code: public void setTargetableActionCommandExecutor(String commandId, ActionCommandExecutor executor) {
          
          Assert.notNull(commandId, "commandId");
          
          TargetableActionCommand command 
                  = (TargetableActionCommand) getCommand(commandId, TargetableActionCommand.class);
              
          if (command != null) {
              command.setCommandExecutor(executor);
          }
          
      }
docs: {@inheritDoc}