OSID - osid.resource.demographic.DemographicBinAssignmentSession Service Interface Definition

Interface	osid.resource.demographic.DemographicBinAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Demographic` to `Bin` mappings. A `Demographic` may appear in multiple `Bin` objects and removing the last reference to a `Demographic` is the equivalent of deleting it. Each `Bin` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Demographic` to another `Bin` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignDemographics
Description	Tests if this user can alter demographic/bin 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	canAssignDemographicsToBin
Description	Tests if this user can alter demographic/bin 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.
Parameters	`osid.id.Id`	`binId`	the `Id` of the `Bin`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`binId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableBinIds
Description	Gets a list of bins including and under the given bin node in which any demographic can be assigned.
Parameters	`osid.id.Id`	`binId`	the `Id` of the `Bin`
Return	`osid.id.IdList`		list of assignable bin `Ids`
Errors	NULL_ARGUMENT		`binId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableBinIdsForDemographic
Description	Gets a list of bins including and under the given bin node in which a specific demographic can be assigned.
Parameters	`osid.id.Id`	`binId`	the `Id` of the `Bin`
Parameters	`osid.id.Id`	`demographicId`	the `Id` of the `Demographic`
Return	`osid.id.IdList`		list of assignable bin `Ids`
Errors	NULL_ARGUMENT		`binId` or `demographicId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignDemographicToBin
Description	Adds an existing `Demographic` to an `Bin.`
Parameters	`osid.id.Id`	`demographicId`	the `Id` of the `Demographic`
Parameters	`osid.id.Id`	`binId`	the `Id` of the `Bin`
Errors	ALREADY_EXISTS		`demographicId` is not assigned to `binId`
	NOT_FOUND		`demographicId` or `binId` not found
	NULL_ARGUMENT		`demographicId` or `binId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignDemographicFromBin
Description	Removes a `Demographic` from a `Bin.`
Parameters	`osid.id.Id`	`demographicId`	the `Id` of the `Demographic`
Parameters	`osid.id.Id`	`binId`	the `Id` of the `Bin`
Errors	NOT_FOUND		`demographicId` or `binId` not found or `demographicId` not assigned to `binId`
	NULL_ARGUMENT		`demographicId` or `binId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.