OSID - osid.provisioning.rules.QueueConstrainerDistributorAssignmentSession Service Interface Definition

Interface	osid.provisioning.rules.QueueConstrainerDistributorAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `QueueConstrainer` to `Distributor` mappings. a `QueueConstrainer` may appear in multiple `Distributor` objects and removing the last reference to a `QueueConstrainer` is the equivalent of deleting it. Each `Distributor` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `QueueConstrainer` to another `Distributor` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignQueueConstrainers
Description	Tests if this user can alter queue constrainer/distributor mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known mapping 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 lookup operations to unauthorized users.
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canAssignQueueConstrainersToDistributor
Description	Tests if this user can alter queue constrainer/distributor mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known mapping 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 lookup operations to unauthorized users.
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`distributorId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableDistributorIds
Description	Gets a list of distributors including and under the given distributor node in which any queue constrainer can be assigned.
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Return	`osid.id.IdList`		list of assignable distributor `Ids`
Errors	NULL_ARGUMENT		`distributorId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableDistributorIdsForQueueConstrainer
Description	Gets a list of distributors including and under the given distributor node in which a specific queue constrainer can be assigned.
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Parameters	`osid.id.Id`	`queueConstrainerId`	the `Id` of the `QueueConstrainer`
Return	`osid.id.IdList`		list of assignable distributor `Ids`
Errors	NULL_ARGUMENT		`distributorId` or `queueConstrainerId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignQueueConstrainerToDistributor
Description	Adds an existing `QueueConstrainer` to a `Distributor.`
Parameters	`osid.id.Id`	`queueConstrainerId`	the `Id` of the `QueueConstrainer`
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Errors	ALREADY_EXISTS		`queueConstrainerId` is not assigned to `distributorId`
	NOT_FOUND		`queueConstrainerId` or `distributorId` not found
	NULL_ARGUMENT		`queueConstrainerId` or `distributorId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignQueueConstrainerFromDistributor
Description	Removes a `QueueConstrainer` from a `Distributor.`
Parameters	`osid.id.Id`	`queueConstrainerId`	the `Id` of the `QueueConstrainer`
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Errors	NOT_FOUND		`queueConstrainerId` or `distributorId` not found or `queueConstrainerId` not assigned to `distributorId`
	NULL_ARGUMENT		`queueConstrainerId` or `distributorId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.