1 /*

     2 * Copyright (c) 2005-2009 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:  Property conditions for boolean property values

    15 *

    16 */

    17 

    18 

    19 #ifndef __MDEBOOLPROPERTYCONDITION_H__

    20 #define __MDEBOOLPROPERTYCONDITION_H__

    21 

    22 

    23 #include <mdepropertycondition.h>

    24 

    25 /* Forward declarations. */

    26 class CMdEPropertyDef;

    27 class CMdCSerializationBuffer;

    28 

    29 /**

    30  * Property conditions for boolean property values. The condition is true 

    31  * when the property's value matches the condition's boolean value.

    32  */

    33 NONSHARABLE_CLASS(CMdEBoolPropertyCondition) : public CMdEPropertyCondition

    34 	{

    35 	public:

    36 

    37 	/**

    38 	 *  First-phase constructor

    39 	 */

    40 	static CMdEBoolPropertyCondition* NewL( const CMdEPropertyDef& aPropertyDef, 

    41             TBool aValue );

    42 

    43 	/**

    44 	 *  First-phase constructor

    45 	 */

    46 	static CMdEBoolPropertyCondition* NewLC( const CMdEPropertyDef& aPropertyDef, 

    47             TBool aValue );

    48 

    49 	/**

    50 	 * Destructor.

    51 	 */

    52 	virtual ~CMdEBoolPropertyCondition();

    53 

    54 

    55 	/* Methods. */

    56 

    57     /**

    58      * Returns the boolean condition value.

    59      */

    60     IMPORT_C TBool Value() const;

    61 

    62     /**

    63      * Get possible query's internal optimization flags from condition.

    64      *

    65      * @param aFlaga query's internal optimization flags

    66      * @return last level internal optimization flags

    67      */

    68     TUint32 InternalQueryOptimizationFlags(TUint32& aFlags);

    69 

    70     /**

    71      * Get required size of serialized buffer when this is serialized.

    72      *

    73      * @return required size of serialized buffer

    74      */

    75     TUint32 RequiredBufferSize() const;

    76 

    77     /**

    78      * Serialize own data to serialized buffer (correct position must be set 

    79      * before calling) and return new position of serialized buffer.

    80 	 *

    81      * @param aBuffer  serialized buffer.

    82      */

    83     void SerializeL(CMdCSerializationBuffer& aBuffer,

    84     		TMdCOffset& aFreespaceOffset) const;

    85     

    86 private:

    87 	/**

    88 	 * Constructor. 

    89 	 *

    90 	 * @param aValue  boolean value

    91 	 */

    92 	CMdEBoolPropertyCondition(const CMdEPropertyDef& aPropertyDef, 

    93                               TBool aValue);

    94 

    95 	/**

    96 	 * Second-phase constructor.

    97 	 */

    98 	void ConstructL();

    99 

   100 private:

   101 

   102     /** The boolean value to compare against. */

   103     TBool iValue;

   104     };

   105 

   106 #endif  // __MDEBOOLPROPERTYCONDITION_H__