OSID - osid.ontology.SubjectNodeList Service Interface Definition

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