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OSID Specifications
topology package
Version 3.1.0
Interfaceosid.topology.GraphHierarchyDesignSession
Implementsosid.OsidSession
Used Byosid.topology.TopologyManager
osid.topology.TopologyProxyManager
Description

This session defines methods for managing a hierarchy of Graph objects. Each node in the hierarchy is a unique Graph.

MethodgetGraphHierarchyId
Description

Gets the hierarchy Id associated with this session.

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

Gets the hierarchy associated with this session.

Returnosid.hierarchy.Hierarchy the hierarchy associated with this session
ErrorsOPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodcanModifyGraphHierarchy
Description

Tests if this user can change the hierarchy. A return of true does not guarantee successful authorization. A return of false indicates that it is known performing any update will result in a PERMISSION_DENIED. This is intended as a hint to an application that may opt not to offer these operations to an unauthorized user.

Returnboolean false if changing this hierarchy is not authorized, true otherwise
Compliancemandatory This method must be implemented.
MethodaddRootGraph
Description

Adds a root graph.

Parametersosid.id.IdgraphId the Id of a graph
ErrorsALREADY_EXISTS graphId is already in hierarchy
NOT_FOUND graphId not found
NULL_ARGUMENT graphId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodremoveRootGraph
Description

Removes a root graph.

Parametersosid.id.IdgraphId the Id of a graph
ErrorsNOT_FOUND graphId not a root
NULL_ARGUMENT graphId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodaddChildGraph
Description

Adds a child to a graph.

Parametersosid.id.IdgraphId the Id of a graph
osid.id.IdchildId the Id of the new child
ErrorsALREADY_EXISTS graphId is already a parent of childId
NOT_FOUND graphId or childId not found
NULL_ARGUMENT graphId or childId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodremoveChildGraph
Description

Removes a child from a graph.

Parametersosid.id.IdgraphId the Id of a graph
osid.id.IdchildId the Id of the new child
ErrorsNOT_FOUND graphId not a parent of childId
NULL_ARGUMENT graphId or childId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.
MethodremoveChildGraphs
Description

Removes all children from a graph.

Parametersosid.id.IdgraphId the Id of a graph
ErrorsNOT_FOUND graphId not in hierarchy
NULL_ARGUMENT graphId is null
OPERATION_FAILED unable to complete request
PERMISSION_DENIED authorization failure
Compliancemandatory This method must be implemented.