public class SubjectAreaGraphHandler extends SubjectAreaHandler
The SubjectAreaRESTServicesInstance provides the org.odpi.openmetadata.accessservices.subjectarea.server-side implementation of the SubjectArea Open Metadata Access Service (OMAS). This interface provides glossary authoring interfaces for subject area experts.
Methods inherited from class org.odpi.openmetadata.accessservices.subjectarea.handlers.SubjectAreaHandler
convertOmrsToOmas, findNodes, getAllRelationshipForEntity, getAllRelationshipsForEntity, getMaxPageSize, getNodesFromEntityDetails, getRelationshipsForEntityByType, getRelationshipsFromRelationships, sanitiseFindRequest, sanitiseFindRequest, setNodeEffectivity, setRelationshipEffectivity, setUniqueQualifiedNameIfBlank, validateGlossarySummaryDuringCreation
(OpenMetadataAPIGenericHandler genericHandler, int maxPageSize)Construct the Subject Area Graph Handler needed to operate within a single server instance.
genericHandler- generic handler
maxPageSize- maximum page size
getGraphpublic SubjectAreaOMASAPIResponse<Graph> getGraph
(String userId, String guid, Date asOfTime, String nodeFilterStr, String relationshipFilterStr, StatusFilter statusFilter, Integer level)Get the graph of nodes and relationships radiating out from a node.
Return the nodes and relationships that radiate out from the supplied node (identified by a GUID). The results are scoped by types of relationships, types of nodes and classifications as well as level.
userId- userId under which the request is performed
guid- the starting point of the query.
nodeFilterStr- Comma separated list of node names to include in the query results. Null means include all entities found, irrespective of their type.
relationshipFilterStr- comma separated list of relationship names to include in the query results. Null means include all relationships found, irrespective of their type.
asOfTime- Requests a historical query of the relationships for the entity. Null means return the present values.
statusFilter- By default only active instances are returned. Specify ALL to see all instance in any status.
level- the number of the relationships (relationships) out from the starting node that the query will traverse to gather results. If not specified then it defaults to 3.
- A graph of nodeTypes.
- UnrecognizedGUIDException the supplied guid was not recognised
- UserNotAuthorizedException the requesting user is not authorized to issue this request.
- MetadataServerUncontactableException not able to communicate with a Metadata respository service.
- InvalidParameterException one of the parameters is null or invalid.
- FunctionNotSupportedException Function not supported this indicates that a find was issued but the repository does not implement find functionality in some way.