diff -r 000000000000 -r 08ec8eefde2f loggingservices/eventlogger/LogServ/inc/LogServView.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/loggingservices/eventlogger/LogServ/inc/LogServView.h	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,282 @@
+// 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 "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 __LOGSERVVIEW_H__
+#define __LOGSERVVIEW_H__
+
+#include <logcli.h>
+#include "LOGQUERY.H"
+#include "LogCliServShared.h"
+#include "LogServBackupObserver.h"
+#include "LogServDatabaseChangeObserver.h"
+#include "LogServDatabaseTransactionInterface.h"
+
+// Classes referenced
+class CLogPackage;
+class CLogServViewLockObserver;
+class CLogServViewChangeManager;
+class MLogServDatabaseTransactionInterface;
+class MLogServBackupInterface;
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////   CLogServViewBase /////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+Base class for the view that the LogEng server can create.
+Implements MLogServBackupObserver and MLogServDatabaseChangeObserver interfaces. 
+
+@see MLogServBackupObserver 
+@see MLogServDatabaseChangeObserver 
+@internalComponent
+*/
+class CLogServViewBase : public CBase, public MLogServBackupObserver, public MLogServDatabaseChangeObserver
+	{
+public:
+	~CLogServViewBase();
+    void RequestChangeNotifications(const RMessage2& aMessage);
+    void RequestChangeNotificationsCancel();
+    void RequestLockStatusChanges(const RMessage2& aMessage);
+    void RequestLockStatusChangesCancel();
+    void RequestChangesL(const RMessage2& aMessage);
+    void SetupL(const RMessage2& aMessage, TLogFilterConstructionType aFilterType);
+    virtual TPtrC GetQueryStringL(const RMessage2& aMessage, TLogFilterConstructionType aFilterType)=0;
+    virtual void RemoveL(const RMessage2& aMessage);
+    virtual void ClearDuplicatesL(const RMessage2& aMessage);
+    virtual void SetFlagsL(const RMessage2& aMessage);
+    inline TLogViewId ViewId() const;
+    TInt Count() const;
+    TLogId At(TInt aIndex) const;
+    inline TBool ViewIsReady() const;
+
+protected:
+	CLogServViewBase(MLogServDatabaseTransactionInterface& aDatabase, 
+	                 MLogServBackupInterface& aBackupInterface, 
+	                 CLogPackage& aPackage, 
+	                 TLogViewType aType, 
+	                 TLogViewId aViewId, 
+	                 const RMessage2& aMessage);
+	                 
+	void ConstructL();
+    static void DestroyList(TAny *aPtr);
+
+private: // FROM MLogServDatabaseChangeObserver
+	void DCOHandleChangeEventsL(const CLogChangeDefinition& aChanges);
+    // FROM MLogServBackupObserver
+	void BOHandleEventL(TLogServBackupEvent aEvent);
+
+	void InitializeColumnsL(RDbRowSet& aRowSet);
+	inline TInt ClientSideCursorPosition() const;
+	//
+	void ResetViewContentsL(RDbRowSet& aRowSet);
+	void PrepareViewContentsL(const TDesC& aSQL);
+	TInt RebuildViewContentsIfNecessary();
+	void DoHandleChangeEventsL(const CLogChangeDefinition& aChanges);
+	void RebuildViewL();
+	TBool IsAllowed(TEventOp aEventOp, TUint8 aEventTypeIndex);
+
+protected:
+	MLogServDatabaseTransactionInterface& iDatabase;
+	CLogPackage& iPackage;
+
+private:
+	MLogServBackupInterface& iBackupInterface;
+	TLogViewType iType;//The type of view that this object represents
+	TLogViewId iViewId;//The id of this view
+	RArray<TLogId> iViewContents;//An array which contains the log ids of all the items in this view
+	TBool          iViewContentsReady;
+	HBufC* iSql;//The SQL filter/condition which is used to build this view
+	TBool iRebuildViewContents;//A flag to indicate that we need to rebuild the view because handling a change notification failed (e.g due to OOM).
+	CLogServViewLockObserver* iLockChangeObserver;//Manages lock change events
+	CLogServViewChangeManager* iChangeManager;//Manages change events for this view
+	const RMessage2& iMessage;//Passed in the constructor by the LogServOperationFactory - used to check security
+	/**
+	Data structure for storage of cached security information
+	@internalComponent
+	*/
+	struct SStandardTypeSecurity 
+		{
+		TUid eventType;
+		TBool readAccess;
+		TBool writeAccess;
+		};
+	RArray<SStandardTypeSecurity> iStandardTypeSecurityCache;
+    static TDbColNo   iIdColNo;
+    static TDbColNo   iTypeColNo;
+    static TDbColNo   iFlagColNo[KLogFlagsCount];
+
+	};
+
+/**
+Returns the id of this view
+*/
+inline TLogViewId CLogServViewBase::ViewId() const
+	{
+	return iViewId;
+	}
+
+/**
+Is the view ready?
