OSID - osid.sequencing.ElementAdminSession Service Interface Definition

Interface	osid.sequencing.ElementAdminSession
Implements	`osid.OsidSession`
Used By	`osid.sequencing.SequencingManager`
Used By	`osid.sequencing.SequencingProxyManager`
Description	This session provides methods to add and remove elements from a chain.
Method	getAntimatroidId
Description	Gets the `Antimatroid` `Id` associated with this session.
Return	`osid.id.Id`		the `Antimatroid Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getAntimatroid
Description	Gets the `Antimatroid` associated with this session.
Return	`osid.sequencing.Antimatroid`		the antimatroid
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canManageElements
Description	Tests if this user can add and remove eleemnts to a chain. A return of true does not guarantee successful authorization. A return of false indicates that it is known performing any update will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may opt not to offer these operations to an unauthorized user.
Return	`boolean`		`false` if managing elements is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	addElement
Description	Adds an element to a chain,
Parameters	`osid.id.Id`	`chainId`	the `Id` of the chain
Parameters	`osid.id.Id`	`id`	the `Id` of the element to add
Errors	ALREADY_EXISTS		`id` already in `chainId`
	NOT_FOUND		`chainId` or `id` not found
	NULL_ARGUMENT		`chainId` or `id` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	addElements
Description	Adds a list of ordered elements to a chain.
Parameters	`osid.id.Id`	`chainId`	the `Id` of the chain
Parameters	`osid.id.IdList`	`ids`	the `Ids` of the elements to add
Errors	ALREADY_EXISTS		an `id` already in `chainId`
	NOT_FOUND		`chainId` or an `id` not found
	NULL_ARGUMENT		`chainIds` or `id` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	removeElement
Description	Removes an element from a chain.
Parameters	`osid.id.Id`	`chainId`	the `Id` of the chain
Parameters	`osid.id.Id`	`id`	the `Id` of the element to remove
Errors	NOT_FOUND		`chainId` or `id` not found, or `id` is not in `chainId`
	NULL_ARGUMENT		`chainId` or `id` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.