PECengine/AttributeFramework2/Inc/MPEngPresenceAttrManager.h
branchRCL_3
changeset 17 a941bc465d9f
parent 0 094583676ce7
equal deleted inserted replaced
16:6ca72c0fe49a 17:a941bc465d9f
       
     1 /*
       
     2 * Copyright (c) 2004 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:  Presence Attribute Manager.
       
    15 *
       
    16 */
       
    17 
       
    18 #ifndef __MPENGPRESENCEATTRMANAGER_H
       
    19 #define __MPENGPRESENCEATTRMANAGER_H
       
    20 
       
    21 
       
    22 //INCLUDES
       
    23 #include <E32std.h>
       
    24 #include "BaMDescA.h"
       
    25 #include "BaDescA.h"
       
    26 
       
    27 
       
    28 //DATA TYPES
       
    29 
       
    30 /**
       
    31 * Attribute instance options.
       
    32 *
       
    33 * @since 3.0
       
    34 */
       
    35 enum TPEngAttributeInstanceOptions
       
    36     {
       
    37     ///
       
    38     EPEngInstanceOptionsNone  = 0x0,
       
    39 
       
    40     ///
       
    41     EPEngUserAttribute        = 0x00000001,
       
    42 
       
    43     ///
       
    44     EPEngStorableModel        = 0x00000002,
       
    45 
       
    46     ///
       
    47     EPEngEditLockedModel      = 0x00000004,
       
    48 
       
    49     ///
       
    50     EPEngCreationNotAllowed   = 0x00000008,
       
    51     };
       
    52 
       
    53 
       
    54 
       
    55 
       
    56 //FORWARD DECLARATIONS
       
    57 class MPEngPresenceAdvancedAttrModel2;
       
    58 class MPEngPresenceAttrModel2;
       
    59 
       
    60 
       
    61 
       
    62 
       
    63 // CLASS DECLARATION
       
    64 /**
       
    65  * Interface for Presence Attribute Manager.
       
    66  *
       
    67  * NOTE!!! Attribute Manager is reference counted singleton, so client
       
    68  * which has retrieved a instance to it, must also free it
       
    69  * by calling MPEngPresenceAttrManager::Close(), when the manager isn't
       
    70  * needed anymore.
       
    71  *
       
    72  * @since 3.0
       
    73  */
       
    74 class MPEngPresenceAttrManager
       
    75     {
       
    76     public: //Reference cleanup
       
    77 
       
    78         /**
       
    79          * Attribute Manager is reference counted singleton.
       
    80          * and clients must free all obtained instances by
       
    81          * calling this to each of them when the Attribute Manager
       
    82          * isn't anymore needed.
       
    83          *
       
    84          * @since 3.0
       
    85          */
       
    86         virtual void Close() = 0;
       
    87 
       
    88 
       
    89 
       
    90     public: //Attribute model
       
    91 
       
    92 
       
    93 
       
    94         /**
       
    95          * Instantiates attribute model.
       
    96          *
       
    97          * @since 3.0
       
    98          * @param aModel On the return the instantiated attribute model.
       
    99          * Returned model is pushed on the CleanupStack. Returns ownership.
       
   100          * @param aPresenceID The attribute owners presence ID.
       
   101          * @param aType Presence attribute type.
       
   102          * @param aInstanceGenre The instance genre for new attribute instance.
       
   103          */
       
   104         virtual void InstantiateAttributeLC( MPEngPresenceAttrModel2*& aModel,
       
   105                                              const TDesC& aPresenceID,
       
   106                                              TUint32 aType,
       
   107                                              TInt aInstanceOptions ) = 0;
       
   108 
       
   109 
       
   110         /**
       
   111          * Instantiates and loads attribute model.
       
   112          *
       
   113          * @since 3.0
       
   114          * @param aModel On the return the loaded attribute model.
       
   115          * Returned model is pushed on the CleanupStack. Returns ownership.
       
   116          * @param aPresenceID The attribute owners presence ID.
       
   117          * @param aType Presence attribute type.
       
   118          * @param aInstanceGenre The instance genre for new attribute instance.
       
   119          * @return Was the model found from storage?
       
   120          * KErrNotFound if attribute wasn't found from storage.
       
   121          * Else KErrNone.
       
   122          */
       
   123         virtual TInt LoadAttributeLC( MPEngPresenceAttrModel2*& aModel,
       
   124                                       const TDesC& aPresenceID,
       
   125                                       TUint32 aType,
       
   126                                       TInt aInstanceOptions ) = 0;
       
   127 
       
   128 
       
   129         /**
       
   130          * Stores attribute model to storage.
       
