OSID - osid.ontology.SubjectList Service Interface Definition

Interface	osid.ontology.SubjectList
Implements	`osid.OsidList`
Used By	`osid.ontology.SubjectHierarchySession`
	`osid.ontology.SubjectLookupSession`
	`osid.ontology.SubjectOntologySession`
	`osid.ontology.SubjectQuerySession`
	`osid.ontology.SubjectSearchResults`
	`osid.tracking.IssueTriagingSession`
Description	Like all `OsidLists`, `SubjectList` provides a means for accessing `Subject` elements sequentially either one at a time or many at a time. Examples: while (sl.hasNext()) { Subject subject = sl.getNextSubject(); } or while (sl.hasNext()) { Subject[] subjects = sl.getNextSubjects(sl.available()); }
Method	getNextSubject
Description	Gets the next `Subject` in this list.
Return	`osid.ontology.Subject`		the next `Subject` in this list. The `hasNext()` method should be used to test that a next `Subject` 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	getNextSubjects
Description	Gets the next set of `Subject` elements in this list which must be less than or equal to the number returned from `available()`.
Parameters	`cardinal`	`n`	the number of `Subject` elements requested which should be less than or equal to `available()`
Return	`osid.ontology.Subject[]`		an array of `Subject` 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.