datacommsserver/esockserver/inc/es_parameterfamily.h
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     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // Generic parameter family bundles:
       
    15 // Serialisable containers for structured custom data.
       
    16 // FamilyBundle
       
    17 // has 0..n
       
    18 // Parameter Families
       
    19 // each of which has 0..n
       
    20 // ParameterSets
       
    21 // 
       
    22 //
       
    23 // Note: Every effort should be made to ensure that the classes forming this API be kept consistent with each other
       
    24 // When making changes to these classes also see the files es_parameterbundle.h, es_parameterfamily.h,
       
    25 // ss_parameterfamilybundle.h
       
    26 //
       
    27 
       
    28 /**
       
    29  @file
       
    30  @publishedPartner
       
    31  @released
       
    32 */
       
    33 
       
    34 #ifndef __ES_PARAMETERFAMILY_H
       
    35 #define __ES_PARAMETERFAMILY_H
       
    36 
       
    37 #include <comms-infras/es_parameterset.h>
       
    38 #include <comms-infras/metacontainer.h>
       
    39 #include <comms-infras/metatype.h>
       
    40 #include <es_sock.h>
       
    41 
       
    42 class CParameterSetContainer;
       
    43 class CGenericParameterBundle;
       
    44 class RParameterFamilyBundle;
       
    45 
       
    46 
       
    47 /**
       
    48 Wrapper round CParameterSetContainer presenting the following interface:
       
    49 For each Parameter Type (Requested, Acceptable and Granted) it contains 0..N parameter sets.
       
    50 @released
       
    51 */
       
    52 class RParameterFamily
       
    53 	{
       
    54 	friend class RParameterFamilyBundle;
       
    55 	friend class RParameterFamilyBundleC;
       
    56 
       
    57 public:
       
    58 	enum TParameterSetType
       
    59          {
       
    60          ERequested = 0,
       
    61          EAcceptable = 1,
       
    62 		 EGranted = 2,
       
    63 		 ENumValues = 3 // The number of values in this enum
       
    64          };
       
    65 
       
    66 	RParameterFamily()
       
    67 		: iContainer(NULL)
       
    68 		{
       
    69 		}
       
    70 
       
    71 public:
       
    72 	// creation & deserialising
       
    73 	IMPORT_C void CreateL(RParameterFamilyBundle& aBundle, TUint32 aFamilyId);
       
    74 	IMPORT_C void LoadL(RParameterFamilyBundle& aBundle, TPtrC8& aBuffer);
       
    75 
       
    76 	// serialising
       
    77 	IMPORT_C TUint Length() const;
       
    78 	IMPORT_C TInt Store(TDes8& aDes) const;
       
    79 
       
    80 	// check if we're pointing to something valid
       
    81 	inline TBool IsNull() const;
       
    82 
       
    83 	// destruction
       
    84 	IMPORT_C void Destroy();
       
    85 
       
    86 public:
       
    87 	// adding parameter sets
       
    88 	IMPORT_C TInt AddParameterSet(XParameterSetBase* aParameterSet, TParameterSetType aType);
       
    89 	IMPORT_C void AddParameterSetL(XParameterSetBase* aParameterSet, TParameterSetType aType);
       
    90  
       
    91 	// counting parameter sets
       
    92 	IMPORT_C TInt CountParameterSets(TParameterSetType aType);
       
    93  
       
    94 	// getting/finding parameter sets
       
    95 	IMPORT_C XParameterSetBase* GetParameterSetAtIndex(TUint aIndex, TParameterSetType aType);
       
    96 	IMPORT_C XParameterSetBase* FindParameterSet(Meta::STypeId aSetId, TParameterSetType aType);
       
    97 
       
    98 	// getting/finding parameter sets (const)
       
    99 	const XParameterSetBase* GetParameterSetAtIndex(TUint aIndex, TParameterSetType aType) const
       
   100 		{return const_cast<RParameterFamily&>(*this).GetParameterSetAtIndex(aIndex,aType);}
       
   101 	const XParameterSetBase* FindParameterSet(const Meta::STypeId& aSetId, TParameterSetType aType) const
       
   102 		{return const_cast<RParameterFamily&>(*this).FindParameterSet(aSetId,aType);}
       
