IcingaService: use booleans, drop custom renderers

library/Director/Objects/IcingaService.php

@@ -45,6 +45,17 @@ class IcingaService extends IcingaObject
         'zone'             => 'IcingaZone',
     );
 
+    protected $booleans = array(
+        'enable_notifications',
+        'enable_active_checks',
+        'enable_passive_checks',
+        'enable_event_handler',
+        'enable_flapping',
+        'enable_perfdata',
+        'volatile',
+        'use_agent',
+    );
+
     protected $supportsGroups = true;
 
     protected $supportsCustomVars = true;
@@ -88,44 +99,4 @@ class IcingaService extends IcingaObject
     {
         return $this->getResolvedProperty('check_command_id') !== null;
     }
-
-    protected function renderCheck_command_id()
-    {
-        return $this->renderCommandProperty($this->check_command_id);
-    }
-
-    protected function renderEnable_notifications()
-    {
-        return $this->renderBooleanProperty('enable_notifications');
-    }
-
-    protected function renderEnable_active_checks()
-    {
-        return $this->renderBooleanProperty('enable_active_checks');
-    }
-
-    protected function renderEnable_passive_checks()
-    {
-        return $this->renderBooleanProperty('enable_passive_checks');
-    }
-
-    protected function renderEnable_event_handler()
-    {
-        return $this->renderBooleanProperty('enable_event_handler');
-    }
-
-    protected function renderEnable_flapping()
-    {
-        return $this->renderBooleanProperty('enable_flapping');
-    }
-
-    protected function renderEnable_perfdata()
-    {
-        return $this->renderBooleanProperty('enable_perfdata');
-    }
-
-    protected function renderVolatile()
-    {
-        return $this->renderBooleanProperty('volatile');
-    }
 }