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

Interface	osid.offering.batch.OfferingBatchForm
Implements	`osid.offering.OfferingForm`
Description	This is the form for creating and updating offerings in bulk. Like all `OsidForm` objects, various data elements may be set here for use in the create and update methods in the `OfferingBatchAdminSession.` 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 if this is a create transaction.
Return	`osid.id.Id`	the canonical unit `Id`
Errors	ILLEGAL_STATE	`isForUpdate()` is `true`
Compliance	`mandatory`	This method must be implemented.
Method	getTimePeriodId
Description	Gets the `Id` of the time period if this is a create transaction.
Return	`osid.id.Id`	the time period `Id`
Errors	ILLEGAL_STATE	`isForUpdate()` is `true`
Compliance	`mandatory`	This method must be implemented.
Method	getOfferingId
Description	Gets the `Id` of the offering to be updated if this is an update transaction.
Return	`osid.id.Id`	the offering `Id`
Errors	ILLEGAL_STATE	`isForUpdate()` is `false`
Compliance	`mandatory`	This method must be implemented.