   103 
       
   104 	// removing parameter set, and relinquish ownership to caller
       
   105 	IMPORT_C TInt RemoveParameterSet(XParameterSetBase* aSetToRemove, TParameterSetType aType);
       
   106 	IMPORT_C TInt RemoveAndDestroyParameterSet(XParameterSetBase* aSetToRemove, TParameterSetType aType);
       
   107 
       
   108 	// ID of the parameter family
       
   109 	IMPORT_C TUint32 Id() const;
       
   110 
       
   111 	// clear all parameters of specified type
       
   112 	IMPORT_C void ClearAllParameters(TParameterSetType aType);
       
   113 
       
   114 	IMPORT_C TInt CountParameterSets();
       
   115 
       
   116 	IMPORT_C TInt DeleteParameterSet(TInt aIndex);
       
   117 	IMPORT_C void DeleteParameterSetL(TInt aIndex);
       
   118 
       
   119 	IMPORT_C TInt ClearParameterSetPointer(TInt aIndex, TParameterSetType aType);
       
   120 	
       
   121 private:
       
   122 	CParameterSetContainer* iContainer; // not necessarily owned.
       
   123 	};
       
   124 
       
   125 
       
   126 /**
       
   127 Bundle of (i.e. container for) parameter families.
       
   128 May contain and 0..N parameter families.
       
   129 @released
       
   130 */
       
   131 class RParameterFamilyBundleC
       
   132 	{
       
   133 	friend class RParameterFamily;
       
   134 	friend class RParameterFamilyBundle;
       
   135 
       
   136 public:
       
   137 	// creation & deserialising
       
   138 	IMPORT_C void CreateL();
       
   139 	IMPORT_C void LoadL(TDesC8& aDes);
       
   140 	IMPORT_C TInt Load(const TDesC8& aDes);
       
   141 
       
   142 	// serialising
       
   143 	IMPORT_C TUint Length() const;
       
   144 	IMPORT_C TInt Store(TDes8& aDes) const;
       
   145 
       
   146 	// check if we're pointing to something valid
       
   147 	inline TBool IsNull() const;
       
   148 	
       
   149 	// destruction
       
   150 	IMPORT_C void Destroy();
       
   151 
       
   152 	// get/find families
       
   153 	IMPORT_C const RParameterFamily GetFamilyAtIndex(TUint aIndex) const;
       
   154 	IMPORT_C const RParameterFamily FindFamily(TUint32 aFamilyId) const;
       
   155 
       
   156 	RParameterFamilyBundleC()
       
   157 		: iBundle(NULL)
       
   158 		{
       
   159 		}
       
   160 
       
   161 private:
       
   162 	RParameterFamilyBundleC(const RParameterFamilyBundleC& aBundle);
       
   163 	RParameterFamilyBundleC& operator=(const RParameterFamilyBundleC& aBundle);
       
   164 
       
   165 private:
       
   166 	CGenericParameterBundle* iBundle;
       
   167 	};
       
   168 
       
   169 
       
   170 /**
       
   171 Bundle of (i.e. container for) parameter families.
       
   172 May contain and 0..N parameter families.
       
   173 @released
       
   174 */
       
   175 class RParameterFamilyBundle : public RParameterFamilyBundleC
       
   176 	{
       
   177 public:
       
   178 	// adding/creating families
       
   179 	IMPORT_C RParameterFamily CreateFamilyL(TUint32 aFamilyId);
       
   180 	
       
   181 	// get/find families (non-const version)
       
   182 	IMPORT_C RParameterFamily GetFamilyAtIndex(TUint aIndex);
       
   183 	IMPORT_C RParameterFamily FindFamily(TUint32 aFamilyId);
       
   184 
       
   185 	// clear all parameters
       
   186 	IMPORT_C void ClearAllParameters(RParameterFamily::TParameterSetType aType);
       
   187 
       
   188 	RParameterFamilyBundle()
       
   189 		: RParameterFamilyBundleC()
       
   190 		{
       
   191 		}
       
   192 
       
   193 	IMPORT_C TInt CountParameterFamilies() const;
       
   194 	IMPORT_C TInt DeleteFamilyAtIndex(TInt aIndex);
       
   195 	IMPORT_C void RemoveFamilyAtIndex(TInt aIndex);
       
   196 	
       
   197 private:
       
   198 	RParameterFamilyBundle(const RParameterFamilyBundle& aBundle);
       
   199 	RParameterFamilyBundle& operator=(const RParameterFamilyBundle& aBundle);
       
   200 	};
       
   201 
       
   202 
       
   203 #include <comms-infras/es_parameterfamily.inl>
       
   204 
       
   205 #endif
       
   206 // __ES_PARAMETERFAMILY_H
       
   207 
       
   208 
       
   209 
       
   210