--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mds_plat/metadata_engine_api/inc/mdeeventcondition.h	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,202 @@
+/*
+* 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:  Representation of query event condition
+*
+*/
+
+#ifndef __MDEEVENTCONDITION_H__
+#define __MDEEVENTCONDITION_H__
+
+
+#include <mdecondition.h>
+#include <mderange.h>
+
+
+/* Forward declarations. */
+class CMdELogicCondition;
+class CMdEEventDef;
+class CMdEEventDef;
+
+
+/**
+ * Query condition for events. 
+ */
+NONSHARABLE_CLASS(CMdEEventCondition) : public CMdECondition
+	{
+public:
+    
+	/* Constructors and destructor. */
+
+	/**
+	 * Create new CMdEEventCondition from serialized buffer
+	 *
+	 * @return new CMdEEventCondition
+	 */
+	static CMdEEventCondition* NewL( TItemId aEventId = KNoId,
+			const CMdEEventDef* aEventDef = NULL,
+			const TMdETimeRange* aCreationTimeRange = NULL,
+			TEventConditionCompareMethod aCompareMethod  = EEventConditionCompareNone,
+            const TDesC* aString = NULL );
+	
+	/**
+	 * Create new CMdEEventCondition from serialized buffer and leaves it on stack
+	 *
+	 * @return new CMdEEventCondition
+	 */
+	static CMdEEventCondition* NewLC( TItemId aEventId = KNoId,
+			const CMdEEventDef* aEventDef = NULL,
+			const TMdETimeRange* aCreationTimeRange = NULL,
+			TEventConditionCompareMethod aCompareMethod  = EEventConditionCompareNone,
+            const TDesC* aString = NULL );
+
+	/**
+	 * Destructor.
+	 */
+	virtual ~CMdEEventCondition();
+
+
+	/* Methods. */
+
+    /**
+     * Returns the logic condition root node of the conditions defined for
+     * the object which the event is attached to.
+     *
+     * @return  Logic condition.
+     */
+    IMPORT_C CMdELogicCondition& ObjectConditionsL();
+
+    /**
+     * Returns the logic condition root node of the condition defined for
+     * the object whose URI matches the source URI of the event.
+     */
+    IMPORT_C CMdELogicCondition& SourceObjectConditionsL();
+
+    /**
+     * Returns the logic condition root node of the condition defined for
+     * the object whose URI matches the source URI of the event.
+     */
+    IMPORT_C CMdELogicCondition& ParticipantObjectConditionsL();
+
+    /**
+     * Returns the event ID that the condition matches against.
+     *
+     * @return  Event ID.
+     */
+    IMPORT_C TItemId EventId() const;
+
+    /**
+     * Returns the event definition that the condition matches against.
+     *
+     * @return  Event definition. <code>NULL</code>, if not defined.
+     */
+    IMPORT_C const CMdEEventDef* EventDef() const;
+    
+    /** 
+     * Returns the creation time range of the condition. 
+     *
+     * @return  Pointer to the time range. <code>NULL</code>, 
+     *          if not defined.
+     */
+    IMPORT_C const TMdETimeRange* TimeRange() const;
+
+    /** 
+     * Returns the source URI the condition matches against.
+     * 
+     * @return  Source URI. <code>NULL</code>, if not defined. 
+     */
+    IMPORT_C const TDesC* SourceURI() const;
+
+    /** 
+     * Returns the participant URI the condition matches against.
+     * 
+     * @return  Participant URI. <code>NULL</code>, if not defined. 
+     */
+    IMPORT_C const TDesC* ParticipantURI() 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 it is serialized.
+     *
+     * @return required serialized buffer size
+     */
+	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.
+     */
+    void SerializeL(CMdCSerializationBuffer& aBuffer,
+    		TMdCOffset& aFreespaceOffset) const;
+
+private:
+
+    /* Private methods. */
+
+  	/**
+	 * Constructor for a condition that requires that the event ID a 
+     * certain ID or event is of a certain type.
+     *
+     * @param aEventId  Event ID.
+     * @param aEventDef  Event definition.
+	 */
+	CMdEEventCondition(TItemId aEventId, const CMdEEventDef* aEventDef);
+
+    /**
+	 * Second-phase constructor. Pass <code>NULL</code> in parameters that
+	 * are not needed.
+     *
+     * @param aCreationTimeRange  Range for the creation time.
+     * @param aCompareMethod      Comparison method for the string.
+     * @param aString             Text string to match.
+	 */
+    void ConstructL(const TMdETimeRange* aCreationTimeRange,
+                    TEventConditionCompareMethod aCompareMethod = EEventConditionCompareNone, 
+                    const TDesC* aString = 0);
+
+private:
+
+	const TItemId iEventId;
+
+    /** Event definition to match. <code>NULL</code>, if not defined. */
+    const CMdEEventDef* iEventDef;
+
+    /** Conditions for the object which the event is associated with. */
+    CMdELogicCondition* iObjectConditions;
+
+    /** Creation time range. <code>NULL</code>, if not defined. */
+    TMdETimeRange* iCreationTimeRange;
+
+    /** Source of participant URI to match. <code>NULL</code>, if not defined. */
+    HBufC* iURI;
+
+    /** Conditions for the object whose URI matches the source URI. */
+    CMdELogicCondition* iSourceConditions;
+
+    /** Conditions for the object whose URI matches the participant URI. */
+    CMdELogicCondition* iParticipantConditions;
+
+	/** Method of comparison. */
+	TEventConditionCompareMethod iCompareMethod;
+    };
+
+#endif  // __MDEEVENTCONDITION_H__