+*/
+inline TBool CLogServViewBase::ViewIsReady() const
+	{
+	return (iViewContentsReady && iSql);
+	}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////   CLogServViewLockObserver  ////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+Implements MLogServBackupObserver interface.
+An instance of this class is data member of CLogServViewBase.
+It is used every time when the client side requests notification regarding the view status.
+The view status changes to "locked" during the backup/restore operations.
+
+@see CLogServViewBase
+@see MLogServBackupObserver
+@internalComponent
+*/
+class CLogServViewLockObserver : public CBase, public MLogServBackupObserver
+	{
+public:
+	static CLogServViewLockObserver* NewL(MLogServBackupInterface& aBackupInterface);
+	~CLogServViewLockObserver();
+    void RequestLockStatusChanges(const RMessage2& aMessage);
+    void RequestLockStatusChangesCancel();
+
+private:
+	CLogServViewLockObserver(MLogServBackupInterface& aBackupInterface);
+	void ConstructL();
+    // FROM MLogServBackupObserver
+	void BOHandleEventL(TLogServBackupEvent aEvent);
+
+	inline TBool HaveLockStatusChangePointer() const;
+	void CompleteLockStatusChangeMessage(TInt aCompletionCode);
+
+private:
+	MLogServBackupInterface& iBackupInterface;
+	RArray<TLogViewLockStatus> iLockEvents;//Holds state changes when the client isn't able to receive them immediately. 
+	RMessagePtr2 iLockStatusChangeMessage;//Completed when the view is locked/unlocked
+
+	};
+
+inline TBool CLogServViewLockObserver::HaveLockStatusChangePointer() const
+	{
+	return (iLockStatusChangeMessage != RMessagePtr2());
+	} 
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////   CLogServViewEvent  ///////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+CLogServViewBase derived class.
+
+@see CLogServViewBase 
+@internalComponent
+*/
+class CLogServViewEvent : public CLogServViewBase
+	{
+public:
+	static CLogServViewEvent* NewL(MLogServDatabaseTransactionInterface& aDatabase, 
+	                               MLogServBackupInterface& aBackupInterface, 
+	                               CLogPackage& aPackage, 
+	                               TLogViewId aViewId, 
+	                               const RMessage2& aMessage);
+	                               
+	TPtrC GetQueryStringL(const RMessage2& aMessage, TLogFilterConstructionType aFilterType);
+	//
+private:
+	CLogServViewEvent(MLogServDatabaseTransactionInterface& aDatabase, 
+	                  MLogServBackupInterface& aBackupInterface, 
+	                  CLogPackage& aPackage, 
+	                  TLogViewId aViewId, 
+	                  const RMessage2& aMessage);
+	};
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////   CLogServViewRecent  //////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+CLogServViewBase derived class.
+
+@see CLogServViewBase 
+@internalComponent
+*/
+class CLogServViewRecent : public CLogServViewBase
+	{
+public:
+	static CLogServViewRecent* NewL(MLogServDatabaseTransactionInterface& aDatabase, 
+	                                MLogServBackupInterface& aBackupInterface, 
+	                                CLogPackage& aPackage, 
+	                                TLogViewId aViewId, 
+	                                const RMessage2& aMessage);
+	                                
+	TPtrC GetQueryStringL(const RMessage2& aMessage, TLogFilterConstructionType aFilterType);
+	void RemoveL(const RMessage2& aMessage);
+	void ClearDuplicatesL(const RMessage2& aMessage);
+	//
+
+	//
+private:
+	CLogServViewRecent(MLogServDatabaseTransactionInterface& aDatabase, MLogServBackupInterface& aBackupInterface, CLogPackage& aPackage, TLogViewId aViewId, const RMessage2& aMessage);
+    void InitializeColumns2L(RDbRowSet& aRowSet); 
+	//
+private:
+	TLogRecentList iRecentList;
+
+    static TDbColNo   iIdColNo;
+    static TDbColNo   iRecentColNo;
+    static TDbColNo   iDuplicateColNo;
+	
+	};
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////   CLogServViewDuplicate  ///////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+CLogServViewBase derived class.
+
+@see CLogServViewBase 
+@internalComponent
+*/
+class CLogServViewDuplicate : public CLogServViewBase
+	{
+public:
+	static CLogServViewDuplicate* NewL(MLogServDatabaseTransactionInterface& aDatabase, 
+	                                   MLogServBackupInterface& aBackupInterface,
+	                                   CLogPackage& aPackage, 
+	                                   TLogViewId aViewId, 
+	                                   const RMessage2& aMessage);
+	                                   
+	TPtrC GetQueryStringL(const RMessage2& aMessage, TLogFilterConstructionType aFilterType);
+	void RemoveL(const RMessage2& aMessage);
+	//
+private:
+	CLogServViewDuplicate(MLogServDatabaseTransactionInterface& aDatabase, 
+	                      MLogServBackupInterface& aBackupInterface, 
+	                      CLogPackage& aPackage, 
+	                      TLogViewId aViewId, 
+	                      const RMessage2& aMessage);
+	//
+private:
+	TLogId iSourceId;
+	};
+
+#endif