   131          *
       
   132          * @since 3.0
       
   133          * @param aModel The model to store.
       
   134          */
       
   135         virtual void StoreEditLockedAttributeL( const MPEngPresenceAttrModel2& aModel ) = 0;
       
   136 
       
   137 
       
   138         /**
       
   139          * Releases the edit support from the attribute model.
       
   140          *
       
   141          * @since 3.0
       
   142          * @param aModel The model.
       
   143          * @return Error code.
       
   144          */
       
   145         virtual TInt StopEditSupport( MPEngPresenceAttrModel2& aModel ) const = 0;
       
   146 
       
   147 
       
   148         /**
       
   149          * Checks is the attribute model edit locked from
       
   150          * the same slot as the Attribute Manager is connected.
       
   151          *
       
   152          * @since 3.0
       
   153          * @param aModel The model.
       
   154          */
       
   155         virtual void ModelEditLockedFromThisSlotL(
       
   156             const MPEngPresenceAttrModel2& aModel ) const = 0;
       
   157 
       
   158 
       
   159 
       
   160 
       
   161     public: //Attribute type information
       
   162 
       
   163         /**
       
   164          * Tests is the passed attribute type id a valid network attribute
       
   165          * or not. Returns:
       
   166          * - KErrNone if the attribute type is a valid network attribute.
       
   167          * - KErrUnknown if the attribute id is unknown.
       
   168          * - KErrNotSupported if the attribute id is known,
       
   169          *   but the attribute isn't a valid network attribute
       
   170          *   (Attribute is a local attribute.)
       
   171          *
       
   172          * Attribute type is a valid network attribute if it's originator
       
   173          * is one of following:
       
   174          *  - EPEngClientOriginated
       
   175          *  - EPEngServerOriginated
       
   176          *  - EPEngClientServerOriginated
       
   177          *
       
   178          * @since 3.0
       
   179          * @param aType the type of the attribute.
       
   180          * @return KErrNone, KErrUnknown or KErrNotSupported.
       
   181          */
       
   182         virtual TInt ValidNetworkAttribute( TUint32 aType ) const = 0;
       
   183 
       
   184 
       
   185         /**
       
   186          * Returns the generic array holding all known attribute types.
       
   187          *
       
   188          * @since 3.0
       
   189          * @return The generic array holding all known attribute types.
       
   190          */
       
   191         virtual TArray<TUint32> KnownAttributeTypes() const = 0;
       
   192 
       
   193 
       
   194         /**
       
   195          * Gets the XML name and XML namespace for certain attribute type.
       
   196          * If the attribute type isn't known, returns KErrUnknown and empty
       
   197          * string as name and namespace.
       
   198          *
       
   199          * @since 3.0
       
   200          * @param aAttributeType The attribute type for which to get name and namespace.
       
   201          * @param aAttributeName On the return contains the asked attribute's XML name.
       
   202          * @param aAttributeName On the return contains the asked attribute's XML namespace.
       
   203          * @return KErrNone if the attribute type is known, else KErrUnknown.
       
   204          */
       
   205         virtual TInt GetAttributeXmlNameAndNameSpace( TUint32 aType,
       
   206                                                       TPtrC8& aAttributeName,
       
   207                                                       TPtrC8& aAttributeNameSpace ) const = 0;
       
   208 
       
   209 
       
   210 
       
   211 
       
   212     public: // Attribute request packing
       
   213 
       
   214 
       
   215         /**
       
   216          * Packs a attribute model array to buffer.
       
   217          *
       
   218          * @since 3.0
       
   219          * @param aModels Models to pack.
       
   220          * @return Heap buffer containing models data.
       
   221          * Buffer ownership is returned to caller.
       
   222          */
       
   223         virtual HBufC16* PackModelArrayL(
       
   224             const RPointerArray<MPEngPresenceAttrModel2>& aModels ) const = 0;
       
   225 
       
   226 
       
   227         /**
       
   228          * Extracts models from package.
       
   229          *
       
   230          * @since 3.0
       
   231          * @param aModelPkg Model package to extract.
       
   232          * @param aInstanceOptions Instance options
       
   233          * for instantiated attribute models.
       
   234          * @param aModels On the return contains extracted attribute models.
       
   235          * Models are appended to array.
       
