OSID - osid.assessment.AnswerList Service Interface Definition

Interface	osid.assessment.AnswerList
Implements	`osid.OsidList`
Used By	`osid.assessment.AssessmentSession`
Used By	`osid.assessment.Item`
Description	Like all `OsidLists`, `AnswerList` provides a means for accessing `Answer` elements sequentially either one at a time or many at a time. Examples: while (al.hasNext()) { Answer answer = al.getNextAnswer(); } or while (al.hasNext()) { Answer[] answer = al.getNextAnswers(al.available()); }
Method	getNextAnswer
Description	Gets the next `Answer` in this list.
Return	`osid.assessment.Answer`		the next `Answer` in this list. The `hasNext()` method should be used to test that a next `Answer` 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	getNextAnswers
Description	Gets the next set of `Answer` elements in this list which must be less than or equal to the number returned from `available()`.
Parameters	`cardinal`	`n`	the number of `Answer` elements requested which should be less than or equal to `available()`
Return	`osid.assessment.Answer[]`		an array of `Answer` 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.