OSID - osid.installation.InstallationNotificationSession Service Interface Definition

Interface	osid.installation.InstallationNotificationSession
Implements	`osid.OsidSession`
Description	This session defines methods to receive asynchronous notifications on adds/changes to `Installation` 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	getSiteId
Description	Gets the `Site` `Id` associated with this session.
Return	`osid.id.Id`		the `Site Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getSite
Description	Gets the `Site` associated with this session.
Return	`osid.installation.Site`		the `Site` associated with this session
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canRegisterForInstallationNotifications
Description	Tests if this user can register for `Installation` 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 not offer notification functions to unauthorized users.
Return	`boolean`		`false` if notification methods are not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	registerForNewInstallations
Description	Register for notifications of new installations. `InstallationReceiver.newInstallations()` is invoked when a new installation is installed.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedInstallations
Description	Registers for notification of deleted installations. `InstallationReceiver.deletedInstallations()` is invoked when a installation is removed.
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	registerForDeletedInstallation
Description	Registers for notification of a deleted installation. `InstallationReceiver.deletedInstallations()` is invoked when the specified installation is removed.
Parameters	`osid.id.Id`	`installationId`	the `Id` of the `Installation` to monitor
Errors	NULL_ARGUMENT		`installationId is null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.