OSID - osid.grading.GradeSystemList Service Interface Definition

Interface	osid.grading.GradeSystemList
Implements	`osid.OsidList`
Used By	`osid.course.Course`
	`osid.course.CourseOffering`
	`osid.course.registration.RegistrationTarget`
	`osid.grading.GradeSystemGradebookSession`
	`osid.grading.GradeSystemLookupSession`
	`osid.grading.GradeSystemQuerySession`
	`osid.grading.GradeSystemSearchResults`
	`osid.offering.CanonicalUnit`
	`osid.offering.Offering`
	`osid.offering.Participant`
Description	Like all `OsidLists`, `GradeSystemList` provides a means for accessing `GradeSystem` elements sequentially either one at a time or many at a time. Examples: while (gsl.hasNext()) { GradeSystem system = gsl.getNextGradeSystem(); } or while (gsl.hasNext()) { GradeSystem[] systems = gsl.getNextGradeSystems(gsl.available()); }
Method	getNextGradeSystem
Description	Gets the next `GradeSystem` in this list.
Return	`osid.grading.GradeSystem`		the next `GradeSystem` in this list. The `hasNext()` method should be used to test that a next `GradeSystem` 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	getNextGradeSystems
Description	Gets the next set of `GradeSystem` elements in this list which must be less than or equal to the return from `available()`.
Parameters	`cardinal`	`n`	the number of `GradeSystem` elements requested which must be less than or equal to `available()`
Return	`osid.grading.GradeSystem[]`		an array of `GradeSystem` 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.