CResolver Class Reference

#include <ecom/resolver.h>

class CResolver : public CBase

Inherits from

Protected Attributes
const MPublicRegistry &iRegistry
Public Member Functions
pure virtual TUid IdentifyImplementationL(TUid, const TEComResolverParams &)
pure virtual 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()

Detailed Description

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.

Member Attribute Documentation

iRegistry

const MPublicRegistry &iRegistry[protected]

A reference to the instantiated registry information

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

Member Function Documentation

IdentifyImplementationL ( TUid, const TEComResolverParams & )

TUid IdentifyImplementationL(TUidaInterfaceUid,
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
aInterfaceUidThe interface for which an implementation is requested
aAdditionalParametersThe parameters which must match for an implementation to be suitable
Return Value
The unique Id of the implementation which satisfies the specified parameters.

ListAllL ( TUid, const TEComResolverParams & )

RImplInfoArray *ListAllL(TUidaInterfaceUid,
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
aInterfaceUidThe interface for which implementations are requested
aAdditionalParametersThe parameters which must match for an implementation to be suitable
Return Value
Pointer to an array of suitable implementations. Ownership of this array is passed to the calling function.

ListAllL ( TUid )

RImplInfoArray &ListAllL(TUidaInterfaceUid)const [inline]

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

See also: 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
aInterfaceUidThe interface for which implementations are requested
Return Value
Array of suitable implementations
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