OSID - osid.relationship.FamilyNodeList Service Interface Definition

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