OSID - osid.tracking.IssueFrontOfficeAssignmentSession Service Interface Definition

Interface	osid.tracking.IssueFrontOfficeAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Issues` to `FrontOffice` objects. An `Issue` may appear in multiple `FrontOffice` objects and removing the last reference to an `Issue` is the equivalent of deleting it. Each `FrontOffice` may have its own authorizations governing who is allowed to operate on it. Adding a reference of an `Issue` to another `FrontOffice` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignIssues
Description	Tests if this user can alter issue/front office 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	canAssignIssuesToFrontOffice
Description	Tests if this user can alter issue/front office 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`	`frontOfficeId`	the `Id` of the `FrontOffice`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`frontOfficeId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableFrontOfficeIds
Description	Gets a list of front offices including and under the given front office node in which any issue can be assigned.
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice`
Return	`osid.id.IdList`		list of assignable front office `Ids`
Errors	NULL_ARGUMENT		`frontOfficeId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableFrontOfficeIdsForIssue
Description	Gets a list of front offices including and under the given front office node in which a specific issue can be assigned.
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice`
Parameters	`osid.id.Id`	`issueId`	the `Id` of the `Issue`
Return	`osid.id.IdList`		list of assignable front office `Ids`
Errors	NULL_ARGUMENT		`frontOfficeId` or `issueId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignIssueToFrontOffice
Description	Adds an existing `Issue` to a `FrontOffice.`
Parameters	`osid.id.Id`	`issueId`	the `Id` of the `Issue`
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice`
Errors	ALREADY_EXISTS		`issueId` is already assigned to `frontOfficeId`
	NOT_FOUND		`issueId` or `frontOfficeId` not found
	NULL_ARGUMENT		`issueId` or `frontOfficeId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignIssueFromFrontOffice
Description	Removes an `Issue` from a `FrontOffice.`
Parameters	`osid.id.Id`	`issueId`	the `Id` of the `Issue`
Parameters	`osid.id.Id`	`frontOfficeId`	the `Id` of the `FrontOffice`
Errors	NOT_FOUND		`issueId` or `frontOfficeId` not found or `issueId` not assigned to `frontOfficeId`
	NULL_ARGUMENT		`issueId` or `frontOfficeId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.