1 /*

     2 * Copyright (c) 2004-2008 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:  CCFGreater class declaration.

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef C_GREATER_H

    21 #define C_GREATER_H

    22 

    23 // INCLUDES

    24 #include "cfcontextoperation.h"

    25 

    26 #include <e32base.h>

    27 

    28 // FORWARD DECLARATIONS

    29 class CCFContextObject;

    30 

    31 // CLASS DECLARATION

    32 

    33 /**

    34 *   This class implements greater -operation on Context Framework Scripts.

    35 *

    36 *  @lib CFScriptEngine

    37 *  @since Series 60 2.6

    38 */

    39 NONSHARABLE_CLASS( CCFGreater ): public CCFContextOperation

    40     {

    41 public: // Constructors and destructor

    42 

    43     /**

    44     * Creates a CCFGreater object

    45     * @param aServices is the operation services interface for nodes.

    46     * @param aParent is the parent node for this node.

    47     * @param aName is name of the context object this operation operates on.

    48     * @param aSource is the source of the context object this operation

    49     *   operates on.

    50     * @param aType is the interpretation of aCmpVal

    51     * @param aCmpVal is a string representation of the comparison value

    52     * @return a pointer to the created instance of CCFGreater

    53     */

    54     static CCFGreater* NewL( MCFOperationServices& aServices,

    55             CCFOperationNode* aParent,

    56             TDesC& aName,

    57             TDesC& aSource, 

    58             const CCFContextOperation::TCmpType aType,

    59             const TDesC& aCmpVal );

    60 

    61     /**

    62     * Creates a CCFGreater object

    63     * @param aServices is the operation services interface for nodes.

    64     * @param aParent is the parent node for this node.

    65     * @param aName is name of the context object this operation operates on.

    66     * @param aSource is the source of the context object this operation

    67     *   operates on.

    68     * @param aType is the interpretation of aCmpVal

    69     * @param aCmpVal is a string representation of the comparison value

    70     * @return a pointer to the created instance of CCFGreater

    71     */

    72     static CCFGreater* NewLC( MCFOperationServices& aServices,

    73             CCFOperationNode* aParent,

    74             TDesC& aName,

    75             TDesC& aSource, 

    76             const CCFContextOperation::TCmpType aType,

    77             const TDesC& aCmpVal );

    78 

    79     /**

    80     * Creates and parses a CCFGreater instance from an xml node.

    81     * @param aServices is the operation services interface for nodes.

    82     * @param aParent is the parent of this node or NULL if this is a root.

    83     *   The ownership of the parent is not transferred.

    84     * @param aNode is the node to be parsed.

    85     * @return a pointer to the created CCFGreater instance, or NULL if the node

    86     *   is not this greater node. May leave with any system wide error code.

    87     */

    88     static CCFGreater* ParseL( MCFOperationServices& aServices,

    89             CCFOperationNode* aParent,

    90             CMDXMLNode& aNode );

    91 

    92     /**

    93     * Destructor.

    94     */

    95     ~CCFGreater();

    96 

    97 private:

    98 

    99     /**

   100     * C++ default constructor.

   101     */

   102     CCFGreater( MCFOperationServices& aServices,

   103             CCFOperationNode* aParent,

   104             HBufC* aName,

   105             HBufC* aSource, 

   106             const CCFContextOperation::TCmpType aType );

   107 

   108     /**

   109     * By default Symbian 2nd phase constructor is private.

   110     */

   111     void ConstructL( const TDesC& aCmpVal );

   112 

   113 protected: // // From CCFContextOperation

   114 

   115     /**

   116     * Returns ETrue if this operation is true

   117     */

   118     TBool IsTrueL( const CCFContextObject& aContextObject );

   119 

   120 private: // Data

   121 

   122     CCFContextOperation::TCmpType iType;

   123     HBufC*                        iCmpValue;

   124     };

   125 

   126 #endif // C_GREATER_H