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: Declaration of CPosLmNameIndexIterator class

    15 *

    16 *

    17 */

    18 

    19 

    20 #ifndef EPOS_CPOSLMNAMEINDEXITERATOR_H_

    21 #define EPOS_CPOSLMNAMEINDEXITERATOR_H_

    22 

    23 #include <e32base.h>

    24 #include <epos_rposlmlocalnameindex.h>

    25 

    26 class CPosLmNameIndexIterator : public CBase

    27     {

    28     public:

    29     

    30         enum TIndexMode

    31             {

    32             EModePartial,   //< discards already enumerated items on next load

    33             EModeFull       //< keeps all index items

    34             };

    35     

    36     public:

    37         static CPosLmNameIndexIterator* NewL( 

    38             RPosLmLocalNameIndex& aIndex,

    39             TBool aAscending );

    40         ~CPosLmNameIndexIterator();

    41         

    42         TInt Count() const;

    43         TInt TotalCount() const;

    44         TInt LoadedCount() const;

    45 

    46         TBool HasMore() const;

    47         void LoadMoreL( TInt aCount );

    48         

    49         void First();

    50         TBool Next();

    51         TBool AtEnd() const;

    52         TInt CurrentPosition() const;

    53 

    54         const RPosLmLocalNameIndex::CIndexItem& Current() const;

    55         

    56         void SetMode( TIndexMode aMode );

    57         TIndexMode Mode() const;

    58         

    59         const RPosLmLocalNameIndex::CIndexItem& Item( TInt aIndex ) const;

    60         TInt Find( TPosLmItemId aLmid ) const;

    61         

    62     protected:

    63         CPosLmNameIndexIterator( 

    64             RPosLmLocalNameIndex& aIndex,

    65             TBool aAscending );

    66         

    67         void DiscardProcessedItems();

    68         

    69     private:

    70         RPosLmLocalNameIndex& iIndex;

    71         TInt iLeftInIndex;

    72         TInt iNextToLoad;

    73 

    74         RPointerArray<RPosLmLocalNameIndex::CIndexItem> iSortedLandmarks;

    75         TInt iCurrent; // index in iSortedLandmarks

    76         TIndexMode iMode;

    77         

    78         TBool iAscending;

    79     };

    80 

    81 #endif /*EPOS_CPOSLMNAMEINDEXITERATOR_H_*/