Make LBFactorySingle external LB methods throw exceptions

There are no external clusters with this LB factory class,
so calling these methods makes no sense.

Change-Id: I63a9c6c76ba036980cfaab3ef03574295e46c6bf

diff --git a/includes/libs/rdbms/lbfactory/LBFactorySingle.php b/includes/libs/rdbms/lbfactory/LBFactorySingle.php
index e116888..9424614 100644 (file)
--- a/includes/libs/rdbms/lbfactory/LBFactorySingle.php
+++ b/includes/libs/rdbms/lbfactory/LBFactorySingle.php
@@ -70,20 +70,12 @@ class LBFactorySingle extends LBFactory {
                return $this->lb;
        }
 
-       /**
-        * @param string $cluster External storage cluster name (unused)
-        * @return LoadBalancerSingle
-        */
        public function newExternalLB( $cluster ) {
-               return $this->lb;
+               throw new BadMethodCallException( "Method is not supported." );
        }
 
-       /**
-        * @param string $cluster External storage cluster name (unused)
-        * @return LoadBalancerSingle
-        */
        public function getExternalLB( $cluster ) {
-               return $this->lb;
+               throw new BadMethodCallException( "Method is not supported." );
        }
 
        /**