graphdb/src/main/java/com/tinkerpop/blueprints/impls/orient/OrientElement.java
public OrientBaseGraph getGraph() {
    if (classicDetachMode)
      return graph;

    OrientBaseGraph result = OrientBaseGraph.getActiveGraph();
    if (result == null && this.graph != null && !graph.isClosed()) {
      result = graph;
    }
    return result;
  }
public OrientBaseGraph getGraph() {
    if (classicDetachMode)
      return graph;

    OrientBaseGraph result = OrientBaseGraph.getActiveGraph();
    if (result == null && this.graph != null && !graph.isClosed()) {
      result = graph;
    }
    return result;
  }
(Blueprints Extension) Returns the Graph instance associated to the current element. On @detach ed elements returns NULL.