OSID - osid.id.IdList Service Interface Definition

Interface	osid.id.IdList
Implements	`osid.OsidList`
Description	Like all `OsidLists,` `IdList` provides a means for accessing `Id` elements sequentially either one at a time or many at a time. Examples: while (il.hasNext()) { Id id = il.getNextId(); } or while (il.hasNext()) { Id[] ids = il.getNextIds(il.available()); }
Method	getNextId
Description	Gets the next `Id` in this list.
Return	`osid.id.Id`		the next `Id` in this list. The `hasNext()` method should be used to test that a next `Id` 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	getNextIds
Description	Gets the next set of `Ids` in this list. The specified amount must be less than or equal to the return from `available().`
Parameters	`cardinal`	`n`	the number of `Id` elements requested which must be less than or equal to `available()`
Return	`osid.id.Id[]`		an array of `Id` 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.