diff -r d189ee25cf9d -r 3533d4323edc meetingrequest/mrgui/inc/mesmrfieldstorage.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/meetingrequest/mrgui/inc/mesmrfieldstorage.h	Wed Sep 01 12:28:57 2010 +0100
@@ -0,0 +1,97 @@
+/*
+* Copyright (c) 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: This file defines class MESMRFieldStorage.
+*
+*/
+
+
+#ifndef MESMRFIELDSTORAGE_H
+#define MESMRFIELDSTORAGE_H
+
+#include <e32std.h>
+#include "esmrdef.h" // TESMREntryFieldId
+
+class MESMRCalEntry;
+class CESMRField;
+class CESMRPolicy;
+
+/**
+ * Pure virtual class to be inherited by field storage classes.
+ */
+class MESMRFieldStorage
+    {
+public:
+    virtual ~MESMRFieldStorage(){}
+public:
+    /**
+     * Returns the count for all the fields in the storage
+     *
+     * @return TInt - field count
+     */
+    virtual TInt Count() const = 0;
+
+    /**
+     * Returns field for given index.
+     *
+     * @param aInd - index of the wanted field.
+     * @return CESMRField pointer
+     */
+    virtual CESMRField* Field( TInt aInd ) const = 0;
+
+    /**
+     * Returns field for given field id.
+     * 
+     * @param aId field id
+     * @return CESMRField poiter or NULL. 
+     */
+    virtual CESMRField* FieldById( TESMREntryFieldId aId ) const = 0;
+    
+    /**
+     * Called in the construction phase to set needed
+     * entry informations to fields.
+     *
+     * @param aEntry - contains needed information.
+     */
+    virtual void InternalizeL( MESMRCalEntry& aEntry ) = 0;
+
+    /**
+     * Called when editing the entry is done. Information from edited fields
+     * is collected to aEntry.
+     *
+     * @param aEntry - entry where all the edited information is stored
+     */
+    virtual void ExternalizeL( MESMRCalEntry& aEntry ) = 0;
+
+    /**
+     * Validates the content of fields
+     *
+     * @param aId Field id where focus is set if validation fails
+     * @param aForceValidate ETrue if force validation is used
+     * @return TInt
+     */
+    virtual TInt Validate( 
+    		TESMREntryFieldId& aId, 
+    		TBool aForceValidate = EFalse ) = 0;
+    
+    /**
+     * Updates storage on policy change.
+     * 
+     * @param aNewPolicy the new policy to adjust the storage.
+     * @param aEntry the entry to handle.
+     */
+    virtual void ChangePolicyL( const CESMRPolicy& aNewPolicy,
+                                MESMRCalEntry& aEntry ) = 0;
+    };
+
+#endif