OSID - osid.control.DeviceQuerySession Service Interface Definition

Interface	osid.control.DeviceQuerySession
Implements	`osid.OsidSession`
Implemented By	`osid.control.DeviceSearchSession`
Used By	`osid.control.ControlManager`
Used By	`osid.control.ControlProxyManager`
Description	This session provides methods for searching among `Devices`. The search query is constructed using the `DeviceQuery`. This session defines views that offer differing behaviors for searching. federated system view: searches include devices in systems of which this system is an ancestor in the system hierarchy isolated system view: searches are restricted to devices in this system Devices may have a query record indicated by their respective record types. The query record is accessed via the `DeviceQuery`.
Method	getSystemId
Description	Gets the `System` `Id` associated with this session.
Return	`osid.id.Id`		the `System Id` associated with this session
Compliance	`mandatory`		This method must be implemented.
Method	getSystem
Description	Gets the `System` associated with this session.
Return	`osid.control.System`		the system
Errors	OPERATION_FAILED		unable to complete request
Errors	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	canSearchDevices
Description	Tests if this user can perform `Device` 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	useFederatedSystemView
Description	Federates the view for methods in this session. A federated view will include devices in systems which are children of this system in the system hierarchy.
Compliance	`mandatory`		This method is must be implemented.
Method	useIsolatedSystemView
Description	Isolates the view for methods in this session. An isolated view restricts searches to this system only.
Compliance	`mandatory`		This method is must be implemented.
Method	getDeviceQuery
Description	Gets a device query.
Return	`osid.control.DeviceQuery`		the device query
Compliance	`mandatory`		This method must be implemented.
Method	getDevicesByQuery
Description	Gets a list of `Devices` matching the given device query,
Parameters	`osid.control.DeviceQuery`	`deviceQuery`	the device query
Return	`osid.control.DeviceList`		the returned `DeviceList`
Errors	NULL_ARGUMENT		`deviceQuery` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
	UNSUPPORTED		`deviceQuery` is not of this service
Compliance	`mandatory`		This method must be implemented.