Like all OsidLists, OrderItemList provides a means for accessing OrderItem elements sequentially either one at a time or many at a time. Examples:

while (il.hasNext()) {
     OrderItem order item = il.getNextOrderItem();
}
                

while (il.hasNext()) {
     OrderItem[] order items = il.getNextOrderItems(il.available());
}
                

Like all OsidLists, OrderItemList is stateful and must not be accessed by multiple processing threads.