OSID - osid.course.ActivityUnitQuerySession Service Interface Definition

Interface	osid.course.ActivityUnitQuerySession
Implements	`osid.OsidSession`
Implemented By	`osid.course.ActivityUnitSearchSession`
Used By	`osid.course.CourseManager`
Used By	`osid.course.CourseProxyManager`
Description	This session provides methods for searching among `ActivityUnits`. The search query is constructed using the `ActivityUnitQuery`. This session defines views that offer differing behaviors for searching. federated course catalog view: searches include activity units in course catalogs of which this course catalog is an ancestor in the course catalog hierarchy isolated course catalog view: searches are restricted to activity units in this course catalog Activity units may have a query record indicated by their respective record types. The query record is accessed via the `ActivityUnitQuery`.
Method	getCourseCatalogId
Description	Gets the `CourseCatalog` `Id` associated with this session.
Return	`osid.id.Id`		the `CourseCatalog Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getCourseCatalog
Description	Gets the `CourseCatalog` associated with this session.
Return	`osid.course.CourseCatalog`		the course catalog
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canSearchActivityUnits
Description	Tests if this user can perform `ActivityUnit` lookups. A return of true does not guarantee successful authorization. A return of false indicates that it is known all methods in this session will result in a `PERMISSION_DENIED`. This is intended as a hint to an application that may not offer lookup operations to unauthorized users.
Return	`boolean`		`false` if search methods are not authorized, `true` otherwise
Compliance	`mandatory`		This method must be implemented.
Method	useFederatedCourseCatalogView
Description	Federates the view for methods in this session. A federated view will include activity units in course catalog which are children of this course catalog in the course catalog hierarchy.
Compliance	`mandatory`		This method is must be implemented.
Method	useIsolatedCourseCatalogView
Description	Isolates the view for methods in this session. An isolated view restricts lookups to this course catalog only.
Compliance	`mandatory`		This method is must be implemented.
Method	getActivityUnitQuery
Description	Gets an activity unit query.
Return	`osid.course.ActivityUnitQuery`		the activity unit query
Compliance	`mandatory`		This method must be implemented.
Method	getActivityUnitsByQuery
Description	Gets a list of `ActivityUnits` matching the given activity unit query.
Parameters	`osid.course.ActivityUnitQuery`	`activityUnitQuery`	the activity unit query
Return	`osid.course.ActivityUnitList`		the returned `ActivityUnitList`
Errors	NULL_ARGUMENT		`activityUnitQuery` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`activityUnitQuery` is not of this service
Compliance	`mandatory`		This method must be implemented.