interface for receiving db change notifications

mailnews/db/msgdb/public/nsIDBChangeListener.h

@@ -0,0 +1,20 @@
+// change listener interface
+#ifndef _nsIDBChangeListener_h
+#define _nsIDBChangeListener_h
+#include "nsISupports.h"
+
+class nsDBChangeAnnouncer;
+
+#define NS_IDBCHANGELISTENER_IID          \
+{ 0xad0f7f90, 0xbaff, 0x11d2, 0x8d67, 0x00, 0x80, 0x5f, 0x8a, 0x66, 0x17}
+
+
+class nsIDBChangeListener : public nsISupports
+{
+public:
+	NS_IMETHOD OnKeyChange(MessageKey aKeyChanged, int32 aFlags, 
+		nsIDBChangeListener * aInstigator) = 0;
+	NS_IMETHOD OnAnnouncerGoingAway(nsDBChangeAnnouncer * instigator) ;
+};
+
+#endif