org.osid.topology.path

Interface PathGraphSession

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, OsidSession

public interface PathGraphSession
extends OsidSession

This session provides methods to retrieve Path to Graph mappings. A Path may appear in multiple Graph objects. Each graph may have its own authorizations governing who is allowed to look at it.

This lookup session defines several views:

• comparative view: elements may be silently omitted or re-ordered
• plenary view: provides a complete result set or is an error condition

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canLookupPathGraphMappings() Tests if this user can perform lookups of path/graph mappings.
IdList	getGraphIdsByPath(Id pathId) Gets the Graph Ids mapped to a Path.
GraphList	getGraphsByPath(Id pathId) Gets the Graph mapped to a Path.
IdList	getPathIdsByGraph(Id graphId) Gets the list of Path Ids associated with a Graph.
IdList	getPathIdsByGraphs(IdList graphIds) Gets the list of Path Ids corresponding to a list of Graphs.
PathList	getPathsByGraph(Id graphId) Gets the list of Paths associated with a Graph.
PathList	getPathsByGraphs(IdList graphIds) Gets the list of Path corresponding to a list of Graphs.
void	useComparativePathGraphView() The returns from the lookup methods may omit or translate elements based on this session, such as authorization, and not result in an error.
void	usePlenaryPathGraphView() A complete view of the Path and Graph returns is desired.

Methods inherited from interface org.osid.OsidSession

getAuthenticatedAgent, getAuthenticatedAgentId, getClockRate, getDate, getEffectiveAgent, getEffectiveAgentId, getFormatType, getLocale, isAuthenticated, startTransaction, supportsTransactions

Methods inherited from interface org.osid.binding.java.OsidSession

close

Methods inherited from interface java.io.Closeable

close

Method Detail

canLookupPathGraphMappings

boolean canLookupPathGraphMappings()

Tests if this user can perform lookups of path/graph mappings. A return of true does not guarantee successful authorization. A return of false indicates that it is known lookup methods in this session will result in a PERMISSION_DENIED. This is intended as a hint to an application that may opt not to offer lookup operations to unauthorized users.

Returns:

false if looking up mappings is not authorized, true otherwise

Compliance:

mandatory - This method must be implemented.

useComparativePathGraphView

void useComparativePathGraphView()

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.

Compliance:

mandatory - This method is must be implemented.

usePlenaryPathGraphView

void usePlenaryPathGraphView()

A complete view of the Path and Graph 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.

Compliance:

mandatory - This method is must be implemented.

getPathIdsByGraph

IdList getPathIdsByGraph(Id graphId)
                         throws NotFoundException,
                                OperationFailedException,
                                PermissionDeniedException

Gets the list of Path Ids associated with a Graph.

Parameters:

graphId - Id of the Graph

Returns:

list of related path Ids

Throws:

NotFoundException - graphId is not found

NullArgumentException - graphId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getPathsByGraph

PathList getPathsByGraph(Id graphId)
                         throws NotFoundException,
                                OperationFailedException,
                                PermissionDeniedException

Gets the list of Paths associated with a Graph.

Parameters:

graphId - Id of the Graph

Returns:

list of related paths

Throws:

NotFoundException - graphId is not found

NullArgumentException - graphId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getPathIdsByGraphs

IdList getPathIdsByGraphs(IdList graphIds)
                          throws OperationFailedException,
                                 PermissionDeniedException

Gets the list of Path Ids corresponding to a list of Graphs.

Parameters:

graphIds - list of graph Ids

Returns:

list of path Ids

Throws:

NullArgumentException - graphIds is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getPathsByGraphs

PathList getPathsByGraphs(IdList graphIds)
                          throws OperationFailedException,
                                 PermissionDeniedException

Gets the list of Path corresponding to a list of Graphs.

Parameters:

graphIds - list of graph Ids

Returns:

list of paths

Throws:

NullArgumentException - graphIds is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getGraphIdsByPath

IdList getGraphIdsByPath(Id pathId)
                         throws NotFoundException,
                                OperationFailedException,
                                PermissionDeniedException

Gets the Graph Ids mapped to a Path.

Parameters:

pathId - Id of a Path

Returns:

list of graphs

Throws:

NotFoundException - pathId is not found

NullArgumentException - pathId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.

getGraphsByPath

GraphList getGraphsByPath(Id pathId)
                          throws NotFoundException,
                                 OperationFailedException,
                                 PermissionDeniedException

Gets the Graph mapped to a Path.

Parameters:

pathId - Id of a Path

Returns:

list of graphs

Throws:

NotFoundException - pathId is not found

NullArgumentException - pathId is null

OperationFailedException - unable to complete request

PermissionDeniedException - authorization failure

Compliance:

mandatory - This method must be implemented.