OSID - osid.grading.GradeGradebookAssignmentSession Service Interface Definition

Interface	osid.grading.GradeGradebookAssignmentSession
Implements	`osid.OsidSession`
Used By	`osid.grading.GradingManager`
Used By	`osid.grading.GradingProxyManager`
Description	This session provides methods to re-assign `Grades` to `Gradebook` mappings. A `Grade` may appear in multiple `Gradebook` catalogs and removing the last reference to a `Grade` is the equivalent of deleting it. Each `Gradebook` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Grade` to another `Gradebook` is not a copy operation (eg: does not change its `Id`).
Method	canAssignGrades
Description	Tests if this user can alter grade/gradebook 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. T` his 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	canAssignGradeToGradebook
Description	Tests if this user can alter grade/gradebook 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. T` his is intended as a hint to an application that may opt not to offer assignment operations to unauthorized users.
Parameters	`osid.id.Id`	`gradebookId`	the `Id` of the `Gradebook`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`gradebookId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableGradebookIds
Description	Gets a list of gradebooks including and under the given gradebook node in which any grade can be assigned.
Parameters	`osid.id.Id`	`gradebookId`	the `Id` of the `Gradebook`
Return	`osid.id.IdList`		list of assignable gradebook `Ids`
Errors	NULL_ARGUMENT		`gradebookId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableGradebookIdsForGrade
Description	Gets a list of gradebooks including and under the given gradebook node in which a specific grade can be assigned.
Parameters	`osid.id.Id`	`gradebookId`	the `Id` of the `Gradebook`
Parameters	`osid.id.Id`	`gradeId`	the `Id` of the `Grade`
Return	`osid.id.IdList`		list of assignable gradebook `Ids`
Errors	NULL_ARGUMENT		`gradebookId` or `gradeId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignGradeToGradebook
Description	Adds an existing `Grade` to a `Gradebook`.
Parameters	`osid.id.Id`	`gradeId`	the `Id` of the `Grade`
Parameters	`osid.id.Id`	`gradebookId`	the `Id` of the `Gradebook`
Errors	ALREADY_EXISTS		`gradeId` is already assigned to `gradebookId`
	NOT_FOUND		`gradeId` or `gradebookId` not found
	NULL_ARGUMENT		`gradeId` or `gradebookId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignGradeFromGradebook
Description	Removes a `Grade` from a `Gradebook`.
Parameters	`osid.id.Id`	`gradeId`	the `Id` of the `Grade`
Parameters	`osid.id.Id`	`gradebookId`	the `Id` of the `Gradebook`
Errors	NOT_FOUND		`gradeId` or `gradebookId` not found or `gradeId` not assigned to `gradebookId`
	NULL_ARGUMENT		`gradeId` or `gradebookId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	reassignGradeToGradebook
Description	Moves a `Grade` from one `Gradebook` to another. Mappings to other `Gradebooks` are unaffected.
Parameters	`osid.id.Id`	`gradeId`	the `Id` of the `Grade`
	`osid.id.Id`	`fromGradebookId`	the `Id` of the current `Gradebook`
	`osid.id.Id`	`toGradebookId`	the `Id` of the destination `Gradebook`
Errors	ALREADY_EXISTS		`gradeId` already assigned to `togradebookId`
	NOT_FOUND		`gradeId, fromGradebookId`, or `toGradebookeId` not found or `gradeId` not mapped to `fromGradebookId`
	NULL_ARGUMENT		`gradeId, fromGradebookId`, or `toGradebookId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.