code: static LdapSearcher<LdapEntry, String> createForUsernameIsDn() {
          return new LdapSearcher<LdapEntry, String>() {
  
              @Override
              public LdapEntry search(LdapConnectionHandler connectionHandler, String suppliedName) {
                  return new LdapEntry(suppliedName, suppliedName);
              }
          };
      }
docs: TODO - Maybe make configurable.