OSID - osid.inventory.StockWarehouseAssignmentSession Service Interface Definition

Interface	osid.inventory.StockWarehouseAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Stocks` to `Warehouse` objects A `Stock` may appear in multiple `Warehouse` objects and removing the last reference to a `Stock` 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 `Stock` to another `Warehouse` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignStocks
Description	Tests if this user can alter stock/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	canAssignStockToWarehouse
Description	Tests if this user can alter stock/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 stock 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	getAssignableWarehouseIdsForStock
Description	Gets a list of warehouses including and under the given warehouse node in which a specific stock can be assigned.
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Parameters	`osid.id.Id`	`stockId`	the `Id` of the `Stock`
Return	`osid.id.IdList`		list of assignable warehouse `Ids`
Errors	NULL_ARGUMENT		`warehouseId` or `stockId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignStockToWarehouse
Description	Adds an existing `Stock` to a `Warehouse.`
Parameters	`osid.id.Id`	`stockId`	the `Id` of the `Stock`
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Errors	ALREADY_EXISTS		`stockId` is already assigned to `warehouseId`
	NOT_FOUND		`stockId` or `warehouseId` not found
	NULL_ARGUMENT		`stockId` or `warehouseId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignStockFromWarehouse
Description	Removes a `Stock` from a `Warehouse.`
Parameters	`osid.id.Id`	`stockId`	the `Id` of the `Stock`
Parameters	`osid.id.Id`	`warehouseId`	the `Id` of the `Warehouse`
Errors	NOT_FOUND		`stockId` or `warehouseId` not found or `stockId` not assigned to `warehouseId`
	NULL_ARGUMENT		`stockId` or `warehouseId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.