OSID - osid.learning.ObjectiveNotificationSession Service Interface Definition

Interface	osid.learning.ObjectiveNotificationSession
Implements	`osid.OsidSession`
Used By	`osid.learning.LearningManager`
Used By	`osid.learning.LearningProxyManager`
Description	This session defines methods to receive asynchronous notifications on adds/changes to `Objectives`. 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. The views defined in this session correspond to the views in the `ObjectiveLookupSession`.
Method	getObjectiveBankId
Description	Gets the `ObjectiveBank` `Id` associated with this session.
Return	`osid.id.Id`		the `ObjectiveBank Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getObjectiveBank
Description	Gets the `ObjectiveBank` associated with this session.
Return	`osid.learning.ObjectiveBank`		the `ObjectiveBank` associated with this session
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canRegisterForObjectiveNotifications
Description	Tests if this user can register for `Objective` 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	useFederatedObjectiveBankView
Description	Federates the view for methods in this session. A federated view will include notifications for objectives in objective banks which are children of this objective bank in the objective bank hierarchy.
Compliance	`mandatory`		This method is must be implemented.
Method	useIsolatedObjectiveBankView
Description	Isolates the view for methods in this session. An isolated view restricts notifications to this objective bank only.
Compliance	`mandatory`		This method is must be implemented.
Method	reliableObjectiveNotifications
Description	Reliable notifications are desired. In reliable mode, notifications are to be acknowledged using `acknowledgeObjectiveNotification()`.
Compliance	`mandatory`		This method is must be implemented.
Method	unreliableObjectiveNotifications
Description	Unreliable notifications are desired. In unreliable mode, notifications do not need to be acknowledged.
Compliance	`mandatory`		This method is must be implemented.
Method	acknowledgeObjectiveNotification
Description	Acknowledge an objective 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	registerForNewObjectives
Description	Register for notifications of new objectives. `ObjectiveReceiver.newObjectives()` is invoked when a new objective is created.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedObjectives
Description	Registers for notification of updated objectives. `ObjectiveReceiver.changedObjectives()` is invoked when an objective is changed.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedObjective
Description	Registers for notification of an updated objective. `ObjectiveReceiver.changedObjectives()` is invoked when the specified objective is changed.
Parameters	`osid.id.Id`	`objectiveId`	the `Id` of the `Objective` to monitor
Errors	NULL_ARGUMENT		`objectiveId is null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedObjectives
Description	Registers for notification of deleted objectives. `ObjectiveReceiver.deletedObjectives()` is invoked when an objective is removed from this objective bank.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedObjective
Description	Registers for notification of a deleted objective. `ObjectiveReceiver.changedObjectives()` is invoked when the specified objective is removed from this objective bank.
Parameters	`osid.id.Id`	`objectiveId`	the `Id` of the `Objective` to monitor
Errors	NULL_ARGUMENT		`objectiveid is null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedObjectiveHierarchy
Description	Registers for notification of an updated objective hierarchy structure. `ObjectiveReceiver.changedChildOfObjectives()` is invoked when a node 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	registerForChangedObjectiveHierarchyForAncestors
Description	Registers for notification of an updated objective hierarchy structure. `ObjectiveReceiver.changedChildOfObjectives()` is invoked when the specified node or any of its ancestors experiences a change in its children.
Parameters	`osid.id.Id`	`objectiveId`	the `Id` of the `Objective` node to monitor
Errors	NULL_ARGUMENT		`objectiveId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForChangedObjectiveHierarchyForDescendants
Description	Registers for notification of an updated objective hierarchy structure. `ObjectiveReceiver.changedChildOfObjectives()` is invoked when the specified node or any of its descendants experiences a change in its children.
Parameters	`osid.id.Id`	`objectiveId`	the `Id` of the `Objective` node to monitor
Errors	NULL_ARGUMENT		`objectiveId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.