ncdengine/provider/storage/inc/ncdstoragefiledataitem.h
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     1 /*
       
     2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef C_NCDSTORAGEFILEDATAITEM_H
       
    20 #define C_NCDSTORAGEFILEDATAITEM_H
       
    21 
       
    22 #include <e32base.h>
       
    23 
       
    24 #include "ncdstoragedataitem.h"
       
    25 
       
    26 class RFile;
       
    27 class RFs;
       
    28 
       
    29 /**
       
    30  *  Externalizes the given file to the database storage
       
    31  *  @ Consider adding an observer for errors
       
    32  */
       
    33 class CNcdStorageFileDataItem : public CBase, public MNcdStorageDataItem
       
    34     {
       
    35 public:
       
    36 
       
    37     /**
       
    38      * Creates a new file data item
       
    39      *
       
    40      * @param aFilename Path to the file that is written to the database
       
    41      * during ExternalizeL()
       
    42      * @return A new file data item
       
    43      * @throw KErrArgument If the filename is empty
       
    44      */        
       
    45     static CNcdStorageFileDataItem* NewL( const TDesC& aFilename, RFs& aFs );
       
    46 
       
    47 
       
    48     /**
       
    49      * Creates a new file data item
       
    50      *
       
    51      * @param aFilename Path to the file that is written to the database
       
    52      * during ExternalizeL()
       
    53      * @return A new file data item
       
    54      * @throw KErrArgument If the filename is empty     
       
    55      */        
       
    56     static CNcdStorageFileDataItem* NewLC( const TDesC& aFilename, RFs& aFs );
       
    57 
       
    58 
       
    59 
       
    60     virtual ~CNcdStorageFileDataItem();
       
    61 
       
    62 
       
    63 public: // from MNcdStorageDataItem
       
    64 
       
    65     /**
       
    66      * Externalizes the file to the database
       
    67      *
       
    68      * @param aStream Write stream
       
    69      */
       
    70     void ExternalizeL( RWriteStream& aStream );
       
    71 
       
    72 
       
    73     /**
       
    74      * Not supported. Use MNcdStorageItem::GetDataL() instead
       
    75      * 
       
    76      * @throw KErrNotSupported
       
    77      */
       
    78     void InternalizeL( RReadStream& aStream );
       
    79 
       
    80 
       
    81 private:
       
    82 
       
    83     CNcdStorageFileDataItem( RFs& aFs );
       
    84 
       
    85     void ConstructL( const TDesC& aFilename );
       
    86 
       
    87 
       
    88 private: // data
       
    89 
       
    90     RFs& iFs;
       
    91     RBuf iFilename;
       
    92 
       
    93     };
       
    94 
       
    95 
       
    96 #endif // C_NCDSTORAGEFILEDATAITEM_H