OSID - osid.room.squatting.DeedCampusAssignmentSession Service Interface Definition

Interface	osid.room.squatting.DeedCampusAssignmentSession
Implements	`osid.OsidSession`
Used By	`osid.room.squatting.RoomSquattingManager`
Used By	`osid.room.squatting.RoomSquattingProxyManager`
Description	This session provides methods to re-assign `Deeds` to `Campuses` . A `Deed` may map to multiple `Campuses` and removing the last reference to a `Deed` 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 `Deed` to another `Campus` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignDeeds
Description	Tests if this user can alter deed/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	canAssignDeedsToCampus
Description	Tests if this user can alter deed/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 deed 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	getAssignableCampusIdsForDeed
Description	Gets a list of campuses including and under the given campus node in which a specific deed can be assigned.
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Parameters	`osid.id.Id`	`deedId`	the `Id` of the `Deed`
Return	`osid.id.IdList`		list of assignable campus `Ids`
Errors	NULL_ARGUMENT		`campusId` or `deedId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignDeedToCampus
Description	Adds an existing `Deed` to a `Campus` .
Parameters	`osid.id.Id`	`deedId`	the `Id` of the `Deed`
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Errors	ALREADY_EXISTS		`deedId` is already assigned to `campusId`
	NOT_FOUND		`deedId` or `campusId` not found
	NULL_ARGUMENT		`deedId` or `campusId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignDeedFromCampus
Description	Removes a `Deed` from a `Campus` .
Parameters	`osid.id.Id`	`deedId`	the `Id` of the `Deed`
Parameters	`osid.id.Id`	`campusId`	the `Id` of the `Campus`
Errors	NOT_FOUND		`deedId` or `campusId` not found or `deedId` not assigned to `campusId`
	NULL_ARGUMENT		`deedId` or `campusId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	reassignDeedToCampus
Description	Moves a `Deed` from one `Campus` to another. Mappings to other `Campuses` are unaffected.
Parameters	`osid.id.Id`	`deedId`	the `Id` of the `Deed`
	`osid.id.Id`	`fromCampusId`	the `Id` of the current `Campus`
	`osid.id.Id`	`toCampusId`	the `Id` of the destination `Campus`
Errors	ALREADY_EXISTS		`deedId` already assigned to `toCampusId`
	NOT_FOUND		`deedId, fromCampusId` , or `toCampusId` not found or `deedId` not mapped to `fromCampusId`
	NULL_ARGUMENT		`deedId, fromCampusId` , or `toCampusId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.