diff -r c53acadfccc6 -r acef663c1218 mds_plat/metadata_engine_api/inc/mdeobjectdef.h
--- a/mds_plat/metadata_engine_api/inc/mdeobjectdef.h	Mon Jan 18 20:34:07 2010 +0200
+++ b/mds_plat/metadata_engine_api/inc/mdeobjectdef.h	Tue Jan 26 12:13:20 2010 +0200
@@ -116,7 +116,31 @@
 	CMdEPropertyDef* GetPropertyDefL(const TDesC& aName, CMdEObjectDef* aChild);
 
 	void ConstructL(CMdCSerializationBuffer& aSchemaBuffer);
+	
+    /**
+     * Compares two properties.
+     *
+     * @param aFirst   First property.
+     * @param aSecond  Second property.
+     *
+     * @return  0, if the properties are equal;
+     *          a negative value, if the first property is less than the second;
+     *          a positive value, if the first property is greater than the second.
+     */
+    static TInt CompareProperties( const CMdEPropertyDef& aFirst, const CMdEPropertyDef& aSecond );
 
+    /**
+     * Compares two properties.
+     *
+     * @param aFirst   First property id.
+     * @param aSecond  Second property.
+     *
+     * @return  0, if the properties are equal;
+     *          a negative value, if the first property is less than the second;
+     *          a positive value, if the first property is greater than the second.
+     */
+    static TInt CompareProperties( const TDefId* aFirst, const CMdEPropertyDef& aSecond );
+    
 private:
 	const TMdCObjectDef& iObjectDef;
 	CMdENamespaceDef& iNamespaceDef;