diff -r 5d2360e70d9f -r 4b1e636e8a71 example/clientapi/smf/inc/smfplugins/smfmusic/smfplaylistserviceplugin.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/example/clientapi/smf/inc/smfplugins/smfmusic/smfplaylistserviceplugin.h	Thu Mar 25 14:44:08 2010 +0530
@@ -0,0 +1,144 @@
+/**
+ * @file	smfplaylistserviceplugin.h
+ * @author  Nalina Hariharan, Sasken Communication Technologies Ltd - Initial contribution
+ * @version 1.0
+ *
+ * @section LICENSE
+ *
+ * Copyright (c) 2010 Sasken Communication Technologies Ltd. 
+ * All rights reserved.
+ * This component and the accompanying materials are made available 
+ * under the terms of the "{License}" 
+ * which accompanies  this distribution, and is available 
+ * at the URL "{LicenseUrl}".
+ * 
+ * @section DESCRIPTION
+ *
+ * Interface specification for playlists service
+ */
+
+#ifndef SMFPLAYLISTSERVICEPLUGIN_H_
+#define SMFPLAYLISTSERVICEPLUGIN_H_
+
+#include <smfproviderbase.h>
+#include <smfplaylist.h>
+#include <smfmusicprofile.h>
+#include <smftrackinfo.h>
+
+/**
+ * Interface specification for playlists service. This class provides 
+ * basic functionality to allow applications to get playlists of a user, 
+ * add some track to an existing playlist, post the current playing 
+ * playlists etc.
+ *
+ * All of the functionality described here should be implemented by a service
+ * specific plug-in.
+ */
+class SmfPlaylistServicePlugin : public QObject
+	{
+	Q_OBJECT
+public:
+	/**
+	 * Constructor with default argument
+	 * @param aParent The parent object
+	 */
+	SmfPlaylistServicePlugin( QObject *aParent = 0 );
+	
+	/**
+	 * Destructor
+	 */
+	~SmfPlaylistServicePlugin( );
+	
+	/**
+	 * Method to get the provider information
+	 * @return Instance of SmfProviderBase
+	 */
+	virtual SmfProviderBase* getProviderInfo( ) = 0;
+	
+	/**
+	 * Method to get the playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPageNum The page to be extracted
+	 * @param aItemsPerPage Number of items per page
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError playlists( 
+			SmfPluginRequestData *aRequest,
+			const int aPageNum = 0, 
+			const int aItemsPerPage = 10) = 0;
+	
+	/**
+	 * Method to get the playlist of a particular user
+	 * @param aUser The user whose playlists need to be fetched
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPageNum The page to be extracted
+	 * @param aItemsPerPage Number of items per page
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError playlistsOf( const SmfMusicProfile aUser,
+			SmfPluginRequestData *aRequest,
+			const int aPageNum = 0, 
+			const int aItemsPerPage = 10) = 0;
+	
+	/**
+	 * Method to add tracks to a playlist
+	 * @param aPlaylist The playlist where tracks should be added
+	 * @param aTracks The tracks to be added to the playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError* addToPlaylist( const SmfPlaylist aPlaylist, 
+			const QList<SmfTrackInfo> aTracks,
+			SmfPluginRequestData *aRequest ) = 0;
+	
+	/**
+	 * Method to post the current playing playlist
+	 * @param aPlaylist The current playing playlist which should be posted
+	 * @param aRequest [out] The request data to be sent to network
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError* postCurrentPlayingPlaylist( 
+			const SmfPlaylist aPlaylist,
+			SmfPluginRequestData *aRequest ) = 0;
+	
+	
+	/**
+	 * Method to get the result for a network request.
+	 * @param aTransportResult The result of transport operation
+	 * @param aReply The QNetworkReply instance for the request
+	 * @param aResult An output parameter to the plugin manager.If the 
+	 * return value is SmfSendRequestAgain, QVariant will be of type 
+	 * SmfPluginRequestData. 
+	 * If last operation was playlists() or playlistsOf(), aResult will be of 
+	 * type QList<SmfPlaylist>
+	 * If last operation was addToPlaylist() or postCurrentPlayingPlaylist(), 
+	 * aResult will be of type bool
+	 * @return SmfPluginRetType
+	 */
+	/**
+	 * Method to get the result for a network request.
+	 * @param aTransportResult The result of transport operation
+	 * @param aReply The QNetworkReply instance for the request
+	 * @param aResult [out] An output parameter to the plugin manager.If the 
+	 * return value is SmfSendRequestAgain, QVariant will be of type 
+	 * SmfPluginRequestData. 
+	 * If last operation was playlists() or playlistsOf(), aResult will be of 
+	 * type QList<SmfPlaylist>
+	 * If last operation was addToPlaylist() or postCurrentPlayingPlaylist(), 
+	 * aResult will be of type bool
+	 * @param aRetType [out] SmfPluginRetType
+	 * @param aIsLastPage [out] true if this the last page, else false
+	 * @return SmfPluginError 
+	 */
+	virtual SmfPluginError responseAvailable( 
+			const SmfTransportResult aTransportResult, 
+			QNetworkReply *aReply, 
+			QVariant* aResult, 
+			SmfPluginRetType aRetType,
+			bool aIsLastPage) = 0;
+	
+	};
+
+Q_DECLARE_INTERFACE( SmfPlaylistServicePlugin, "org.symbian.smf.plugin.music.playlist/v1.0" );
+
+#endif /* SMFPLAYLISTSERVICEPLUGIN_H_ */