   236          */
       
   237         virtual void UnpackModelArrayL(
       
   238             const TDesC16& aModelPkg,
       
   239             TInt aInstanceOptions,
       
   240             RPointerArray<MPEngPresenceAttrModel2>& aModels ) = 0;
       
   241 
       
   242 
       
   243 
       
   244         /**
       
   245          * Packs a attribute fetch request.
       
   246          *
       
   247          * @since 3.0
       
   248          * @param aPresenceIDs Presence ID's to pack.
       
   249          * @param aTypes Attribute types to pack.
       
   250          * @return Heap buffer containing fetch request data.
       
   251          * Buffer ownership is returned to caller.
       
   252          */
       
   253         virtual HBufC16* PackFetchRequestL( const MDesCArray& aPresenceIDs,
       
   254                                             const TArray<TUint32>& aTypes ) const = 0;
       
   255 
       
   256 
       
   257         /**
       
   258          * Extracts a attribute fetch request from package.
       
   259          *
       
   260          * @since 3.0
       
   261          * @param aFetchRequestPkg Attribute fetch request package to extract.
       
   262          * @param aPresenceIDs On the return contains extracted Presence IDs.
       
   263          * Presence IDs are appended to the end of array.
       
   264          * @param aTypes On the return contains extracted attribute type IDs.
       
   265          * Attribute types are appended to the end of array.
       
   266          */
       
   267         virtual void UnpackFetchRequestL( const TDesC16& aFetchRequestPkg,
       
   268                                           CDesCArray& aPresenceIDs,
       
   269                                           RArray<TUint32>& aTypes ) const = 0;
       
   270 
       
   271 
       
   272     public: // Attribute store ID handling
       
   273 
       
   274         /**
       
   275          * Generates a attribute store id from given
       
   276          * attribute type and presence id. Returns store id
       
   277          * in HBufC. HBufC's ownership is returned to caller.
       
   278          *
       
   279          * @since 3.0
       
   280          * @param aAttributeType The type of the attribute
       
   281          * @param aPresenceID The presenceID of the attribute
       
   282          * @return Attribute StoreId.
       
   283          */
       
   284         virtual HBufC* GenerateStoreIdL( TUint32 aAttributeType,
       
   285                                          const TDesC& aPresenceId ) const = 0;
       
   286 
       
   287 
       
   288         /**
       
   289          * Resolves attribute type and owner presence id
       
   290          * from store id.
       
   291          *
       
   292          * @since 3.0
       
   293          * @param aStoreId The store id to resolve.
       
   294          * @param aAttributeType On succesful return contains resolved attribute type.
       
   295          * @param aPresenceId On successful return contains resolved presence id.
       
   296          * Returned aPresenceId is valid only for the lifetime of given source store id.
       
   297          * @return KErrNone if succesful. KErrCorrupt if given aStoreId
       
   298          * isn't valid attribute store id.
       
   299          */
       
   300         virtual TInt ResolveStoreId( const TDesC& aStoreId,
       
   301                                      TUint32& aAttributeType,
       
   302                                      TPtrC& aPresenceId ) const = 0;
       
   303 
       
   304 
       
   305 
       
   306     public: // Batch operations
       
   307 
       
   308         /**
       
   309          * Stores an array of attribute models in a batch to storage.
       
   310          * Force stores the models, so edit locks are ignored.
       
   311          *
       
   312          * @since 3.0
       
   313          * @param aModel The models to store.
       
   314          */
       
   315         virtual void ForceStoreBatchL(
       
   316             const RPointerArray<MPEngPresenceAttrModel2> aModels ) = 0;
       
   317 
       
   318 
       
   319         /**
       
   320          * Removes an array of attribute models in a batch from storage.
       
   321          * Force removes the models, so edit locks are ignored.
       
   322          *
       
   323          * @since 3.0
       
   324          * @param aModel The models to remove from the storage.
       
   325          */
       
   326         virtual void ForceRemoveFromStoreBatchL(
       
   327             RPointerArray<MPEngPresenceAttrModel2> aModels ) = 0;
       
   328 
       
   329 
       
   330     protected:
       
   331 
       
   332         /**
       
   333          * Protected  destructor.
       
   334          *
       
   335          * Concrete Attribute Manager can't be
       
   336          * deleted through this interface.
       
   337          */
       
   338         virtual ~MPEngPresenceAttrManager() {};
       
   339 
       
   340     };
       
   341 
       
   342 #endif      //  __MPENGPRESENCEATTRMANAGER_H
       
   343 
       
   344 //  End of File