OSID - osid.room.BuildingCampusAssignmentSession Service Interface Definition

Interface	osid.room.BuildingCampusAssignmentSession
Implements	`osid.OsidSession`
Used By	`osid.room.RoomManager`
Used By	`osid.room.RoomProxyManager`
Description	This session provides methods to re-assign `Buildings` to `Campuses`. A `Building` may map to multiple `Campuses` and removing the last reference to a `Building` is the equivalent of deleting it. Each `Campus` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Building` to another `Campus` is not a copy operation (eg: does not change its `Id`).
Method	canAssignBuildings
Description	Tests if this user can alter building/campus mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known mapping methods in this session will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer assignment operations to unauthorized users.
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canAssignBuildingsToCampus
Description	Tests if this user can alter building/campus mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known mapping methods in this session will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer assignment operations to unauthorized users.
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`campusId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableCampusIds
Description	Gets a list of campuses including and under the given campus node in which any building can be assigned.
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Return	`osid.id.IdList`		list of assignable campus `Ids`
Errors	NULL_ARGUMENT		`campusId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableCampusIdsForBuilding
Description	Gets a list of campuses including and under the given campus node in which a specific building can be assigned.
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Parameters	`osid.id.Id`	`buildingId`	the `Id` of the `Building`
Return	`osid.id.IdList`		list of assignable campus `Ids`
Errors	NULL_ARGUMENT		`campusId` or `buildingId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignBuildingToCampus
Description	Adds an existing `Building` to a `Campus`.
Parameters	`osid.id.Id`	`buildingId`	the `Id` of the `Building`
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Errors	ALREADY_EXISTS		`buildingId` is already assigned to `campusId`
	NOT_FOUND		`buildingId` or `campusId` not found
	NULL_ARGUMENT		`buildingId` or `campusId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignBuildingFromCampus
Description	Removes a `Building` from a `Campus`.
Parameters	`osid.id.Id`	`buildingId`	the `Id` of the `Building`
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Errors	NOT_FOUND		`buildingId` or `campusId` not found or `buildingId` not assigned to `campusId`
	NULL_ARGUMENT		`buildingId` or `campusId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	reassignBuildingToCampus
Description	Moves a `Building` from one `Campus` to another. Mappings to other `Campuses` are unaffected.
Parameters	`osid.id.Id`	`buildingId`	the `Id` of the `Building`
	`osid.id.Id`	`fromCampusId`	the `Id` of the current `Campus`
	`osid.id.Id`	`toCampusId`	the `Id` of the destination `Campus`
Errors	ALREADY_EXISTS		`buildingId`, already assigned to `toCampusId`
	NOT_FOUND		`buildingId, fromCampusId`, or `toCampusId` not found or `buildingId` not mapped to `fromCampusId`
	NULL_ARGUMENT		`buildingId, fromCampusId`, or `toCampusId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.