sapi_landmarks/inc/clandmarkcategoryiterable.h
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     1 /*
       
     2 * Copyright (c) 2005-2006 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 the License "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:  CLandmarkCategoryIterable class
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef __CLANDMARKCATEGORYITERABLE_H__
       
    20 #define __CLANDMARKCATEGORYITERABLE_H__
       
    21 
       
    22 //INCLUDES
       
    23 #include <liwvariant.h>
       
    24 
       
    25 //FORWARD DECLARATIONS
       
    26 class CPosLandmarkCategory;
       
    27 class CPosLandmarkDatabase;
       
    28 class CPosLmCategoryManager;
       
    29 class CPosLmItemIterator;
       
    30 
       
    31 /**
       
    32 * CLandmarkCategoryIterable
       
    33 * This class inherits from CLiwIterable and implements the Reset() and 
       
    34 * NextL(TLiwVariant& aEntry) functions. This class is used to iterate through 
       
    35 * a list of landmark categories.
       
    36 */
       
    37 // CLASS DECLARATION
       
    38 NONSHARABLE_CLASS(CLandmarkCategoryIterable): public CLiwIterable
       
    39     {
       
    40     public: //New methods
       
    41 
       
    42         /**
       
    43         * NewL.
       
    44         * Two-phased constructor.
       
    45         * Create a CLandmarkCategoryIterable object.
       
    46         * @param aIterator The iterator to be used for iterating landmark categories. This owns the iterator.
       
    47         * @param aDatabaseUri The URI of the database on which the iteration is to be done.
       
    48         * @return A pointer to the created instance of CLandmarkCategoryIterable.
       
    49         */
       
    50         static CLandmarkCategoryIterable* NewL( CPosLmItemIterator* aIterator,
       
    51             const TDesC& aDatabaseUri );
       
    52 
       
    53         /**
       
    54         * ~CLandmarkCategoryIterable
       
    55         * Destructor.
       
    56         */
       
    57         ~CLandmarkCategoryIterable();
       
    58 
       
    59     protected: //from CLiwIterable
       
    60 
       
    61         // Resets the iterator. 
       
    62         void Reset();
       
    63 
       
    64         // Iterates over the collection entries to fetch the next data element.
       
    65         TBool NextL(TLiwVariant& aEntry);
       
    66 
       
    67     private: //constructor
       
    68 
       
    69         /**
       
    70         * ConstructL
       
    71         * 2nd phase constructor.
       
    72         * Perform the second phase construction of a
       
    73         * CLandmarkCategoryIterable object.
       
    74         * @param aDatabaseUri The URI of the database on which the iteration is to be done.
       
    75         */
       
    76         void ConstructL( const TDesC& aDatabaseUri );
       
    77 
       
    78         /**
       
    79         * CLandmarkCategoryIterable.
       
    80         * C++ default constructor.
       
    81         * @param aIterator The iterator to be used for iterating landmark categories. This owns the iterator.
       
    82         */
       
    83         CLandmarkCategoryIterable( CPosLmItemIterator* aIterator );
       
    84 
       
    85     private: //data
       
    86 
       
    87         /**
       
    88         * iIterator
       
    89         * The handle to the CPosLmItemIterator landmark iterator.
       
    90         */
       
    91         CPosLmItemIterator* iIterator;
       
    92 
       
    93         /**
       
    94         * iDatabase
       
    95         * The handle to the CPosLandmarkDatabase.
       
    96         */
       
    97         CPosLandmarkDatabase* iDatabase;
       
    98 
       
    99         /**
       
   100         * iCategoryManager
       
   101         * The handle to the CPosLmCategoryManager.
       
   102         */
       
   103         CPosLmCategoryManager* iCategoryManager;
       
   104 
       
   105         /**
       
   106         * iLandmarkCategory
       
   107         * The CPosLandmark instance retrieved by iterator.
       
   108         */
       
   109         CPosLandmarkCategory* iLandmarkCategory;
       
   110         
       
   111         /**
       
   112         * iCategoryId
       
   113         * The Id of the category stored as string.
       
   114         */
       
   115         HBufC* iCategoryId;
       
   116         
       
   117         /**
       
   118         * iGlobalCategoryId
       
   119         * The Global Id of the category stored as string.
       
   120         */
       
   121         HBufC* iGlobalCategoryId;
       
   122     };
       
   123 
       
   124 #endif // __CLANDMARKCATEGORYITERABLE_H__
       
   125 
       
   126 // End of File