CResolver Class Reference

#include <ecom/resolver.h>

class CResolver : public CBase

Inherits from

  • CResolver
    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.
    ParameterDescription
    aInterfaceUidThe interface for which an implementation is requested
    aAdditionalParametersThe parameters which must match for an implementation to be suitable

    Returns: 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
    ParameterDescription
    aInterfaceUidThe interface for which implementations are requested
    aAdditionalParametersThe parameters which must match for an implementation to be suitable

    Returns: 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
    ParameterDescription
    aInterfaceUidThe interface for which implementations are requested

    Returns: Array of suitable implementations

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