}
TypeId typeId = columnDescriptor.getType().getTypeId();
// Don't allow a column to be created on a non-orderable type
ClassFactory cf = lcc.getLanguageConnectionFactory().getClassFactory();
boolean isIndexable = typeId.orderable(cf);
if (isIndexable && typeId.userType()) {
String userClass = typeId.getCorrespondingJavaTypeName();
// Don't allow indexes to be created on classes that
// are loaded from the database. This is because recovery
// won't be able to see the class and it will need it to
// run the compare method.
try {
if (cf.isApplicationClass(cf.loadApplicationClass(userClass)))
isIndexable = false;
} catch (ClassNotFoundException cnfe) {
// shouldn't happen as we just check the class is orderable
isIndexable = false;
}