OSID - osid.ordering.PriceNotificationSession Service Interface Definition

Interface	osid.ordering.PriceNotificationSession
Implements	`osid.OsidSession`
Used By	`osid.ordering.OrderingManager`
Used By	`osid.ordering.OrderingProxyManager`
Description	This session defines methods to receive notifications on adds/changes to `Price` objects. This session is intended for consumers needing to synchronize their state with this service without the use of polling. Notifications are cancelled when this session is closed. Notifications are triggered with changes to the `Price` object itself. Adding and removing orders result in notifications available from the notification session for orders. Like all `OsidSessions`, `PriceNotificationSessions` are dedicated to single processing threads and a single authenticated user.
Method	getStoreId
Description	Gets the `Store` `Id` associated with this session.
Return	`osid.id.Id`		the `Store Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getStore
Description	Gets the `Store` associated with this session.
Return	`osid.ordering.Store`		the store
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canRegisterForPriceNotifications
Description	Tests if this user can register for `Price` notifications. A return of true does not guarantee successful authorization. A return of false indicates that it is known all methods in this session will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer notification operations.
Return	`boolean`		`false` if notification methods are not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	useFederatedStoreView
Description	Federates the view for methods in this session. A federated view will include prices in stores which are children of this store in the store hierarchy.
Compliance	`mandatory`		This method must be implemented.
Method	useIsolatedStoreView
Description	Isolates the view for methods in this session. An isolated view restricts searches to this store only.
Compliance	`mandatory`		This method must be implemented.
Method	reliablePriceNotifications
Description	Reliable notifications are desired. In reliable mode, notifications are to be acknowledged using `acknowledgePriceNotification()`.
Compliance	`mandatory`		This method must be implemented.
Method	unreliablePriceNotifications
Description	Unreliable notifications are desired. In unreliable mode, notifications do not need to be acknowledged.
Compliance	`mandatory`		This method must be implemented.
Method	acknowledgePriceNotification
Description	Acknowledge a billing notification.
Parameters	`osid.id.Id`	`notificationId`	the `Id` of the notification
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForNewPrices
Description	Register for notifications of new prices. `PriceReceiver.newPrices()` is invoked when a new `Price` is created.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedPrices
Description	Registers for notification of updated prices. `PriceReceiver.changedPrices()` is invoked when a price is changed or prices are changed within it.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedPrice
Description	Registers for notification of an updated price. `PriceReceiver.changedPrices()` is invoked when the specified price is changed or prices are changed within it.
Parameters	`osid.id.Id`	`priceId`	the `Id` of the `Price` to monitor
Errors	NOT_FOUND		a price was not found identified by the given `Id`
	NULL_ARGUMENT		`priceId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedPrices
Description	Registers for notification of deleted prices. `PriceReceiver.deletedPrices()` is invoked when a price is deleted.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedPrice
Description	Registers for notification of a deleted price. `PriceReceiver.deletedPrices()` is invoked when the specified price is deleted.
Parameters	`osid.id.Id`	`priceId`	the `Id` of the `Price` to monitor
Errors	NOT_FOUND		s price was not found identified by the given `Id`
	NULL_ARGUMENT		`priceId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.