1 /*

     2 * Copyright (c) 2007 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:  Private snapshot item header

    15 *

    16 */

    17 

    18 

    19 #ifndef __SNAPSHOTITEM_H__

    20 #define __SNAPSHOTITEM_H__

    21 

    22 // INCLUDES

    23 

    24 #include <s32strm.h>

    25 #include <nsmlsnapshotitem.h>

    26 

    27 

    28 // CLASS DECLARATION

    29 

    30 // Defines the maximum length of a hash.

    31 const TInt KMaxHashLength = 20;

    32 typedef TBuf8<KMaxHashLength> THashValue;

    33 

    34 /**

    35 * @brief TSnapshotItem

    36 * This class represents a single item in the ChangeFinder snapshot.

    37 * It's derived from the generic snapshot item and extended

    38 * to contain the hash (name and url) information.

    39 */

    40 class TSnapshotItem : public TNSmlSnapshotItem

    41 	{ 

    42 public:

    43 	

    44 	/**

    45     * Constructor

    46     */

    47 	TSnapshotItem();

    48 

    49 	/**

    50     * Constructor

    51     * 

    52     * @param aItemId   IN: id of the item.

    53     * @param aParent   IN: parent item, 0 as default.

    54     */

    55 	TSnapshotItem( const TSmlDbItemUid& aItemId,

    56 	    const TSmlDbItemUid& aParent = 0 );

    57 	

    58 	/**

    59     * Writes the item to a stream.

    60     * 

    61     * @param aStream   IN: a reference to a stream, where this item is to be written.

    62     */

    63 	void ExternalizeL( RWriteStream& aStream ) const;

    64 

    65 	/**

    66     * Reads item from a stream.

    67     * 

    68     * @param aStream   IN: a reference to a stream, where this item is read from.

    69     */

    70 	void InternalizeL( RReadStream& aStream );	

    71 	

    72 	/**

    73     * Creates hash from name and url

    74     *

    75     * @param aName, name to used

    76     * @param aUrl, url to used

    77     * @return none.

    78     */

    79 	void CreateHashL( const TDesC& aName, const TDesC& aUrl );

    80 	

    81 	/**

    82     * Reads hash

    83     * 

    84     * @return TDesC8& hash.

    85     */

    86 	const TDesC8& Hash() const;

    87 	

    88 private:

    89     

    90     THashValue       iHash;

    91     };

    92 

    93 #endif