diff -r c39a6cfd1fb9 -r be09cf1f39dd smf/smfservermodule/smfserver/smfplugins/smfplaylistserviceplugin.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smf/smfservermodule/smfserver/smfplugins/smfplaylistserviceplugin.h	Tue May 18 17:37:12 2010 +0530
@@ -0,0 +1,108 @@
+/**
+ * Copyright (c) 2010 Sasken Communication Technologies Ltd.
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of the "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:
+ * Chandradeep Gandhi, Sasken Communication Technologies Ltd - Initial contribution
+ *
+ * Contributors:
+ * Manasij Roy, Nalina Hariharan
+ * 
+ * Description:
+ * Interface specification for playlists service
+ *
+ */
+
+
+#ifndef SMFPLAYLISTSERVICEPLUGIN_H_
+#define SMFPLAYLISTSERVICEPLUGIN_H_
+
+#include <smfpluginbase.h>
+#include <smfplaylist.h>
+#include <smfmusicprofile.h>
+#include <smftrackinfo.h>
+
+/**
+ * @ingroup smf_plugin_group
+ * 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 SmfPluginBase
+	{
+public:
+	/**
+	 * Destructor
+	 */
+	virtual ~SmfPlaylistServicePlugin( ) {}
+	
+	/**
+	 * 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 = SMF_FIRST_PAGE, 
+			const int aItemsPerPage = SMF_ITEMS_PER_PAGE ) = 0;
+	
+	/**
+	 * Method to get the playlist of a particular user
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aUser The user whose playlists need to be fetched
+	 * @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( SmfPluginRequestData &aRequest,
+			const SmfMusicProfile &aUser,
+			const int aPageNum = SMF_FIRST_PAGE, 
+			const int aItemsPerPage = SMF_ITEMS_PER_PAGE ) = 0;
+	
+	/**
+	 * Method to add tracks to a playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPlaylist The playlist where tracks should be added
+	 * @param aTracks The tracks to be added to the playlist
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError addToPlaylist( SmfPluginRequestData &aRequest,
+			const SmfPlaylist &aPlaylist, 
+			const QList<SmfTrackInfo> &aTracks ) = 0;
+	
+	/**
+	 * Method to post the current playing playlist
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aPlaylist The current playing playlist which should be posted
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError postCurrentPlayingPlaylist(
+			SmfPluginRequestData &aRequest, 
+			const SmfPlaylist &aPlaylist ) = 0;
+	
+	/**
+	 * Customised method for SmfPlaylistServicePlugin interface
+	 * @param aRequest [out] The request data to be sent to network
+	 * @param aOperation The operation type (should be known between 
+	 * the client interface and the plugin)
+	 * @param aData The data required to form the request (The type 
+	 * of data should be known between client and the plugin)
+	 * @return SmfPluginError Plugin error if any, else SmfPluginErrNone
+	 */
+	virtual SmfPluginError customRequest( SmfPluginRequestData &aRequest, 
+			const int &aOperation, QByteArray *aData ) = 0;
+	
+	};
+
+Q_DECLARE_INTERFACE( SmfPlaylistServicePlugin, "org.symbian.smf.plugin.music.playlist/v1.0" );
+
+#endif /* SMFPLAYLISTSERVICEPLUGIN_H_ */