OSID - osid.offering.CatalogueNode Service Interface Definition

Interface	osid.offering.CatalogueNode
Implements	`osid.OsidNode`
Used By	`osid.offering.CatalogueHierarchySession`
Used By	`osid.offering.CatalogueNodeList`
Description	This interface is a container for a partial hierarchy retrieval. The number of hierarchy levels traversable through this interface depend on the number of levels requested in the `CatalogueHierarchySession`.
Method	getCatalogue
Description	Gets the `Catalogue` at this node.
Return	`osid.offering.Catalogue`	the catalogue represented by this node
Compliance	`mandatory`	This method must be implemented.
Method	getParentCatalogueNodes
Description	Gets the parents of this catalogue.
Return	`osid.offering.CatalogueNodeList`	the parents of this catalogue
Compliance	`mandatory`	This method must be implemented.
Method	getChildCatalogueNodes
Description	Gets the children of this catalogue.
Return	`osid.offering.CatalogueNodeList`	the children of this catalogue
Compliance	`mandatory`	This method must be implemented.