OSID - osid.lexicon.ParameterPressAssignmentSession Service Interface Definition

Interface	osid.lexicon.ParameterPressAssignmentSession
Implements	`osid.OsidSession`
Used By	`osid.lexicon.LexiconManager`
Used By	`osid.lexicon.LexiconProxyManager`
Description	This session provides methods to re-assign `Parameter` to `Press` mappings. A `Parameter` may appear in multiple `Press` objects and removing the last reference to a `Parameter` is the equivalent of deleting it. Each `Press` may have its own authorizations governing who is allowed to operate on it. Adding a reference of a `Parameter` to another `Press` is not a copy operation (eg: does not change its `Id` ).
Method	canAssignParameters
Description	Tests if this user can alter parameter/press 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 press 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	canAssignParametersToPress
Description	Tests if this user can alter parameter/press 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 press that may opt not to offer assignment operations to unauthorized users.
Parameters	`osid.id.Id`	`pressId`	the `Id` of the `Press`
Return	`boolean`		`false` if mapping is not authorized, `true` otherwise
Errors	NULL_ARGUMENT		`pressId` is `null`
Compliance	`mandatory`		This method must be implemented.
Method	getAssignablePressIds
Description	Gets a list of presses including and under the given press node in which any parameter can be assigned.
Parameters	`osid.id.Id`	`pressId`	the `Id` of the `Press`
Return	`osid.id.IdList`		list of assignable press `Ids`
Errors	NULL_ARGUMENT		`pressId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	getAssignablePressIdsForParameter
Description	Gets a list of presses including and under the given press node in which a specific parameter can be assigned.
Parameters	`osid.id.Id`	`pressId`	the `Id` of the `Press`
Parameters	`osid.id.Id`	`parameterId`	the `Id` of the `Parameter`
Return	`osid.id.IdList`		list of assignable press `Ids`
Errors	NULL_ARGUMENT		`pressId` or `parameterId` is `null`
Errors	OPERATION_FAILED		unable to complete request
Compliance	`mandatory`		This method must be implemented.
Method	assignParameterToPress
Description	Adds an existing `Parameter` to a `Press` .
Parameters	`osid.id.Id`	`parameterId`	the `Id` of the `Parameter`
Parameters	`osid.id.Id`	`pressId`	the `Id` of the `Press`
Errors	ALREADY_EXISTS		`parameterId` is already assigned to `pressId`
	NOT_FOUND		`parameterId` or `pressId` not found
	NULL_ARGUMENT		`parameterId` or `pressId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	unassignParameterFromPress
Description	Removes a `Parameter` from a `Press` .
Parameters	`osid.id.Id`	`parameterId`	the `Id` of the `Parameter`
Parameters	`osid.id.Id`	`pressId`	the `Id` of the `Press`
Errors	NOT_FOUND		`parameterId` or `pressId` not found or `parameterId` not assigned to `pressId`
	NULL_ARGUMENT		`parameterId` or `pressId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.
Method	reassignParameterToPress
Description	Moves a `Parameter` from one `Press` to another. Mappings to other `Presses` are unaffected.
Parameters	`osid.id.Id`	`parameterId`	the `Id` of the `Parameter`
	`osid.id.Id`	`fromPressId`	the `Id` of the current `Press`
	`osid.id.Id`	`toPressId`	the `Id` of the destination `Press`
Errors	NOT_FOUND		`parameterId, fromPressId` , or `toPressId` not found or `parameterId` not mapped to `fromPressId`
	NULL_ARGUMENT		`parameterId, fromPressId` , or `toPressId` is `null`
	OPERATION_FAILED		unable to complete request
	PERMISSION_DENIED		authorization failure
Compliance	`mandatory`		This method must be implemented.