persistentstorage/dbms/usql/UQ_EVAL.CPP
changeset 0 08ec8eefde2f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/persistentstorage/dbms/usql/UQ_EVAL.CPP	Fri Jan 22 11:06:30 2010 +0200
@@ -0,0 +1,66 @@
+// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// Evaluation tree base classes
+// 
+//
+
+#include "UQ_STD.H"
+
+// class CSqlQuery
+
+CSqlQuery::CSqlQuery()
+	{}
+
+CSqlQuery::~CSqlQuery()
+	{
+	iColumns.Close();
+	delete iSearchCondition;
+	delete iSortSpecification;
+	}
+
+CDbKey& CSqlQuery::SortSpecificationL()
+	{
+	CDbKey* key=iSortSpecification;
+	if (!key)
+		iSortSpecification=key=CDbKey::NewL();
+	return *key;
+	}
+
+void CSqlQuery::RemovePredicate(CSqlCompPredicate* aNode)
+	{
+	CSqlSearchCondition::TType type=iSearchCondition->NodeType();
+	if (type>CSqlSearchCondition::ENotLike && type<CSqlSearchCondition::ENotEqual) 
+		{
+		delete iSearchCondition;
+		iSearchCondition=0;
+		}
+	else if (type==CSqlSearchCondition::EAnd)
+		{
+		CSqlMultiNode* multiNode=iSearchCondition->MultiNode();
+		multiNode->Remove(aNode);
+		iSearchCondition=CSqlMultiNode::Reduce(multiNode);
+		}
+	else
+		__ASSERT(0);
+	}
+
+
+// class CSqlSearchCondition
+
+CSqlSearchCondition::CSqlSearchCondition(TType aType)
+	: iType(aType)
+	{
+	iIsEscape = EFalse;
+	}
+