OSID - osid.learning.ObjectiveNodeList Service Interface Definition

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