OSID - osid.grading.GradebookColumnList Service Interface Definition

Interface	osid.grading.GradebookColumnList
Implements	`osid.OsidList`
Used By	`osid.grading.GradebookColumnGradebookSession`
	`osid.grading.GradebookColumnLookupSession`
	`osid.grading.GradebookColumnQuerySession`
	`osid.grading.GradebookColumnSearchResults`
	`osid.grading.calculation.GradebookColumnCalculation`
Description	Like all `OsidLists`, `GradebookColumnList` provides a means for accessing `GradebookColumn` elements sequentially either one at a time or many at a time. Examples: while (gcl.hasNext()) { GradebookColumn column = gcl.getNextGradebookColumn(); } or while (gcl.hasNext()) { GradebookColumn[] columns = gcl.getNextGradebookColumns(gcl.available()); }
Method	getNextGradebookColumn
Description	Gets the next `GradebookColumn` in this list.
Return	`osid.grading.GradebookColumn`		the next `GradebookColumn` in this list. The `hasNext()` method should be used to test that a next `GradebookColumn` 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	getNextGradebookColumns
Description	Gets the next set of `GradebookColumn` elements in this list which must be less than or equal to the return from `available()`.
Parameters	`cardinal`	`n`	the number of `GradebookColumn` elements requested which must be less than or equal to `available()`
Return	`osid.grading.GradebookColumn[]`		an array of `GradebookColumn` 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.