/**
 * Checks class descriptors for {@link @RemoveMapping} and {@link RemoveMappings} annotations at the class level
 * and removes any specified mappings from the ClassDescriptor.
 *
 * @param session the current session.
 */
protected void handleRemoveMapping(Session session) {
    Map<Class, ClassDescriptor> descriptors = session.getDescriptors();

    if (descriptors == null || descriptors.isEmpty()) {
        return;
    }

    for (ClassDescriptor classDescriptor : descriptors.values()) {
        List<DatabaseMapping> mappingsToRemove = new ArrayList<DatabaseMapping>();
        List<RemoveMapping> removeMappings = scanForRemoveMappings(classDescriptor);

        for (RemoveMapping removeMapping : removeMappings) {
            if (StringUtils.isBlank(removeMapping.name())) {
                throw DescriptorException.attributeNameNotSpecified();
            }

            DatabaseMapping databaseMapping = classDescriptor.getMappingForAttributeName(removeMapping.name());

            if (databaseMapping == null) {
                throw DescriptorException.mappingForAttributeIsMissing(removeMapping.name(), classDescriptor);
            }

            mappingsToRemove.add(databaseMapping);
        }

        for (DatabaseMapping mappingToRemove : mappingsToRemove) {
            classDescriptor.removeMappingForAttributeName(mappingToRemove.getAttributeName());
        }
    }
}
 

@Override
public void executeEvent(DescriptorEvent event) throws DescriptorException {
    delegate.executeEvent(event);
}