1 // Copyright (c) 1998-2009 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 // SQL NULL-predicate node class

    15 // 

    16 //

    17 

    18 #include "UQ_STD.H"

    19 

    20 // class CSqlNullPredicate

    21 

    22 CSqlNullPredicate::CSqlNullPredicate(TType aType,const TDesC& aColumn)

    23 	: CSqlBoundNode(aType,aColumn)

    24 	{

    25 	__ASSERT(aType==EIsNull||aType==EIsNotNull);

    26 	}

    27 

    28 TBool CSqlNullPredicate::EvaluateL(const TTextOps&) const

    29 	{

    30 	__ASSERT(IsBound());

    31 	TBool null=Column().IsNull();

    32 	return NodeType()==EIsNull ? null : !null;

    33 	}

    34