epoc32/include/logclientchangeobserver.h
branchSymbian2
changeset 2 2fe1408b6811
parent 0 061f57f2323e
child 4 837f303aceeb
--- a/epoc32/include/logclientchangeobserver.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/logclientchangeobserver.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,68 @@
-logclientchangeobserver.h
+// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+// which accompanies this distribution, and is available
+// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef __LOGCLIENTCHANGEOBSERVER_H__
+#define __LOGCLIENTCHANGEOBSERVER_H__
+
+// System includes
+#include <logwrap.h>
+
+/**
+Constants
+@internalComponent
+*/
+const TUid KLogClientChangeEventLogCleared = { 0x101F8C4F };
+const TUid KLogClientChangeEventRefreshView = { 0x1020601B }; 
+
+/** 
+This class allows a client of the log engine to observe specific change 
+events within a given view.
+@publishedAll 
+@released
+*/
+class MLogClientChangeObserver
+	{
+public:
+	/** Handle a global change within the logs database
+	
+	This method is called when a generic event occurs within the log database. 
+	Such events are	not specific to a view (see MLogViewChangeObserver for view 
+	specific events).
+	
+	@param aChangeType The uid corresponding to the type of event which 
+	occurred.
+	@param aChangeParam1 A context-specific change paramater which can be 
+	interpreted	based on the change type.
+	@param aChangeParam2 A context-specific change paramater which can be 
+	interpreted based on the change type.
+	@param aChangeParam3 A context-specific change paramater which can be 
+	interpreted	based on the change type.
+	
+	A list of change types and their associated parameters follows:
+	
+	KLogClientChangeEventLogCleared - no parameters. This event occurs when 
+	the log database is cleared.	 
+	KLogClientChangeEventRefreshView - no parameters. This event occurs when 
+	the client needs to refresh their view. For example, this occurs after the
+	log database has been restored from a backup. */
+	virtual void HandleLogClientChangeEventL(TUid aChangeType, TInt aChangeParam1, TInt aChangeParam2, TInt aChangeParam3) = 0;
+
+private:
+	IMPORT_C virtual void MLogClientChangeObserver_Reserved1();
+	IMPORT_C virtual void MLogClientChangeObserver_Reserved2();
+	};
+
+
+#endif