OSID - osid.offering.batch.CanonicalUnitBatchForm Service Interface Definition

Interface	osid.offering.batch.CanonicalUnitBatchForm
Implements	`osid.offering.CanonicalUnitForm`
Used By	`osid.offering.batch.CanonicalUnitBatchFormList`
Description	This is the form for creating and updating canonical units in bulk. Like all `OsidForm` objects, various data elements may be set here for use in the create and update methods in the `CanonicalUnitBatchAdminSession` . For each data element that may be set, metadata may be examined to provide display hints or data constraints.
Method	getCanonicalUnitId
Description	Gets the `Id` of the canonical unit to be updated if this is an update transaction.
Return	`osid.id.Id`	the canonical unit `Id`
Errors	ILLEGAL_STATE	`isForUpdate()` is `false`
Compliance	`mandatory`	This method must be implemented.