Interface AuctionHouseHierarchySession

All Superinterfaces:
AutoCloseable, Closeable, OsidSession, OsidSession

public interface AuctionHouseHierarchySession extends OsidSession

This session defines methods for traversing a hierarchy of AuctionHouses . Each node in the hierarchy is a unique AuctionHouse . The hierarchy may be traversed recursively to establish the tree structure through getParentAuctionHouses() and getChildAuctionHouses() . To relate these Ids to another OSID, getAuctionHouseNodes() can be used for retrievals that can be used for bulk lookups in other OSIDs. Any AuctionHouse available in the Bidding OSID is known to this hierarchy but does not appear in the hierarchy traversal until added as a root item or a child of another item.

A user may not be authorized to traverse the entire hierarchy. Parts of the hierarchy may be made invisible through omission from the returns of getParentAuctionHouses() or getChildAuctionHouses() in lieu of a PERMISSION_DENIED error that may disrupt the traversal through authorized auctionways.

This session defines views that offer differing behaviors when retrieving multiple objects.

  • comparative auction house view: auction house elements may be silently omitted or re-ordered
  • plenary auction house view: provides a complete set or is an error condition