--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contentstorage/caclient/s60/inc/caobserver.h	Fri Apr 30 15:22:08 2010 +0300
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ *  Description : Content Arsenal client session
+ *
+ */
+
+#ifndef CAOBSERVER_H_
+#define CAOBSERVER_H_
+
+#include <QObject>
+
+#include "cadef.h"
+#include "cadefs.h"
+
+
+class CCaInnerEntry;
+class CaEntry;
+
+/**
+ *  IDataObserver
+ *
+ */
+class IDataObserver
+{
+public:
+    /**
+     * Method invoked when entry is changed.
+     * @param entryId entry id.
+     * @param changeType change type.
+     */
+    virtual void entryChanged(TInt entryId,
+                              TChangeType changeType) const = 0;
+
+    /**
+     * Method invoked when entry is changed.
+     * @param entry entry.
+     * @param changeType change type.
+     */
+    virtual void entryChanged(const CCaInnerEntry &entry,
+                              TChangeType changeType) const = 0;
+
+    /**
+     * Method invoked when entry was changed.
+     * @param entryId entry id.
+     */
+    virtual void entryTouched(TInt id) const = 0;
+
+    /**
+     * Method invoked when entry was changed.
+     * @param groupId group id.
+     */
+    virtual void groupContentChanged(TInt groupId) const = 0;
+};
+
+
+
+class CaObserver: public QObject, public IDataObserver
+{
+    Q_OBJECT
+public:
+    /**
+     * Constructor.
+     * @param parent pointer to parent. Defaults to NULL.
+     */
+    CaObserver(QObject *parent = 0);
+
+    /**
+     * Destructor.
+     */
+    ~CaObserver();
+    
+    /**
+     * Method invoked when entry is changed.
+     * @param entryId entry id.
+     * @param changeType change type.
+     */
+    void entryChanged(TInt entryId,
+                              TChangeType changeType) const;
+
+    /**
+     * Method invoked when entry is changed.
+     * @param entry entry.
+     * @param changeType change type.
+     */
+    void entryChanged(const CCaInnerEntry &entry,
+                              TChangeType changeType) const;
+
+    /**
+     * Method invoked when entry was changed.
+     * @param entryId entry id.
+     */
+    void entryTouched(TInt id) const ;
+
+    /**
+     * Method invoked when entry was changed.
+     * @param groupId group id.
+     */
+    void groupContentChanged(TInt groupId) const;
+
+signals:
+
+    void signalEntryChanged(int entryId, ChangeType changeType) const;
+    void signalEntryChanged(const CaEntry &entry,
+                            ChangeType changeType) const;
+    void signalEntryTouched(int id) const;
+    void signalGroupContentChanged(int groupId) const;
+};
+
+
+#endif /* CAOBSERVER_H_ */