OSID - osid.personnel.PositionRealmAssignmentSession Service Interface Definition

Interface	osid.personnel.PositionRealmAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Positions` to `Bilings.` A `Position` may map to multiple `Realms` and removing the last reference to a `Position` is the equivalent of deleting it. Each `Realm` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Position` to another `Realm` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignPositions
Description	Tests if this user can alter position/realm 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 lookup operations to unauthorized users.
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	canAssignPositionsToRealm
Description	Tests if this user can alter position/realm 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`	`realmId`	the `Id` of the `Realm`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`realmId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableRealmIds
Description	Gets a list of realms including and under the given realm node in which any position can be assigned.
Parameters	`osid.id.Id`	`realmId`	the `Id` of the `Realm`
Return	`osid.id.IdList`		list of assignable realm `Ids`
Errors	NULL_ARGUMENT		`realmId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableRealmIdsForPosition
Description	Gets a list of realms including and under the given realm node in which a specific position can be assigned.
Parameters	`osid.id.Id`	`realmId`	the `Id` of the `Realm`
Parameters	`osid.id.Id`	`positionId`	the `Id` of the `Position`
Return	`osid.id.IdList`		list of assignable realm `Ids`
Errors	NULL_ARGUMENT		`realmId` or `positionId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignPositionToRealm
Description	Adds an existing `Position` to a `Realm.`
Parameters	`osid.id.Id`	`positionId`	the `Id` of the `Position`
Parameters	`osid.id.Id`	`realmId`	the `Id` of the `Realm`
Errors	ALREADY_EXISTS		`positionId` already assigned to `realmId`
	NOT_FOUND		`positionId` or `realmId` not found
	NULL_ARGUMENT		`positionId` or `realmId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignPositionFromRealm
Description	Removes a `Position` from a `Realm.`
Parameters	`osid.id.Id`	`positionId`	the `Id` of the `Position`
Parameters	`osid.id.Id`	`realmId`	the `Id` of the `Realm`
Errors	NOT_FOUND		`positionId` or `realmId` not found or `positionId` not mapped to `realmId`
	NULL_ARGUMENT		`positionId` or `realmId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.