OSID - osid.metering.UtilityNodeList Service Interface Definition

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