radioengine/utils/inc/cradiorepositorymanagerimp.h
branchGCC_SURGE
changeset 37 451b2e1545b2
parent 26 6bcf277166c1
parent 33 11b6825f0862
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26:6bcf277166c1 37:451b2e1545b2
     1 /*
       
     2 * Copyright (c) 2009 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_RADIOREPOSITORYMANAGERIMP_H
       
    20 #define C_RADIOREPOSITORYMANAGERIMP_H
       
    21 
       
    22 // System includes
       
    23 #include <centralrepository.h>
       
    24 
       
    25 // User includes
       
    26 #include "mradiorepositoryentityobserver.h"
       
    27 
       
    28 // Forward declarations
       
    29 class CRadioRepositoryEntityBase;
       
    30 
       
    31 /**
       
    32  *  Central repository entity manager.
       
    33  *
       
    34  *  Manages central repository entities that listen to specific repository and a key within it, notifying the observer
       
    35  *  whenever the key's value changes.
       
    36  *
       
    37  *  Also a set of static methods are provided that wrap the common use case of central repository where the user
       
    38  *  is only interested to read or write the value of a key and then discard the repository object.
       
    39  */
       
    40 NONSHARABLE_CLASS( CRadioRepositoryManagerImp ) : public CRadioRepositoryManager
       
    41                                                 , public MRadioRepositoryEntityObserver
       
    42     {
       
    43 
       
    44 public:
       
    45 
       
    46     static CRadioRepositoryManagerImp* NewL( TInt aGranularity );
       
    47 
       
    48     ~CRadioRepositoryManagerImp();
       
    49 
       
    50     /**
       
    51      * Sets the value of an integer key in the repository.
       
    52      *
       
    53      * @param   aUid        The UID of the repository.
       
    54      * @param   aKey        The key within the repository.
       
    55      * @param   aValue      The value to set.
       
    56      */
       
    57     static void SetRepositoryValueL( const TUid& aUid, TUint32 aKey, TInt aValue );
       
    58 
       
    59     /**
       
    60      * Sets the value of a floating point key in the repository.
       
    61      *
       
    62      * @param   aUid        The UID of the repository.
       
    63      * @param   aKey        The key within the repository.
       
    64      * @param   aValue      The value to set.
       
    65      */
       
    66     static void SetRepositoryValueL( const TUid& aUid, TUint32 aKey, const TReal& aValue );
       
    67 
       
    68     /**
       
    69      * Sets the value of a binary key in the repository.
       
    70      *
       
    71      * @param   aUid        The UID of the repository.
       
    72      * @param   aKey        The key within the repository.
       
    73      * @param   aValue      The value to set.
       
    74      */
       
    75     static void SetRepositoryValueL( const TUid& aUid, TUint32 aKey, const TDesC8& aValue );
       
    76 
       
    77     /**
       
    78      * Sets the value of a string key in the repository.
       
    79      *
       
    80      * @param   aUid        The UID of the repository.
       
    81      * @param   aKey        The key within the repository.
       
    82      * @param   aValue      The value to set.
       
    83      */
       
    84     static void SetRepositoryValueL( const TUid& aUid, TUint32 aKey, const TDesC16& aValue );
       
    85 
       
    86     /**
       
    87      * Gets the value of an integer key in the repository.
       
    88      *
       
    89      * @param   aUid        The UID of the repository.
       
    90      * @param   aKey        The key within the repository.
       
    91      * @param   aValue      On return, the value of the key within the repository.
       
    92      */
       
    93     static void GetRepositoryValueL( const TUid& aUid, TUint32 aKey, TInt& aValue );
       
    94 
       
    95     /**
       
    96      * Gets the value of a floating point key in the repository.
       
    97      *
       
    98      * @param   aUid        The UID of the repository.
       
    99      * @param   aKey        The key within the repository.
       
   100      * @param   aValue      On return, the value of the key within the repository.
       
   101      */
       
   102     static void GetRepositoryValueL( const TUid& aUid, TUint32 aKey, TReal& aValue );
       
   103 
       
   104     /**
       
   105      * Gets the value of a binary key in the repository.
       
   106      *
       
   107      * @param   aUid        The UID of the repository.
       
   108      * @param   aKey        The key within the repository.
       
   109      * @param   aValue      On return, the value of the key within the repository.
       
   110      */
       
   111     static void GetRepositoryValueL( const TUid& aUid, TUint32 aKey, TDes8& aValue );
       
   112 
       
   113     /**
       
   114      * Gets the value of a string key in the repository.
       
   115      *
       
   116      * @param   aUid        The UID of the repository.
       
   117      * @param   aKey        The key within the repository.
       
   118      * @param   aValue      On return, the value of the key within the repository.
       
