--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contextframework/cfw/inc/cfservices/CFContextQueryImpl.h	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,168 @@
+/*
+* Copyright (c) 2002-2006 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:  
+*
+*/
+
+
+#ifndef C_CFCONTEXTQUERYIMPL_H
+#define C_CFCONTEXTQUERYIMPL_H
+
+#include "cfcontextquery.h"    // defs type & source lengths
+
+class RWriteStream;
+class RReadStream;
+
+/**
+* CCFContextQuery implementation.
+*
+* @lib CFServices.lib
+* @since S60 5.0
+*/
+NONSHARABLE_CLASS( CCFContextQueryImpl ): public CCFContextQuery
+    {
+            
+    public:
+    
+        /**
+        * Two phased constructor.
+        * Takes a source and type of the queried context as
+        * a parameter.
+        *
+        * @since S60 5.0
+        * @param aSource Context source.
+        * @param aType Context Type.
+        * @return CCFContextQuery*
+        */
+        IMPORT_C static CCFContextQueryImpl* NewL( const TDesC& aSource,
+            const TDesC& aType );
+        IMPORT_C static CCFContextQueryImpl* NewLC( const TDesC& aSource,
+            const TDesC& aType );
+            
+        // Destructor
+        ~CCFContextQueryImpl();
+    
+    public: // From base classes
+    
+        // @see CCFContextQuery
+        void SetTypeL( const TDesC& aType );
+			
+        // @see CCFContextQuery
+        const TDesC& Type() const;
+			
+        // @see CCFContextQuery
+        void SetSourceL( const TDesC& aSource );
+			
+        // @see CCFContextQuery
+        const TDesC& Source() const;
+			
+        // @see CCFContextQuery
+        void SetSubTypeMatch( TBool aMatchSubTypes );
+			
+        // @see CCFContextQuery
+        TBool SubTypeMatch() const;
+			
+    public:
+
+        /**
+        * Internalizes object.
+        *
+        * @since S60 5.0
+        * @param aStream Stream from which to internalize.
+        * @return None.
+        */
+        IMPORT_C void InternalizeL( RReadStream& aStream );
+
+        /**
+        * Externalizes object.
+        * 
+        * @since S60 5.0
+        * @param aStream Stream where to externalize.
+        * @return None
+        */
+        IMPORT_C void ExternalizeL( RWriteStream& aStream );
+
+        /**
+        * Gets object size in bytes.
+        *
+        * @since S60 5.0
+        * @param None
+        * @return TInt
+        */
+        IMPORT_C TInt Size() const;
+
+        /**
+        * Checks if a context source and context type matches this query.
+        * 
+        * @since S60 5.0
+        * @param aContextType Context type to match.
+        * @param aContextSource Context source to match.
+        * @return ETrue if a match.
+        */
+        IMPORT_C TBool Matches( const TDesC& aContextType, 
+            const TDesC& aContextSource ) const;
+
+        /**
+        * Checks if a particular query matches a context source,
+        * context type and sub type match.
+        * 
+        * @since S60 5.0
+        * @param aQuery Query to match with.
+        * @param aContextType Context type to match with query.
+        * @param aContextSource Context source to match with query.
+        * @param aMatchSubTypes Match sub types flag.
+        * @return ETrue if a match.
+        */
+        IMPORT_C static TBool MatchesQuery( const CCFContextQuery& aQuery,
+			const TDesC& aContextType,
+			const TDesC& aContextSource,
+			TBool aMatchSubTypes );
+
+        /**
+        * Checks if tow queries are the same.
+        *
+        * @since S60 5.0
+        * @param aQuery1 First query.
+        * @param aQuery2 Second query.
+        * @return ETrue if a match.
+        */
+        IMPORT_C static TBool IsSame( const CCFContextQuery& aQuery1,
+			const CCFContextQuery& aQuery2 );
+			
+    private:
+    
+        CCFContextQueryImpl();
+        void ConstructL( const TDesC& aSource, const TDesC& aType );
+
+    private: // Data
+
+        /** 
+        * The (URI or semantic description of the) source from which the
+        * context originates.
+        */
+        HBufC* iSource;
+
+        /**
+        * One context category description.
+        * Example: <code>Environment.Temperature</code>
+        */
+        HBufC* iType;
+
+        /**
+        * Are subtypes are matched by this query.
+        */
+        TBool iMatchSubTypes;
+    };
+
+#endif