libtracker-miner, libtracker-sparql: Added introspection examples

Miner and Async query are not working as expected yet, but the code
should be correct.

1 files changed, 30 insertions, 0 deletions

diff --git a/examples/introspection/python/all-async.py b/examples/introspection/python/all-async.py
new file mode 100755
index 000000000..70a3b2b1f
--- /dev/null
+++ b/examples/introspection/python/all-async.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+import gi
+from gi.repository import Tracker, GObject
+
+
+def results_ready_cb (obj, result, user_data):
+    cursor = obj.query_finish (result)
+
+    # This can also be done asynchronously
+    while (cursor.next (None)):
+        print cursor.get_string (0)
+
+    user_data.quit ()
+
+def connection_ready_cb (object, result, user_data):
+    assert user_data
+    conn = Tracker.SparqlConnection.get_finish (result)
+
+    conn.query_async ("SELECT ?u WHERE { ?u a nie:InformationElement. }",
+                      None,
+                      results_ready_cb,
+                      user_data)
+
+
+if __name__ == "__main__":
+    loop = GObject.MainLoop ()
+
+    Tracker.SparqlConnection.get_async (None, connection_ready_cb, loop)
+
+    loop.run ()