org.odpi.openmetadata.governanceservers.openlineage.services

Class GraphQueryingServices

java.lang.Object

org.odpi.openmetadata.governanceservers.openlineage.services.GraphQueryingServices

public class GraphQueryingServices
extends Object

Constructor Summary

Constructors

Constructor and Description
GraphQueryingServices(MainGraph mainGraph)

Method Summary

Modifier and Type	Method and Description
void	dumpGraph(String graphName) Write an entire graph to disc in the Egeria root folder, in the .GraphMl format.
String	exportGraph(String graphName) Return an entire graph, in GraphSon format.
LineageResponse	lineage(String graphName, Scope scope, View view, String guid) Returns a lineage subgraph.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GraphQueryingServices

public GraphQueryingServices(MainGraph mainGraph)

Method Detail

lineage

public LineageResponse lineage(String graphName,
                               Scope scope,
                               View view,
                               String guid)

Returns a lineage subgraph.

Parameters:

graphName - main, buffer, mock, history.

scope - source-and-destination, end-to-end, ultimate-source, ultimate-destination, glossary.

view - The view queried by the user: hostview, tableview, columnview.

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

Returns:

A subgraph containing all relevant paths, in graphSON format.

dumpGraph

public void dumpGraph(String graphName)

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

Parameters:

graphName - MAIN, BUFFER, MOCK, HISTORY.

exportGraph

public String exportGraph(String graphName)

Return an entire graph, in GraphSon format.

Parameters:

graphName - MAIN, BUFFER, MOCK, HISTORY.

Returns:

The queried graph, in graphSON format.