   119      */
       
   120     static void GetRepositoryValueL( const TUid& aUid, TUint32 aKey, TDes16& aValue );
       
   121 
       
   122 private:
       
   123 
       
   124     CRadioRepositoryManagerImp( TInt aGranularity );
       
   125 
       
   126     void ConstructL();
       
   127 
       
   128 // from base class CRadioRepositoryManager
       
   129 
       
   130     void AddObserverL( MRadioRepositoryEntityObserver* aObserver );
       
   131     void RemoveObserver( MRadioRepositoryEntityObserver* aObserver );
       
   132     void EnableSave( TBool aEnable );
       
   133     void AddEntityL( const TUid& aUid, TUint32 aKey, TRadioEntityType aType );
       
   134     void RemoveEntity( const TUid& aUid, TUint32 aKey );
       
   135     TInt SetEntityValue( const TUid& aUid, TUint32 aKey, TInt aValue );
       
   136     TInt SetEntityValue( const TUid& aUid, TUint32 aKey, const TReal& aValue );
       
   137     TInt SetEntityValue( const TUid& aUid, TUint32 aKey, const TDesC8& aValue );
       
   138     TInt SetEntityValue( const TUid& aUid, TUint32 aKey, const TDesC16& aValue );
       
   139     TInt EntityValueInt( const TUid& aUid, TUint32 aKey ) const;
       
   140     const TReal& EntityValueReal( const TUid& aUid, TUint32 aKey ) const;
       
   141     const TDesC8& EntityValueDes8( const TUid& aUid, TUint32 aKey ) const;
       
   142     const TDesC16& EntityValueDes16( const TUid& aUid, TUint32 aKey ) const;
       
   143 
       
   144     /**
       
   145      * Sets the value of an entity.
       
   146      *
       
   147      * @param   aUid        The UID of the entity.
       
   148      * @param   aKey        The key of the entity.
       
   149      * @param   aValue      The value to set.
       
   150      */
       
   151     template <typename T>
       
   152     TInt DoSetEntityValue( const TUid& aUid, TUint32 aKey, const T& aValue );
       
   153 
       
   154     /**
       
   155      * Returns an entity's cached value.
       
   156      *
       
   157      * @param   aUid        The UID of the entity.
       
   158      * @param   aKey        The key of the entity.
       
   159      * @return  The cached value of the entity.
       
   160      */
       
   161     template <typename T>
       
   162     const T& DoEntityValue( const TUid& aUid, TUint32 aKey ) const;
       
   163 
       
   164     /**
       
   165      * Sets the value of a key.
       
   166      *
       
   167      * @param   aUid        The UID of the repository.
       
   168      * @param   aKey        The key within the repository.
       
   169      * @param   aValue      The value to set.
       
   170      */
       
   171     template <typename T>
       
   172     static void DoSetRepositoryValueL( const TUid& aUid, TUint32 aKey, const T& aValue );
       
   173 
       
   174     /**
       
   175      * Returns a key's value.
       
   176      *
       
   177      * @param   aUid        The UID of the repository.
       
   178      * @param   aKey        The key within the repository.
       
   179      * @return  The key's value.
       
   180      */
       
   181     template <typename T>
       
   182     static void DoGetRepositoryValueL( const TUid& aUid, TUint32 aKey, T& aValue );
       
   183 
       
   184     /**
       
   185      * Returns the entity's index by its UID and key.
       
   186      *
       
   187      * @param   aUid        The UID of the entity.
       
   188      * @param   aKey        The key of the entity.
       
   189      * @param   The entity's index or <code>KErrNotFound</code> if no such entity could be found.
       
   190      */
       
   191     TInt EntityIndex( const TUid& aUid, TUint32 aKey ) const;
       
   192 
       
   193     /**
       
   194      * SIS installation does not update central repository, this checks that the new keys are in the repository.
       
   195      */
       
   196     void CheckRepositoryKeysL();
       
   197 
       
   198 // from base class MRadioRepositoryEntityObserver
       
   199 
       
   200     void HandleRepositoryValueChangeL( const TUid& aUid, TUint32 aKey, TInt aValue, TInt aError );
       
   201     void HandleRepositoryValueChangeL( const TUid& aUid, TUint32 aKey, const TReal& aValue, TInt aError );
       
   202     void HandleRepositoryValueChangeL( const TUid& aUid, TUint32 aKey, const TDesC8& aValue, TInt aError );
       
   203     void HandleRepositoryValueChangeL( const TUid& aUid, TUint32 aKey, const TDesC16& aValue, TInt aError );
       
   204 
       
   205 private: // data
       
   206 
       
   207     /** The observers that are notified of changes in the entities' values. */
       
   208     RPointerArray<MRadioRepositoryEntityObserver> iObservers;
       
   209 
       
   210     /** The entities registered. */
       
   211     RPointerArray<CRadioRepositoryEntityBase> iEntities;
       
   212 
       
   213     /** Indicates whether or not the entities are allowed to write to the repository. */
       
   214     TBool iEnableSave;
       
   215 
       
   216     };
       
   217 
       
   218 #endif // C_RADIOREPOSITORYMANAGERIMP_H