OSID - osid.assessment.ItemBankAssignmentSession Service Interface Definition

Interface	osid.assessment.ItemBankAssignmentSession
Implements	`osid.OsidSession`
Used By	`osid.assessment.AssessmentManager`
Used By	`osid.assessment.AssessmentProxyManager`
Description	This session provides methods to re-assign `Items` to `Banks`. An `Item` may map to multiple `Banks` and removing the last reference to an `Item` is the equivalent of deleting it. Each `Bank` may have its own authorizations governing who is allowed to operate on it. Moving or adding a reference of an `Item` to another `Bank` is not a copy operation (eg: does not change its `Id`).
Method	canAssignItems
Description	Tests if this user can alter item/bank mappings. A return of true does not guarantee successful assessment. 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	canAssignItemsToBank
Description	Tests if this user can alter item/bank 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`	`bankId`	the `Id` of the `Bank`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`bankId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableBankIds
Description	Gets a list of banks including and under the given bank node in which any item can be assigned.
Parameters	`osid.id.Id`	`bankId`	the `Id` of the `Bank`
Return	`osid.id.IdList`		list of assignable bank `Ids`
Errors	NULL_ARGUMENT		`bankId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableBankIdsForItem
Description	Gets a list of banks including and under the given bank node in which a specific item can be assigned.
Parameters	`osid.id.Id`	`bankId`	the `Id` of the `Bank`
Parameters	`osid.id.Id`	`itemId`	the `Id` of the `Item`
Return	`osid.id.IdList`		list of assignable bank `Ids`
Errors	NULL_ARGUMENT		`bankId` or `itemId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignItemToBank
Description	Adds an existing `Item` to a `Bank`.
Parameters	`osid.id.Id`	`itemId`	the `Id` of the `Item`
Parameters	`osid.id.Id`	`bankId`	the `Id` of the `Bank`
Errors	ALREADY_EXISTS		`itemId` is already assigned to `bankId`
	NOT_FOUND		`itemId` or `bankId` not found
	NULL_ARGUMENT		`itemId` or `bankId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure occurred
Compliance	`mandatory`		This method must be implemented.
Method	unassignItemFromBank
Description	Removes an `Item` from a `Bank`.
Parameters	`osid.id.Id`	`itemId`	the `Id` of the `Item`
Parameters	`osid.id.Id`	`bankId`	the `Id` of the `Bank`
Errors	NOT_FOUND		`itemId` or `bankId` not found or `itemId` not assigned to `bankId`
	NULL_ARGUMENT		`itemId` or `bankId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure occurred
Compliance	`mandatory`		This method must be implemented.
Method	reassignItemToBank
Description	Moves an `Item` from one `Bank` to another. Mappings to other `Banks` are unaffected.
Parameters	`osid.id.Id`	`itemId`	the `Id` of the `Item`
	`osid.id.Id`	`fromBankId`	the `Id` of the current `Bank`
	`osid.id.Id`	`toBankId`	the `Id` of the destination `Bank`
Errors	ALREADY_EXISTS		`itemId` already assigned to `toBankId`
	NOT_FOUND		`itemId, fromBankId`, or `toBankId` not found or `itemId` not mapped to `fromBankId`
	NULL_ARGUMENT		`itemId, fromBankId`, or `toBankId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.