--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/loggingservices/eventlogger/Shared/LogChangeDefinition.h	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,128 @@
+// 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 __LOGCHANGEDEFINITION_H__
+#define __LOGCHANGEDEFINITION_H__
+
+// System includes
+#include <e32base.h>
+#include <s32strm.h>
+#include <logwrap.h>
+#include <logwraplimits.h>
+
+/**
+Constants
+@internalComponent
+*/
+const TInt KLogChangeDefinitionDefaultGranularity = 10;
+
+/**
+Enumerations
+@internalComponent
+*/
+enum TLogDatabaseChangeType
+	{
+	ELogChangeTypeUndefined = -1,
+	ELogChangeTypeEventAdded = 0,
+	ELogChangeTypeEventChanged,
+	ELogChangeTypeEventChangedHidden,
+	ELogChangeTypeEventDeleted,
+	ELogChangeTypeLogCleared
+	};
+
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// -----> CLogChangeDefinition (header)
+/////////////////////////////////////////////////////////////////////////////////////////
+class CLogChangeDefinition : public CBase
+/**
+@internalComponent
+*/
+	{
+public: // CONSTRUCT / DESTRUCT
+	IMPORT_C static CLogChangeDefinition* NewL(TInt aGranularity = KLogChangeDefinitionDefaultGranularity);
+	IMPORT_C static CLogChangeDefinition* NewL(RReadStream& aStream);
+	IMPORT_C static CLogChangeDefinition* NewL(const CLogChangeDefinition& aCopy);
+	IMPORT_C ~CLogChangeDefinition();
+
+private: // INTERNAL CONSTRUCT
+	CLogChangeDefinition(TInt aGranularity);
+	void ConstructL(const CLogChangeDefinition& aCopy);
+
+public: // API
+
+	/**
+	 * Return the number of events in the change definition
+	 */
+	IMPORT_C TInt Count() const;
+
+	/**
+	 * Get a change description
+	 */
+	IMPORT_C TLogDatabaseChangeType At(TInt aIndex) const;
+	IMPORT_C TLogDatabaseChangeType At(TInt aIndex, TLogId& aId) const;
+	IMPORT_C TLogDatabaseChangeType At(TInt aIndex, TLogId& aId, TInt& aViewIndex) const;
+
+	/**
+	 * Find the position of a specific event
+	 */
+	IMPORT_C TInt Find(TLogId aId) const;
+	IMPORT_C TInt Find(TLogId aId, TLogDatabaseChangeType aType) const;
+	IMPORT_C TInt FindByViewIndex(TInt aViewIndex) const;
+
+	/**
+	 * Add a change definition
+	 */
+	IMPORT_C void AddL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex);
+
+	/**
+	 * Reset change contents
+	 */
+	IMPORT_C void Reset();
+
+public: // INTERNALIZE / EXTERNALIZE
+	IMPORT_C void InternalizeL(RReadStream& aStream);
+	IMPORT_C void ExternalizeL(RWriteStream& aStream) const;
+
+private: // INTERNAL CLASSES
+	class TLogShdChangeDetails
+		{
+	public:
+		inline TLogShdChangeDetails() : iId(KLogNullId), iType(ELogChangeTypeUndefined), iViewIndex(KErrNotFound) { }
+		inline TLogShdChangeDetails(TLogId aId, TLogDatabaseChangeType aType = ELogChangeTypeUndefined, TInt aViewIndex = KErrNotFound) : iId(aId), iType(aType), iViewIndex(aViewIndex) { }
+
+	public:
+		TLogId iId;
+		TLogDatabaseChangeType iType;
+		TInt iViewIndex;
+		};
+
+private: // INTERNAL METHODS
+	static TBool CompareEntryIds(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight);
+	static TBool CompareViewIndicies(const TLogShdChangeDetails& aLeft, const TLogShdChangeDetails& aRight);
+	void AddToContainerL(TLogId aId, TLogDatabaseChangeType aType, TInt aViewIndex);
+
+private: // MEMBER DATA
+
+	/**
+	 * List of changes
+	 */
+	RArray<TLogShdChangeDetails> iChanges;
+	};
+
+
+
+
+#endif