = (ClassDescriptor) iterator.next();
DatabaseMapping mapping = firstChild.getObjectBuilder().getMappingForAttributeName(queryKey);
if ((mapping != null) && (mapping.isDirectToFieldMapping())) {
return ((AbstractDirectMapping) mapping).getAttributeClassification();
}
QueryKey targetQueryKey = firstChild.getQueryKeyNamed(queryKey);
if ((targetQueryKey != null) && (targetQueryKey.isDirectQueryKey())) {
return firstChild
.getObjectBuilder()
.getFieldClassification(((DirectQueryKey) targetQueryKey).getField());
}
}
return null;
}
