Class CMtmUiDataRegistry

CMtmUiDataRegistry

Support

Supported from 5.0

Description

Accesses the UI Data MTM registry. This registry holds details of the all the UI Data MTMs currently available on the system. Message client applications use this class to get a CBaseMtmUiData-derived object by which to access UI Data MTM functionality.

Note that the base class CMtmDllRegistry provides functions for discovering what MTMs are present in the registry.

Derivation

CBase Base class for all classes to be instantiated on the heap CMtmDllRegistry Accesses the various MTM component registries CMtmUiDataRegistry Accesses the UI Data MTM registry CObserverRegistry An intermediary class used in the derivation of CClientMtmRegistry, CMtmUiDataRegistry and CMtmUiRegistry MMsvSessionObserver Provides the interface for notification of events from a Message Server session

Defined in CMtmUiDataRegistry:
NewL(), NewMtmUiDataLayerL()

Inherited from CBase:
operator new()

Inherited from CMtmDllRegistry:
IsInUse(), IsPresent(), MtmTypeUid(), NumRegisteredMtmDlls(), RegisteredMtmDllInfo(), TechnologyTypeUid()

Inherited from MMsvSessionObserver:
EMsvCloseSession, EMsvCorruptedIndexRebuilding, EMsvCorruptedIndexRebuilt, EMsvGeneralError, EMsvMediaAvailable, EMsvMediaChanged, EMsvMediaIncorrect, EMsvMediaUnavailable, EMsvMtmGroupDeInstalled, EMsvMtmGroupInstalled, EMsvServerFailedToStart, EMsvServerReady, EMsvServerTerminated, EMsvStoreCommitted, EMsvStoreCreated, EMsvStoreDeleted, EmsvEntriesChanged, EmsvEntriesDeleted, EmsvEntriesMoved, EmsvEntryCreated, HandleSessionEvent(), HandleSessionEventL(), TMsvSessionEvent

static CMtmUiDataRegistry* NewL(CMsvSession& aMsvSession, TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32=TTimeIntervalMicroSeconds32(30000000));

Description

Gets a CMtmUiDataRegistry object. The client should delete this object when it is no longer required.

The registry keeps a reference count of the number of instances of each MTM in use. When that reference count falls to zero, the DLL that provides the MTM is unloaded. However, this is not done immediately, but only after the time specified in aTimeoutMicroSeconds32. This increases efficiency in cases where the DLL is required again shortly.

Parameters

CMsvSession& aMsvSession The client’s Message Server session TTimeIntervalMicroSeconds32 aTimeoutMicroSeconds32=TTimeIntervalMicroSeconds32(30000000) Time to wait before unloading MTM DLLs

Return value

CMtmUiDataRegistry* A pointer to a newly allocated and initialised object

Leave codes

KErrNoMemory A memory allocation failed

CBaseMtmUiData* NewMtmUiDataLayerL(TUid aMtmTypeUid);

Description

Creates a UI Data MTM object for the MTM specified by aMtmTypeUid.

The client should delete the returned object when it is no longer required.

Parameters

TUid aMtmTypeUid UID of MTM to obtain

Return value

CBaseMtmUiData* UI Data MTM object for specified MTM

Leave codes

KErrNotFound aMtmTypeUid does not specify a registered MTM KErrNoMemory A memory allocation failed KErrBadLibraryEntryPoint Malformed MTM: a library entry point was not of the required type DLL loading error codes The DLL that provides the MTM cannot be loaded