17.1.1 Loading a Graph

The following describes the steps for loading a graph:
  1. Create a Session and an Analyst.
    cd /opt/oracle/graph/
./bin/opg4j
// starting the shell will create an implicit session and analyst
    import oracle.pgx.api.*;
import oracle.pgx.api.mllib.DeepWalkModel;
import oracle.pgx.api.frames.*;
    # starting the Python shell will create an implicit session and analyst
  2. Load the graph.

    Note:

    Though the DeepWalk algorithm implementation can be applied to directed or undirected graphs, currently only undirected random walks are considered. 
    opg4j> var instance = GraphServer.getInstance("https://localhost:7007", "<username>", "<password>".toCharArray())
opg4j> var session=instance.createSession("mySession")
opg4j> var graph = session.readGraphByName("<graph_name>",GraphSource.PG_PGQL)
    ServerInstance instance = GraphServer.getInstance("https://localhost:7007", "<username>", "<password>".toCharArray());
PgxSession session = instance.createSession("my-session");
PgxGraph graph = session.readGraphByName("<graph_name>",GraphSource.PG_PGQL);
    instance = graph_server.get_instance("https://localhost:7007","<username>","<password>")
session = instance.create_session("my_session")
graph = session.read_graph_by_name("<graph_name>", "pg_pgql")

Parent topic: Using the DeepWalk Algorithm