OSID - osid.calendaring.DurationList Service Interface Definition

Interface	osid.calendaring.DurationList
Implements	`osid.OsidList`
Description	Like all `OsidLists`, `DurationList` provides a means for accessing `Duration` elements sequentially either one at a time or many at a time. Examples: while (dl.hasNext()) { Duration duration = dl.getNextDuration(); } or while dl.hasNext()) { Duration[] durations = dl.getNextDurations(dl.available()); }
Method	getNextDuration
Description	Gets the next `Duration` in this list.
Return	`osid.calendaring.Duration`		the next `Duration` in this list. The `hasNext()` method should be used to test that a next `Duration` is available before calling this method.
Errors	ILLEGAL_STATE		no more elements available in this list
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getNextDurations
Description	Gets the next set of `Duration` elements in this list which must be less than or equal to the number returned from `available()`.
Parameters	`cardinal`	`n`	the number of `Duration` elements requested which should be less than or equal to `available()`
Return	`osid.calendaring.Duration[]`		an array of `Duration` elements. The length of the array is less than or equal to the number specified.
Errors	ILLEGAL_STATE		no more elements available in this list
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.