1 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __REGISTRYRESOLVETRANSACTION_H__

    17 #define __REGISTRYRESOLVETRANSACTION_H__

    18 

    19 #include <e32base.h>

    20 #include <ecom/implementationinformation.h>

    21 //

    22 // Forward declarations

    23 

    24 class CRegistryData;

    25 

    26 //

    27 // CRegistryResolveTransaction class

    28 

    29 /**

    30 @internalComponent

    31 This class facilitates filtering in the CRegistryDataClass. It does this by accepting 

    32 filter parameters when the resolve transaction is created. During the course of the 

    33 resolution these filter parameters will be passed to CRegistryData.

    34 */

    35 class CRegistryResolveTransaction : public CBase, public MPublicRegistry

    36 	{

    37 public:

    38 	static CRegistryResolveTransaction* NewL(CRegistryData &aRegistryData,

    39 											 const RExtendedInterfacesArray& aExtendedInterfaces, 

    40 											 const TClientRequest& aClientRequest, TBool aCapability);

    41 	virtual ~CRegistryResolveTransaction();

    42 public:   

    43 	RImplInfoArray& ListImplementationsL(TUid aInterfaceUid) const;

    44 

    45 private:

    46 	CRegistryResolveTransaction(CRegistryData &aRegistryData,

    47 								const RExtendedInterfacesArray& aExtendedInterfaces, 

    48 								const TClientRequest& aClientRequest,TBool aCapability);

    49 	void ListImplementationsL(CImplementationInformation* implInfo,CRegistryData::CDllData *aDll) const;

    50 private:

    51 	// A reference to the registry data

    52 	CRegistryData &iRegistryData;

    53     // A pointer to the extended interfaces to filter on

    54     const RExtendedInterfacesArray* iExtendedInterfaces;

    55     // A pointer to the client request data for capability check

    56     const TClientRequest* iClientRequest;

    57     // Array to hold the filtered results. Must make this mutable so as to not

    58     // change the ListImplementationsL interface which has been published.

    59     mutable RImplInfoArray iImplementationInfo;

    60     // A boolean value for storing the client's capability request 

    61     // ETrue capability check is done

    62     // EFalse capability check is not done

    63     TBool iCapability; 

    64 	};

    65 #endif //__REGISTRYRESOLVETRANSACTION_H__