OSID - osid.tracking.FrontOfficeNotificationSession Service Interface Definition

Interface	osid.tracking.FrontOfficeNotificationSession
Implements	`osid.OsidSession`
Used By	`osid.tracking.TrackingManager`
Used By	`osid.tracking.TrackingProxyManager`
Description	This session defines methods to receive notifications on adds/changes to `FrontOffice` 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.
Method	canRegisterForFrontOfficeNotifications
Description	Tests if this user can register for `FrontOffice` 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	reliableFrontOfficeNotifications
Description	Reliable notifications are desired. In reliable mode, notifications are to be acknowledged using `acknowledgeFrontOfficeNotification()`.
Compliance	`mandatory`		This method is must be implemented.
Method	unreliableFrontOfficeNotifications
Description	Unreliable notifications are desired. In unreliable mode, notifications do not need to be acknowledged.
Compliance	`mandatory`		This method is must be implemented.
Method	acknowledgeFrontOfficeNotification
Description	Acknowledge a front office 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	registerForNewFrontOffices
Description	Register for notifications of new frontOffices. `FrontOfficeReceiver.newFrontOffices()` is invoked when a new `FrontOffice` is created.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedFrontOffices
Description	Registers for notification of updated frontOffices. `FrontOfficeReceiver.changedFrontOffices()` is invoked when a front office is changed.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedFrontOffice
Description	Registers for notification of an updated front office. `FrontOfficeReceiver.changedFrontOffices()` is invoked when the specified front office is changed.
Parameters	`osid.id.Id`	`frontOfficeId`	the Id of the `FrontOffice` to monitor
Errors	NULL_ARGUMENT		`frontOfficeId is null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedFrontOffices
Description	Registers for notification of deleted frontOffices. `FrontOfficeReceiver.deletedFrontOffices()` is invoked when a front office is deleted.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedFrontOffice
Description	Registers for notification of a deleted front office. `FrontOfficeReceiver.deletedFrontOffices()` is invoked when the specified front office is deleted.
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice` to monitor
Errors	NULL_ARGUMENT		`frontOfficeId is null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedFrontOfficeHierarchy
Description	Registers for notification of an updated front office hierarchy structure. `FrontOfficeReceiver.changedChildOfFrontOffices()` is invoked when the specified node or any of its descendants experiences a change in its children.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedFrontOfficeHierarchyForAncestors
Description	Registers for notification of an updated front office hierarchy structure. `FrontOfficeReceiver.changedChildOfFrontOffices()` is invoked when the specified node or any of its descendants experiences a change in its children.
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice` node to monitor
Errors	NULL_ARGUMENT		`frontOfficeId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedFrontOfficeHierarchyForDescendants
Description	Registers for notification of an updated front office hierarchy structure. `FrontOfficeReceiver.changedChildOfFrontOffices()` is invoked when the specified node or any of its descendants experiences a change in its children.
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice` node to monitor
Errors	NULL_ARGUMENT		`frontOfficeId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.