graphdb/src/main/java/com/tinkerpop/blueprints/impls/orient/OrientElement.java
public void save(final String iClusterName) {
    final OrientBaseGraph graph = checkIfAttached();
    graph.setCurrentGraphInThreadLocal();

    if (rawElement instanceof ODocument)
      if (iClusterName != null)
        rawElement = ((ODocument) rawElement).save(iClusterName);
      else
        rawElement = ((ODocument) rawElement).save();
  }
public void save(final String iClusterName) {
    final OrientBaseGraph graph = checkIfAttached();
    graph.setCurrentGraphInThreadLocal();

    if (rawElement instanceof ODocument)
      if (iClusterName != null)
        rawElement = ((ODocument) rawElement).save(iClusterName);
      else
        rawElement = ((ODocument) rawElement).save();
  }
(Blueprints Extension) Saves current element to a particular cluster. You don't need to call save() unless you're working
against Temporary Vertices.

@param iClusterName Cluster name or null to use the default "E"