[tracker/libtracker-sparql: 22/55] libtracker-bus: Added for dbus implementation

[Jürg Billeter <juergbi src gnome org>]

commit 0ade496a0302f9fe37f21a7819e9dc80f005f822
Author: Martyn Russell <martyn lanedo com>
Date:   Wed Jul 14 11:11:05 2010 +0100

    libtracker-bus: Added for dbus implementation
    
    Also updated query method in abstract class to return optional Cursor

 src/libtracker-sparql/tracker-connection.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/libtracker-sparql/tracker-connection.vala b/src/libtracker-sparql/tracker-connection.vala
index 435ffcf..cdc1446 100644
--- a/src/libtracker-sparql/tracker-connection.vala
+++ b/src/libtracker-sparql/tracker-connection.vala
@@ -19,8 +19,8 @@
 
 public abstract class Tracker.Sparql.Connection : Object {
 	// Query
-	public abstract Cursor query (string sparql, Cancellable? cancellable = null) throws GLib.Error;
-	public async abstract Cursor query_async (string sparql, Cancellable? cancellable = null) throws GLib.Error;
+	public abstract Cursor? query (string sparql, Cancellable? cancellable = null) throws GLib.Error;
+	public async abstract Cursor? query_async (string sparql, Cancellable? cancellable = null) throws GLib.Error;
 
 	// Update
 	public virtual void update (string sparql, Cancellable? cancellable = null) throws GLib.Error {