OSID - osid.ontology.RelevancyOntologyAssignmentSession Service Interface Definition

Interface	osid.ontology.RelevancyOntologyAssignmentSession
Implements	`osid.OsidSession`
Description	This session provides methods to re-assign `Relevancies` to `Ontologies.` A `Relevancy` may map to multiple `Ontologies` and removing the last reference to a `Relevancy` is the equivalent of deleting it. Each `Ontology` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Relevancy` to another `Ontology` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignRelevancies
Description	Tests if this user can alter relevancy/ontology 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	canAssignRelevanciesToOntology
Description	Tests if this user can alter relevancy/ontology 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`	`ontologyId`	the `Id` of the `Ontology`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`ontologyId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableOntologyIds
Description	Gets a list of ontologies including and under the given ontology node in which any relevancy can be assigned.
Parameters	`osid.id.Id`	`ontologyId`	the `Id` of the `Ontology`
Return	`osid.id.IdList`		list of assignable ontology `Ids`
Errors	NULL_ARGUMENT		`ontologyId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignableOntologyIdsForRelevancy
Description	Gets a list of ontologies including and under the given ontology node in which a specific relevancy can be assigned.
Parameters	`osid.id.Id`	`ontologyId`	the `Id` of the `Ontology`
Parameters	`osid.id.Id`	`relevancyId`	the `Id` of the `Relevancy`
Return	`osid.id.IdList`		list of assignable ontology `Ids`
Errors	NULL_ARGUMENT		`ontologyId` or `relevancyId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignRelevancyToOntology
Description	Adds an existing `Relevancy` to an `Ontology.`
Parameters	`osid.id.Id`	`relevancyId`	the `Id` of the `Relevancy`
Parameters	`osid.id.Id`	`ontologyId`	the `Id` of the `Ontology`
Errors	ALREADY_EXISTS		`relevancyId` is already assigned to `ontologyId`
	NOT_FOUND		`relevancyId` or `ontologyId` not found
	NULL_ARGUMENT		`relevancyId` or `ontologyId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignRelevancyFromOntology
Description	Removes a `Relevancy` from an `Ontology.`
Parameters	`osid.id.Id`	`relevancyId`	the `Id` of the `Relevancy`
Parameters	`osid.id.Id`	`ontologyId`	the `Id` of the `Ontology`
Errors	NOT_FOUND		`relevancyId` or `ontologyId` not found or `relevancyId` not assigned to `ontologyId`
	NULL_ARGUMENT		`relevancyId` or `ontologyId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	reassignRelevancyToOntology
Description	Moves a `Relevancy` from one `Ontology` to another. Mappings to other `Ontologies` are unaffected.
Parameters	`osid.id.Id`	`relevancyId`	the `Id` of the `Relevancy`
	`osid.id.Id`	`fromOntologyId`	the `Id` of the current `Ontology`
	`osid.id.Id`	`toOntologyId`	the `Id` of the destination `Ontology`
Errors	NOT_FOUND		`relevancyId, fromOntologyId,` or `toOntologyId` not found or `relevancyId` not mapped to `fromOntologyId`
	NULL_ARGUMENT		`relevancyId, fromOntologyId,` or `toOntologyId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.