OSID - osid.course.TermHierarchyDesignSession Service Interface Definition

Interface	osid.course.TermHierarchyDesignSession
Implements	`osid.OsidSession`
Description	This session defines methods for managing a hierarchy of `Term` objects. Each node in the hierarchy is a unique `Term.`
Method	getTermHierarchyId
Description	Gets the hierarchy `Id` associated with this session.
Return	`osid.id.Id`		the hierarchy `Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getTermHierarchy
Description	Gets the hierarchy associated with this session.
Return	`osid.hierarchy.Hierarchy`		the hierarchy associated with this session
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canModifyTermHierarchy
Description	Tests if this user can change the hierarchy. 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 changing this hierarchy is not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	addRootTerm
Description	Adds a root term.
Parameters	`osid.id.Id`	`termId`	the `Id` of a term
Errors	ALREADY_EXISTS		`termId` is already in hierarchy
	NOT_FOUND		`termId` not found
	NULL_ARGUMENT		`termId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	removeRootTerm
Description	Removes a root term.
Parameters	`osid.id.Id`	`termId`	the `Id` of a term
Errors	NOT_FOUND		`termId` not a root node
	NULL_ARGUMENT		`termId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	addChildTerm
Description	Adds a child to a term.
Parameters	`osid.id.Id`	`termId`	the `Id` of a term
Parameters	`osid.id.Id`	`childId`	the `Id` of the new child
Errors	ALREADY_EXISTS		`termId` is already a parent of `childId`
	NOT_FOUND		`termId` or `childId` not found
	NULL_ARGUMENT		`termId` or `childId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	removeChildTerm
Description	Removes a child from a term.
Parameters	`osid.id.Id`	`termId`	the `Id` of a term
Parameters	`osid.id.Id`	`childId`	the `Id` of the new child
Errors	NOT_FOUND		`termId` not a parent of `childId`
	NULL_ARGUMENT		`termId` or `childId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	removeChildTerms
Description	Removes all children from a term.
Parameters	`osid.id.Id`	`termId`	the `Id` of a term
Errors	NOT_FOUND		`termId is` not in hierarchy
	NULL_ARGUMENT		`termId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.