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CResolver Class Reference

class CResolver : public CBase

Abstract base class which is used to identify the correct interface implementation based on criteria supplied by the client. This base class can be used to write a client specific resolver, however this is not required as a default implementation is provided within ECom.

Inherits from

CResolver
- CBase

Public Member Functions
TUid	IdentifyImplementationL ( TUid , const TEComResolverParams &)
RImplInfoArray *	ListAllL ( TUid , const TEComResolverParams &)
RImplInfoArray &	ListAllL ( TUid )

Protected Member Functions
	CResolver ( MPublicRegistry &)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Protected Attributes
const MPublicRegistry &	iRegistry

Constructor & Destructor Documentation

CResolver(MPublicRegistry &)

CResolver

(

MPublicRegistry &

aRegistry

)

[protected, inline, explicit]

Intended Usage : Standardized default c'tor Error Condition : None

Since: 7.0

Post-condition: CResolver is fully constructed

Parameters

MPublicRegistry & aRegistry

Member Functions Documentation

IdentifyImplementationL(TUid, const TEComResolverParams &)

TUid	IdentifyImplementationL	(	TUid	aInterfaceUid,
			const TEComResolverParams &	aAdditionalParameters
		)	const [pure virtual]

Intended Usage : Request that the resolver identify the most appropriate interface implementation. Error Condition : Depends on implementation.

Since: 7.0

Pre-condition: This object is fully constructed.

Parameters

TUid aInterfaceUid	The interface for which an implementation is requested
const TEComResolverParams & aAdditionalParameters	The parameters which must match for an implementation to be suitable

ListAllL(TUid, const TEComResolverParams &)

RImplInfoArray *	ListAllL	(	TUid	aInterfaceUid,
			const TEComResolverParams &	aAdditionalParameters
		)	const [pure virtual]

Intended Usage : List all the implementations which satisfy the specified interface definition and the resolve parameters supplied. Error Condition : Depends on implementation.

Since: 7.0

Pre-condition: Object is fully constructed and initialized

Post-condition: Registry contents are not modified but registry keys may be updated

Parameters

TUid aInterfaceUid	The interface for which implementations are requested
const TEComResolverParams & aAdditionalParameters	The parameters which must match for an implementation to be suitable

ListAllL(TUid)

RImplInfoArray &

ListAllL

(

TUid

aInterfaceUid

)

const [inline]

Intended Usage : List all the implementations which satisfy the specified interface. Error Condition : CRegistryData::ListImplementationsL

Since: 7.0

Pre-condition: Object is fully constructed and initialized

Post-condition: Registry contents are not modified but registry keys may be updated

Parameters

TUid aInterfaceUid

The interface for which implementations are requested

Member Data Documentation

const MPublicRegistry & iRegistry

const MPublicRegistry &

iRegistry

[protected]

A reference to the instantiated registry information