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OSID Specifications
lexicon package
Version 3.1.0
Interfaceosid.lexicon.ParameterLookupSession
Implementsosid.OsidSession
Used Byosid.lexicon.LexiconManager
osid.lexicon.LexiconProxyManager
Description

This session provides methods for retrieving Parameters. The Parameter represents a set of idioms.

This session defines views that offer differing behaviors when retrieving multiple objects.

  • comparative view: elements may be silently omitted or re-ordered
  • plenary view: provides a complete set or is an error condition
  • isolated press view: All parameter methods in this session operate, retrieve and pertain to parameters defined explicitly in the current press. Using an isolated view is useful for managing Parameters with the ParameterAdminSession.
  • federated press view: All parameter methods in this session operate, retrieve and pertain to all parameters defined in this press and any other parameters implicitly available in this press through press inheritence.

Generally, the comparative view should be used for most presses as it permits operation even if there is data that cannot be accessed. The methods useFederatedPressView() and useIsolatedPressView() behave as a radio group and one should be selected before invoking the methods in this session.

MethodgetPressId
Description

Gets the Press Id associated with this session.

Returnosid.id.Id the Press Id associated with this session
Compliancemandatory This method must be implemented.
MethodgetPress
Description

Gets the Press associated with this session.

Returnosid.lexicon.Press the press
ErrorsOPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodcanLookupParameters
Description

Tests if this user can perform Parameter 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 press that may opt not to offer lookup operations to unauthorized users.

Returnboolean false if lookup methods are not authorized, true otherwise
Compliancemandatory This method must be implemented.
MethoduseComparativeParameterView
Description

The returns from the lookup methods may omit or translate elements based on this session, such as authorization, and not result in an error. This view is used when greater interoperability is desired at the expense of precision.

Compliancemandatory This method is must be implemented.
MethodusePlenaryParameterView
Description

A complete view of the ParameterConstrainer returns is desired. Methods will return what is requested or result in an error. This view is used when greater precision is desired at the expense of interoperability.

Compliancemandatory This method is must be implemented.
MethoduseFederatedPressView
Description

Federates the view for methods in this session. A federated view will include parameter constrainers in presses which are children of this press in the press hierarchy.

Compliancemandatory This method is must be implemented.
MethoduseIsolatedPressView
Description

Isolates the view for methods in this session. An isolated view restricts lookups to this press only.

Compliancemandatory This method is must be implemented.
MethodgetParameter
Description

Gets the Parameter specified by its Id.

In plenary mode, the exact Id is found or a NOT_FOUND results. Otherwise, the returned Parameter may have a different Id than requested, such as the case where a duplicate Id was assigned to a Parameter and retained for compatibility.

Parametersosid.id.IdparameterId Id of the Parameter
Returnosid.lexicon.Parameter the parameter
ErrorsNOT_FOUND parameterId not found
NULL_ARGUMENT parameterId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method is must be implemented.
MethodgetParametersByIds
Description

Gets a ParameterList corresponding to the given IdList.

In plenary mode, the returned list contains all of the parameters specified in the Id list, in the order of the list, including duplicates, or an error results if an Id in the supplied list is not found or inaccessible. Otherwise, inaccessible Parameters may be omitted from the list and may present the elements in any order including returning a unique set.

Parametersosid.id.IdListparameterIds the list of Ids to retrieve
Returnosid.lexicon.ParameterList the returned Parameter list
ErrorsNOT_FOUND an Id was not found
NULL_ARGUMENT parameterIds is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodgetParametersByGenusType
Description

Gets a ParameterList corresponding to the given parameter genus Type which does not include parameters of genus types derived from the specified Type.

In plenary mode, the returned list contains all known parameters or an error results. Otherwise, the returned list may contain only those parameters that are accessible through this session.

Parametersosid.type.TypeparameterGenusType a parameter genus type
Returnosid.lexicon.ParameterList the returned Parameter list
ErrorsNULL_ARGUMENT parameterGenusType is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodgetParametersByParentGenusType
Description

Gets a ParameterList corresponding to the given parameter genus Type and include any additional parameters with genus types derived from the specified Type.

In plenary mode, the returned list contains all known parameters or an error results. Otherwise, the returned list may contain only those parameters that are accessible through this session.

Parametersosid.type.TypeparameterGenusType a parameter genus type
Returnosid.lexicon.ParameterList the returned Parameter list
ErrorsNULL_ARGUMENT parameterGenusType is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodgetParametersByRecordType
Description

Gets a ParameterList containing the given parameter record Type.

In plenary mode, the returned list contains all known parameters or an error results. Otherwise, the returned list may contain only those parameters that are accessible through this session.

Parametersosid.type.TypeparameterRecordType a parameter record type
Returnosid.lexicon.ParameterList the returned Parameter list
ErrorsNULL_ARGUMENT parameterRecordType is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodgetParametersForText
Description

Gets a ParameterList containing the given text.

In plenary mode, the returned list contains all known parameters or an error results. Otherwise, the returned list may contain only those parameters that are accessible through this session.

Parametersosid.id.IdtextId a text Id
Returnosid.lexicon.ParameterList the returned Parameter list
ErrorsNULL_ARGUMENT textId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodgetParameters
Description

Gets all Parameters.

In plenary mode, the returned list contains all known parameters or an error results. Otherwise, the returned list may contain only those parameters that are accessible through this session.

Returnosid.lexicon.ParameterList a list of Parameters
ErrorsOPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.