+ //! Store a user setting persistently
+ /**
+ * \param userId The users Id
+ * \param settingName The Name of the Setting
+ * \param data The Value
+ */
+ virtual void setUserSetting(UserId userId, const QString &settingName, const QVariant &data) = 0;
+
+ //! Retrieve a persistent user setting
+ /**
+ * \param userId The users Id
+ * \param settingName The Name of the Setting
+ * \param default Value to return in case it's unset.
+ * \return the Value of the Setting or the default value if it is unset.
+ */
+ virtual QVariant getUserSetting(UserId userId, const QString &settingName, const QVariant &data = QVariant()) = 0;
+
+ /* Identity handling */
+ virtual IdentityId createIdentity(UserId user, CoreIdentity &identity) = 0;
+ virtual bool updateIdentity(UserId user, const CoreIdentity &identity) = 0;
+ virtual void removeIdentity(UserId user, IdentityId identityId) = 0;
+ virtual QList<CoreIdentity> identities(UserId user) = 0;
+
+ /* Network handling */
+
+ //! Create a new Network in the storage backend and return it unique Id
+ /** \param user The core user who owns this network
+ * \param networkInfo The networkInfo holding the network definition
+ * \return the NetworkId of the newly created Network. Possibly invalid.
+ */
+ virtual NetworkId createNetwork(UserId user, const NetworkInfo &info) = 0;
+
+ //! Apply the changes to NetworkInfo info to the storage engine
+ /**
+ * \param user The core user
+ * \param networkInfo The Updated NetworkInfo
+ * \return true if successfull.
+ */
+ virtual bool updateNetwork(UserId user, const NetworkInfo &info) = 0;
+
+ //! Permanently remove a Network and all the data associated with it.
+ /** \note This method is thredsafe.
+ *
+ * \param user The core user
+ * \param networkId The network to delete
+ * \return true if successfull.
+ */
+ virtual bool removeNetwork(UserId user, const NetworkId &networkId) = 0;
+
+ //! Returns a list of all NetworkInfos for the given UserId user
+ /** \note This method is thredsafe.
+ *
+ * \param user The core user
+ * \return QList<NetworkInfo>.
+ */
+ virtual QList<NetworkInfo> networks(UserId user) = 0;
+
+ //! Get a list of Networks to restore
+ /** Return a list of networks the user was connected at the time of core shutdown
+ * \note This method is threadsafe.
+ *
+ * \param user The User Id in question
+ */
+ virtual QList<NetworkId> connectedNetworks(UserId user) = 0;
+
+ //! Update the connected state of a network
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param isConnected whether the network is connected or not
+ */
+ virtual void setNetworkConnected(UserId user, const NetworkId &networkId, bool isConnected) = 0;
+
+ //! Get a hash of channels with their channel keys for a given network
+ /** The keys are channel names and values are passwords (possibly empty)
+ * \note This method is threadsafe
+ *
+ * \param user The id of the networks owner
+ * \param networkId The Id of the network
+ */
+ virtual QHash<QString, QString> persistentChannels(UserId user, const NetworkId &networkId) = 0;
+
+ //! Update the connected state of a channel
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param channel The name of the channel
+ * \param isJoined whether the channel is connected or not
+ */
+ virtual void setChannelPersistent(UserId user, const NetworkId &networkId, const QString &channel, bool isJoined) = 0;
+
+ //! Update the key of a channel
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param channel The name of the channel
+ * \param key The key of the channel (possibly empty)
+ */
+ virtual void setPersistentChannelKey(UserId user, const NetworkId &networkId, const QString &channel, const QString &key) = 0;
+
+ //! retrieve last known away message for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ */
+ virtual QString awayMessage(UserId user, NetworkId networkId) = 0;
+
+ //! Make away message persistent for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param awayMsg The current away message of own user
+ */
+ virtual void setAwayMessage(UserId user, NetworkId networkId, const QString &awayMsg) = 0;
+
+ //! retrieve last known user mode for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ */
+ virtual QString userModes(UserId user, NetworkId networkId) = 0;
+
+ //! Make our user modes persistent for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param userModes The current user modes of own user
+ */
+ virtual void setUserModes(UserId user, NetworkId networkId, const QString &userModes) = 0;
+