OSID - osid.provisioning.RequestDistributorAssignmentSession Service Interface Definition

Interface	osid.provisioning.RequestDistributorAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Requests` to `Distributor` mappings. A `Request` may appear in multiple `Distributor` objects and removing the last reference to a `Request` 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 `Request` to another `Distributor` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignRequests
Description	Tests if this user can alter request/distributor mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known provisionable 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 assignment operations to unauthorized users.
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canAssignRequestsToDistributor
Description	Tests if this user can alter request/distributor mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known provisionable 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 assignment 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 request 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	getAssignableDistributorIdsForRequest
Description	Gets a list of distributors including and under the given distributor node in which a specific request can be assigned.
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Parameters	`osid.id.Id`	`requestId`	the `Id` of the `Request`
Return	`osid.id.IdList`		list of assignable distributor `Ids`
Errors	NULL_ARGUMENT		`distributorId` or `requestId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignRequestToDistributor
Description	Adds an existing `Request` to a `Distributor.`
Parameters	`osid.id.Id`	`requestId`	the `Id` of the `Request`
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Errors	ALREADY_EXISTS		`requestId` is already assigned to `distributorId`
	NOT_FOUND		`requestId` or `distributorId` not found
	NULL_ARGUMENT		`requestId` or `distributorId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignRequestFromDistributor
Description	Removes a `Request` from a `Distributor.`
Parameters	`osid.id.Id`	`requestId`	the `Id` of the `Request`
Parameters	`osid.id.Id`	`distributorId`	the `Id` of the `Distributor`
Errors	NOT_FOUND		`requestId` or `distributorId` not found or `requestId` not assigned to `distributorId`
	NULL_ARGUMENT		`requestId` or `distributorId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.