OSID - osid.inventory.ModelWarehouseAssignmentSession Service Interface Definition

Interface	osid.inventory.ModelWarehouseAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Models` to `Warehouse` objects A `Model` may appear in multiple `Warehouse` objects and removing the last reference to a `Model` is the equivalent of deleting it. Each `Warehouse` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Model` to another `Warehouse` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignModels
Description	Tests if this user can alter model/warehouse 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 assignment operations to unauthorized users.
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canAssignModelToWarehouse
Description	Tests if this user can alter model/warehouse 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`	`warehouseId`	the `Id` of the `Warehouse`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`warehouseId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableWarehouseIds
Description	Gets a list of warehouses including and under the given warehouse node in which any model can be assigned.
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Return	`osid.id.IdList`		list of assignable warehouse `Ids`
Errors	NULL_ARGUMENT		`warehouseId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableWarehouseIdsForModel
Description	Gets a list of warehouses including and under the given warehouse node in which a specific model can be assigned.
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Parameters	`osid.id.Id`	`modelId`	the `Id` of the `Model`
Return	`osid.id.IdList`		list of assignable warehouse `Ids`
Errors	NULL_ARGUMENT		`warehouseId` or `modelId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignModelToWarehouse
Description	Adds an existing `Model` to a `Warehouse.`
Parameters	`osid.id.Id`	`modelId`	the `Id` of the `Model`
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Errors	ALREADY_EXISTS		`modelId` is already assigned to `warehouseId`
	NOT_FOUND		`modelId` or `warehouseId` not found
	NULL_ARGUMENT		`modelId` or `warehouseId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignModelFromWarehouse
Description	Removes a `Model` from a `Warehouse.`
Parameters	`osid.id.Id`	`modelId`	the `Id` of the `Model`
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Errors	NOT_FOUND		`modelId` or `warehouseId` not found or `modelId` not assigned to `warehouseId`
	NULL_ARGUMENT		`modelId` or `warehouseId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.