1 /*

     2 * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef C_HNMDQUERY_H

    21 #define C_HNMDQUERY_H

    22 

    23 #include <e32base.h>

    24 #include <xmlengelement.h>

    25 

    26 #include "hnglobals.h"

    27 

    28 class CHnMdServiceCommand;

    29 class CHnMdBaseKey;

    30 class CLiwGenericParamList;

    31 class CHnMdService;

    32 

    33 /**

    34  * Query.

    35  * 

    36  * This class represents the query.

    37  * 

    38  * This class allows sending queries to different services.

    39  * 

    40  * Queries are mostly used during evaluation.

    41  *

    42  * @lib hnmetadatamodel

    43  * @since S60 5.0 *** for example, S60 v3.0

    44  * @ingroup group_hnmetadatamodel

    45  */

    46 NONSHARABLE_CLASS(CHnMdQuery) : public CBase

    47     {

    48 public:

    49 

    50     /**

    51      * Two-phase constructor.

    52      *

    53      * @since S60 5.0

    54      * @param aElement Xml element.

    55      * @return Fully cosntructed object.

    56      */

    57     static CHnMdQuery* NewL( TXmlEngElement aElement );

    58 

    59     /**

    60      * Two-phase constructor.

    61      *

    62      * @since S60 5.0

    63      * @param aElement Xml element.

    64      * @return Fully cosntructed object.

    65      */

    66     static CHnMdQuery* NewLC( TXmlEngElement aElement );

    67 

    68     /**

    69      * Standard C++ virtual destructor.

    70      *

    71      * @since S60 5.0

    72      */

    73     virtual ~CHnMdQuery();

    74 

    75     /**

    76      * Gets namespace.

    77      *

    78      * @since S60 5.0

    79      * @return Namespace.

    80      */

    81     const TDesC& NameSpace() const;

    82     

    83     /**

    84      * Gets namespace.

    85      *

    86      * @since S60 5.0

    87      * @return Service object.

    88      */

    89     CHnMdService& GetService() const;

    90     

    91 private:

    92 

    93     /**

    94      * Standard C++ constructor.

    95      *

    96      * @since S60 5.0

    97      */

    98     CHnMdQuery();

    99 

   100     /**

   101      * Standard symbian 2nd phase constructor.

   102      *

   103      * @since S60 5.0

   104      * @param aElement Xml element.

   105      */

   106     void ConstructL(TXmlEngElement aElement);

   107     

   108      /**

   109      * Sets namespace.

   110      *

   111      * @since S60 5.0

   112      * @param aNameSpace Namespace descriptor.

   113      */

   114     void SetNameSpaceL( const TDesC& aNameSpace );

   115 

   116     /**

   117      * Sets namespace.

   118      *

   119      * @since S60 5.0

   120      * @param aAttr Xml attribute.

   121      */

   122     void SetNameSpaceL( TXmlEngAttr aAttr );

   123     

   124 private: // data

   125 

   126     /**

   127      * Own - Namespace.

   128      */

   129     RBuf iNameSpace;

   130 

   131     /**

   132      * Own - service object.

   133      */

   134     CHnMdService* iService;

   135        

   136     };

   137 

   138 #endif // C_HNMMQUERY_H