--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mds_plat/metadata_engine_api/inc/mdepropertycondition.h Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,116 @@
+/*
+* Copyright (c) 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: Represent property condition
+*
+*/
+
+#ifndef __MDEPROPERTYCONDITION_H__
+#define __MDEPROPERTYCONDITION_H__
+
+#include <mdecondition.h>
+
+/* Forward declarations. */
+class CMdEPropertyDef;
+class CMdCSerializationBuffer;
+
+/**
+ * CMdEPropertyCondition is the base class for all property conditions.
+ * Instances of CMdEPropertyCondition and its subclasses are always associated
+ * with a property definition.
+ */
+NONSHARABLE_CLASS(CMdEPropertyCondition) : public CMdECondition
+ {
+public:
+
+ /* Types. */
+
+ /**
+ * Two-phased constructor.
+ */
+ static CMdEPropertyCondition* NewL( const CMdEPropertyDef& aPropertyDef );
+
+ /**
+ * Two-phased constructor.
+ */
+ static CMdEPropertyCondition* NewLC( const CMdEPropertyDef& aPropertyDef );
+
+
+ /**
+ * Destructor.
+ */
+ virtual ~CMdEPropertyCondition();
+
+
+ /* Methods. */
+
+ /**
+ * Returns the property definition of the condition.
+ *
+ * @return Property definition.
+ */
+ IMPORT_C const CMdEPropertyDef& PropertyDef() const;
+
+ /**
+ * Get possible query's internal optimization flags from condition.
+ *
+ * @param aFlaga query's internal optimization flags
+ * @return last level internal optimization flags
+ */
+ TUint32 InternalQueryOptimizationFlags(TUint32& aFlags);
+
+ /**
+ * Get required size of serialized buffer when this is serialized.
+ *
+ * @return required size of serialized buffer
+ */
+ virtual TUint32 RequiredBufferSize() const;
+
+ /**
+ * Serialize own data to serialized buffer (correct position must be set
+ * before calling) and return new position of serialized buffer.
+ *
+ * @param aBuffer serialized buffer.
+ */
+ virtual void SerializeL(CMdCSerializationBuffer& aBuffer,
+ TMdCOffset& aFreespaceOffset) const;
+
+protected:
+
+ /**
+ * Constructor for a condition that tests the existence of properties.
+ *
+ * @param aPropertDef Property definition.
+ */
+ CMdEPropertyCondition(const CMdEPropertyDef& aPropertyDef);
+
+ /**
+ * Second-phase constructor.
+ */
+ void ConstructL();
+
+ /**
+ * Constructor that sets the condition type as well.
+ *
+ * @param aType Type of the condition node.
+ */
+ CMdEPropertyCondition(TConditionType aConditionType,
+ const CMdEPropertyDef& aPropertyDef);
+
+protected:
+
+ /** The property this condition operates on. */
+ const CMdEPropertyDef& iPropertyDef;
+ };
+
+#endif // __MDEPROPERTYCONDITION_H__