core: Add general signals for objects

diff --git a/src/rygel/rygel-media-db.vala b/src/rygel/rygel-media-db.vala
index 0d1165f..4778848 100644 (file)
--- a/src/rygel/rygel-media-db.vala
+++ b/src/rygel/rygel-media-db.vala
@@ -343,6 +343,10 @@ public class Rygel.MediaDB : Object {
         }
     }
 
+    public signal void object_added (string object_id);
+    public signal void object_removed (string object_id);
+    public signal void object_updated (string object_id);
+
     public signal void item_deleted (string item_id);
     public signal void item_added (string item_id);
     public signal void item_updated (string item_id);