if (sourceField == null)
throw error(_field, L.l("'{1}' is an unknown column in '{0}' for @ManyToOne(mappedBy={1}).",
targetType.getName(),
mappedBy));
OneToManyField oneToMany;
oneToMany = new OneToManyField(_sourceType, _fieldName, getCascade());
oneToMany.setSourceField(sourceField);
oneToMany.setOrderBy(_orderByFields, _orderByAscending);
oneToMany.setLazy(isFetchLazy());
/*
if (! _annotationCfg.isNull()) {
String key = mapKeyAnn.name();