diff -r c39a6cfd1fb9 -r be09cf1f39dd smf/smfservermodule/smfserver/datastoremgr/dsm.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smf/smfservermodule/smfserver/datastoremgr/dsm.h	Tue May 18 17:37:12 2010 +0530
@@ -0,0 +1,86 @@
+/*!	\file 
+	\brief File containing class description for DataStoreManager class.
+	
+	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}".
+
+	\author Jaspinder Singh, Sasken Communication Technologies Ltd - Initial contribution
+
+	\version 0.1
+
+*/
+
+#ifndef DATASTOREMANAGER_H
+#define DATASTOREMANAGER_H
+
+#include <QString>
+#include <QObject>
+#include <QtSql>
+#include "smfSns.h"
+#include "smfSocialProfile.h"
+#include "smfUserProfile.h"
+
+enum DataStoreManagerState{READY, BUSY, CLOSED, ERROR};
+
+//!	\class 	DataStoreManager
+/*!
+	\brief 	Data Store Manager
+	\brief 	Data Store Manager provides the functional interface between the data store and the outside world. 
+			It manages access to the data store and encapsulates prebuilt queries for relation management and makes sure 
+			that the data in persistent storage is always in a consistent state.
+			The DSM implements the Singleton Pattern, which means that only one instance of DSM will be available throughout the system.
+	
+	\warning	Not Thread Safe
+	\warning	Do not subclass
+*/
+class DataStoreManager : public QObject
+{
+	Q_OBJECT
+	
+	public:
+        static DataStoreManager* getDataStoreManager();
+        ~DataStoreManager();
+
+        QList <SMFSocialProfile> getAllRelated(const SMFUserProfile&);
+        SMFSocialProfile getRelatedByService(const SMFUserProfile&, const SMFSocialNetworkingSite&);
+
+        DataStoreManagerState getState() const;
+        QString getError() const;
+
+
+
+        SMFUserProfile getUserProfile(const QString& name, const QString& contact_id);
+        SMFSocialNetworkingSite getSNSEntry(const QString& name);
+        void saveUserProfile(const SMFUserProfile& user_profile);
+        void saveSocialProfile(const SMFSocialProfile& social_profile);
+        void saveSNSEntry(const SMFSocialNetworkingSite& sns);
+        void modifyRelation(SMFSocialProfile& sns, SMFUserProfile& new_user_profile);
+
+
+	public slots:
+        int addUserProfile( SMFUserProfile&);
+        int deleteUserProfile( SMFUserProfile&);
+        int addSocialProfile( SMFSocialProfile&);
+		int deleteSocialProfile(SMFSocialProfile&);
+        int addSNSEntry( SMFSocialNetworkingSite&);
+		int deleteSNSEntry(SMFSocialNetworkingSite&);
+        int createRelation(const SMFUserProfile&, SMFSocialProfile&);
+        int deleteRelation(const SMFUserProfile&, SMFSocialProfile&);
+
+	private:
+        static DataStoreManager* m_dsm_instance;		// Unique Instance for DSM (Singleton Implementation)
+        static const QString db_name;
+        int m_dsm_instance_count; 				// Track references to the DSM
+        static DataStoreManagerState state;				// Current state of DSM
+        QString m_last_msg;					// Last message/error generated by the database.
+        QSqlDatabase db;
+
+        DataStoreManager(const QString& db_name, QObject* parent = 0); 			// Private Constructor.
+        bool InitializeDataBase();				// Initialization code to be called once while lazy construction of the instance
+};
+
+#endif