OSID - osid.ordering.batch.OrderItemPeerList Service Interface Definition

Interface	osid.ordering.batch.OrderItemPeerList
Implements	`osid.OsidList`
Description	Like all `OsidLists`, `OrderItemPeerList` provides a means for accessing `OrderItemPeer` elements sequentially either one at a time or many at a time. Examples: while (ipl.hasNext()) { OrderItemPeer peer = ipl.getNextOrderItemPeer(); } or while (ipl.hasNext()) { OrderItemPeer[] peers = ipl.getNextOrderItemPeers(ipl.available()); } Like all `OsidLists`, `OrderItemPeerList` is stateful and must not be accessed by multiple processing threads.
Method	getNextOrderItemPeer
Description	Gets the next `OrderItemPeer` in this list.
Return	`osid.ordering.batch.OrderItemPeer`		the next `OrderItemPeer` in this list. The `hasNext()` method should be used to test that a next `OrderItemPeer` 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	getNextOrderItemPeers
Description	Gets the next set of `OrderItemPeer` elements in this list. The specified amount must be less than or equal to the return from `available()`.
Parameters	`cardinal`	`n`	the number of `OrderItemPeer` elements requested which must be less than or equal to `available()`
Return	`osid.ordering.batch.OrderItemPeer[]`		an array of `OrderItemPeer` 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.