OSID - osid.ordering.PriceSchedule Service Interface Definition

Interface	osid.ordering.PriceSchedule
Implements	`osid.OsidObject`
Implements	`osid.Aggregateable`
Used By	`osid.ordering.Cost`
	`osid.ordering.Price`
	`osid.ordering.PriceScheduleAdminSession`
	`osid.ordering.PriceScheduleList`
	`osid.ordering.PriceScheduleLookupSession`
Description	A `PriceSchedule` lists the price catalog. Like all `OsidObjects`, `PriceSchedule` is managed by its `OsidSessions` and may not be accessed by concurrent processing threads.
Method	hasListPrice
Description	Tests if this price schedule has a list price.
Return	`boolean`		`true` if this price schedule has a list price, `false` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	getListPrice
Description	Gets the list price.
Return	`osid.financials.Currency`		the list price
Errors	ILLEGAL_STATE		`hasListPrice()` is `false`
Compliance	`mandatory`		This method must be implemented.
Method	isRecurring
Description	Tests if the list price has a recurring charge.
Return	`boolean`		`true` if the list price is recurring, `false` if one-time
Errors	ILLEGAL_STATE		`hasListPrice()` is `false`
Compliance	`mandatory`		This method must be implemented.
Method	getRecurringInterval
Description	Gets the recurring interval of the list price.
Return	`osid.calendaring.Duration`		the interval
Errors	ILLEGAL_STATE		`isRecurring()` is `false`
Compliance	`mandatory`		This method must be implemented.
Method	getPriceScheduleRecord
Description	Gets the price schedule record corresponding to the given `PriceSchedule` record `Type`. This method is used to retrieve an object implementing the requested record. The `priceScheduleRecordType` may be the `Type` returned in `getRecordTypes()` or any of its parents in a `Type` hierarchy where `hasRecordType(priceScheduletRecordType)` is `true`.
Parameters	`osid.type.Type`	`priceScheduleRecordType`	the type of price schedule record to retrieve
Return	`osid.ordering.records.PriceScheduleRecord`		the price schedule record
Errors	NULL_ARGUMENT		`priceScheduleRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(priceScheduleRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.