1 files changed, 20 insertions, 0 deletions
diff --git a/modules/monitoring/library/Monitoring/Hook/DataviewExtensionHook.php b/modules/monitoring/library/Monitoring/Hook/DataviewExtensionHook.php
new file mode 100644
index 0000000..24b97c5
--- /dev/null
+++ b/modules/monitoring/library/Monitoring/Hook/DataviewExtensionHook.php
@@ -0,0 +1,20 @@
+<?php
+/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Module\Monitoring\Hook;
+
+abstract class DataviewExtensionHook
+{
+    public function getAdditionalQueryColumns($queryName)
+    {
+        $cols = $this->provideAdditionalQueryColumns($queryName);
+
+        if (! is_array($cols)) {
+            return array();
+        }
+
+        return $cols;
+    }
+
+    abstract public function provideAdditionalQueryColumns($queryName);
+}