--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/appinstaller/AppinstUi/Daemon/Inc/previouslyInstalledAppsCache.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,78 @@
+/*
+* Copyright (c) 2006 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: 
+*
+*/
+
+
+#ifndef _PREVIOUSLYINSTALLEDAPPSCACHE_H
+#define _PREVIOUSLYINSTALLEDAPPSCACHE_H
+#include <e32base.h>
+#include <e32cmn.h>
+
+// @released
+// @publishedPartner
+
+//class RFs;
+// It is assumed there is only ever ONE instance of this class
+class CPreviouslyInstalledAppsCache : public CBase
+	{
+public:
+	static CPreviouslyInstalledAppsCache *NewL();
+	~CPreviouslyInstalledAppsCache();
+
+	/**
+	 * Read the cache from disk 
+	 *
+	 * nb. Cache file absense is not counted as an error.
+	 */
+	void InitFromCacheFileL();
+
+	/**
+	 * Query the SIS registry and make sure ALL listed packages (not
+	 * augmentations) are in our cache. Does not flush to disk
+	 *
+	 * This needs ReadUserData
+	 */
+	void UpdateAllL();
+
+	/**
+	 * Query the SIS registry to check if the specified package is
+	 * registered add it to the cache.  Does not flush to disk
+	 *
+	 * This does not need any capabilities.
+	 */
+	void UpdateAddL(TUid aUid);
+
+	
+	/**
+	 * Query if the specified package has ever been cached as installed.
+	 *
+	 * @param UID of package to query
+	 * @retval TBool ETrue if previously cached as installed
+	 */
+	TBool HasBeenPreviouslyInstalled(TUid aPackageId) const;
+
+	/**
+	 * Flush cache to disk.
+	 */
+	void FlushToDiskL();
+private:
+	CPreviouslyInstalledAppsCache();
+	void ConstructL();
+	RArray<TUid> iPrevPkgUids;
+	RFs iFs;
+	};
+
+#endif