OSID - osid.inventory.Inventory Service Interface Definition

Interface	osid.inventory.Inventory
Implements	`osid.OsidObject`
Implements	`osid.Subjugateable`
Used By	`osid.inventory.InventoryAdminSession`
	`osid.inventory.InventoryList`
	`osid.inventory.InventoryLookupSession`
Description	An `Inventory` is count of the stock at a point in time.
Method	getStockId
Description	Gets the `Id` of the `Stock`.
Return	`osid.id.Id`		the stock `Id`
Compliance	`mandatory`		This method must be implemented.
Method	getStock
Description	Gets the `Id` of the `Stock`.
Return	`osid.inventory.Stock`		the stock
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getDate
Description	Gets the inventory date.
Return	`osid.calendaring.DateTime`		the inventory date
Compliance	`mandatory`		This method must be implemented.
Method	getQuantity
Description	Gets the quantity of the items in the stock.
Return	`decimal`		the quantity
Compliance	`mandatory`		This method must be implemented.
Method	getInventoryRecord
Description	Gets the inventory record corresponding to the given `Inventory` record `Type`. This method is used to retrieve an object implementing the requested record. The `inventoryRecordType` may be the `Type` returned in `getRecordTypes()` or any of its parents in a `Type` hierarchy where `hasRecordType(inventoryRecordType)` is `true`.
Parameters	`osid.type.Type`	`inventoryRecordType`	the type of inventory record to retrieve
Return	`osid.inventory.records.InventoryRecord`		the inventory record
Errors	NULL_ARGUMENT		`inventoryRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(inventoryRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.