multimediacommsengine/mmcesrv/mmceserver/inc/mcedictionary.h
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     1 /*
       
     2 * Copyright (c) 2005 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 
       
    20 
       
    21 #ifndef CMCEDICTIONARY_H
       
    22 #define CMCEDICTIONARY_H
       
    23 
       
    24 //  INCLUDES
       
    25 #include <e32base.h>
       
    26 #include "mcesrv.h"
       
    27 
       
    28 /**
       
    29 *  Abstract base class for key - value pairs
       
    30 *
       
    31 *  @lib 
       
    32 *  @since
       
    33 */
       
    34 class CMceDictionaryItem : public CBase
       
    35     {
       
    36 public: // New functions
       
    37 
       
    38     /**
       
    39     * Returns the key
       
    40     * @return the key
       
    41     */
       
    42     TInt Key();
       
    43     
       
    44 protected:
       
    45     
       
    46     /**
       
    47     * Constructor
       
    48     * @param aKey the key
       
    49     */
       
    50     CMceDictionaryItem( TInt aKey );
       
    51     
       
    52 private: // Data
       
    53     
       
    54     // the key
       
    55     TInt iKey;
       
    56     };
       
    57 
       
    58 /**
       
    59 *  Template class for key-value pairs, where
       
    60 *  the value is a T-class object.
       
    61 *
       
    62 *  @lib 
       
    63 *  @since
       
    64 */
       
    65 template <class T> 
       
    66 class CMceKeyTValuePair : public CMceDictionaryItem
       
    67     {
       
    68 public: // Constructors and destructors
       
    69 
       
    70 	/**
       
    71 	* Constructor
       
    72 	* @param aKey the key
       
    73 	* @param aValue the value
       
    74 	*/
       
    75 	CMceKeyTValuePair( TInt aKey, T aValue );
       
    76 
       
    77 public: // Functions from base classes
       
    78     
       
    79     // From CMceKeyValuePairBase
       
    80     /**
       
    81     * Returns the value.
       
    82     * @return the value
       
    83     */
       
    84 	T& Value();
       
    85         
       
    86 public: // New functions       
       
    87     
       
    88     /**
       
    89     * Sets the value
       
    90     * @param aValue
       
    91     */
       
    92     void SetValue( T aValue );
       
    93     
       
    94 private: // Data
       
    95     
       
    96         // the value
       
    97         T iValue;
       
    98     MCESRV_UT_DEFINITIONS
       
    99     };
       
   100 
       
   101 /**
       
   102 *  Template class for key-value pairs, where
       
   103 *  the value is a C-class object.
       
   104 *
       
   105 *  @lib 
       
   106 *  @since
       
   107 */
       
   108 template <class C> 
       
   109 class CMceKeyCValuePair : public CMceDictionaryItem
       
   110     {
       
   111 
       
   112 public: // Constructors and destructor
       
   113 
       
   114     /**
       
   115 	* Constructor
       
   116     * @param aKey the key
       
   117 	* @param aValue the value, ownership is transfered
       
   118 	*/
       
   119 	CMceKeyCValuePair( TInt aKey, C* aValue );
       
   120     
       
   121     /**
       
   122 	* Destructor
       
   123 	*/
       
   124 	~CMceKeyCValuePair();
       
   125 
       
   126 public: // Functions from base classes
       
   127     
       
   128     // From CMceKeyValuePairBase
       
   129     /**
       
   130     * Returns the value.
       
   131     * @return the value, ownership is not transfered
       
   132     */
       
   133 	C* Value();
       
   134         
       
   135 public: // New functions           
       
   136     /**
       
   137     * Sets the value
       
   138     * @param aValue
       
   139     */
       
   140     void SetValue( C* aValue );
       
   141         
       
   142 private: // data
       
   143         
       
   144     // the value, owned
       
   145     C* iValue;
       
   146     
       
   147     MCESRV_UT_DEFINITIONS    
       
   148     };
       
   149     
       
   150     
       
   151 /**
       
   152 * Cictionary that holds key-value pairs and allows modification of them. 
       
   153 */
       
   154 class CMceDictionary : public CBase
       
   155     {
       
   156     
       
   157 public: // Constructors and destructor
       
   158     
       
   159     /**
       
   160 	* Destructor
       
   161 	*/
       
   162     ~CMceDictionary();
       
   163    
       
   164 public: // New functions
       
   165     
       
   166     /**
       
   167     * Returns the dictionary item with given key.
       
   168     * Returns NULL, if the item is not found.
       
   169     * @param aKey
       
   170     * @return the item, ownership is not transfered.
       
   171     */
       
   172     CMceDictionaryItem* Pair( TInt aKey ) const;
       
   173     
       
   174     /**
       
   175     * Adds a key-value pair to the dictionary.
       
   176     * aPair the pair, ownership is transfered.
       
   177     * The pair 
       
   178     */
       
   179     void AddL( CMceDictionaryItem* aPair );
       
   180     
       
   181 	/**
       
   182 	* Deletes a pair that has given key from the dictionary.
       
   183 	* @param aKey the key
       
   184 	*/	
       
   185 	void Delete( TInt aKey );
       
   186 	
       
   187 private:
       
   188     
       
   189     // data
       
   190     RPointerArray< CMceDictionaryItem > iPairs;
       
   191 
       
   192     MCESRV_UT_DEFINITIONS		
       
   193     };
       
   194 
       
   195 #include "mcedictionary.inl"
       
   196 #endif // CMCEDICTIONARY_H
       
   197 
       
   198 // End of File