org.odpi.openmetadata.governanceservers.openlineage.maingraph

Interface MainGraph

All Superinterfaces:

OpenLineageGraph

All Known Implementing Classes:

MainGraphConnectorBase

public interface MainGraph
extends OpenLineageGraph

Method Summary

Modifier and Type	Method and Description
void	dumpMainGraph() Write an entire graph to disc in the Egeria root folder, in the .GraphMl format.
String	exportMainGraph() Write the maingraph to JSON (GraphSON) format.
Object	getMainGraph() Allows the BufferGraphConnector to obtain an instance of mainGraph.
void	initializeGraphDB() Initialize the mainGraph database.
LineageResponse	lineage(Scope scope, View view, String guid, String displayNameMustContain, boolean includeProcesses) Returns a lineage subgraph.

Methods inherited from interface org.odpi.openmetadata.governanceservers.openlineage.OpenLineageGraph

start

Method Detail

lineage

LineageResponse lineage(Scope scope,
                        View view,
                        String guid,
                        String displayNameMustContain,
                        boolean includeProcesses)
                 throws OpenLineageException

Returns a lineage subgraph.

Parameters:

scope - The specific lineage query.

view - The view queried by the user.

guid - The guid of the node of which the lineage is queried from.

displayNameMustContain - Used to filter out nodes which displayname does not contain this value.

includeProcesses - Will filter out all processes and subprocesses from the response if false.

Returns:

A subgraph containing all relevant paths, in graphSON format.

Throws:

OpenLineageException

dumpMainGraph

void dumpMainGraph()
            throws OpenLineageException

Write an entire graph to disc in the Egeria root folder, in the .GraphMl format.

Throws:

OpenLineageException

initializeGraphDB

void initializeGraphDB()
                throws OpenLineageException

Initialize the mainGraph database.

Throws:

OpenLineageException

exportMainGraph

String exportMainGraph()
                throws OpenLineageException

Write the maingraph to JSON (GraphSON) format.

Returns:

The queried graph, in graphSON format.

Throws:

OpenLineageException

getMainGraph

Object getMainGraph()

Allows the BufferGraphConnector to obtain an instance of mainGraph. Is of type Object so that OpenLineageServerOperationalServices will not require a dependency on Janusgraph.

Returns:

main graph object