OSID - osid.ordering.ItemForm Service Interface Definition

Interface	osid.ordering.ItemForm
Implements	`osid.OsidRelationshipForm`
Implemented By	`osid.ordering.batch.ItemBatchForm`
Used By	`osid.ordering.ItemAdminSession`
Description	This is the form for creating and updating `Items`.Like all `OsidForm` objects, various data elements may be set here for use in the create and update methods in the `ItemAdminSession`. For each data element that may be set, metadata may be examined to provide display hints or data constraints.
Method	getQuantityMetadata
Description	Gets the metadata for a quantity.
Return	`osid.Metadata`		metadata for the quantity
Compliance	`mandatory`		This method must be implemented.
Method	setQuantity
Description	Sets the quantity.
Parameters	`cardinal`	`quantity`	the new quantity
Errors	INVALID_ARGUMENT		`quantity` is invalid
Errors	NO_ACCESS		`Metadata.isReadOnly()` is `true`
Compliance	`mandatory`		This method must be implemented.
Method	clearQuantity
Description	Clears the quantity.
Errors	NO_ACCESS		`Metadata.isRequired()` or `Metadata.isReadOnly()` is `true`
Compliance	`mandatory`		This method must be implemented.
Method	getItemFormRecord
Description	Gets the `ItemFormRecord` corresponding to the given item record `Type`.
Parameters	`osid.type.Type`	`itemRecordType`	the item record type
Return	`osid.ordering.records.ItemFormRecord`		the item form record
Errors	NULL_ARGUMENT		`itemRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(itemRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.