graphdb/src/main/java/com/orientechnologies/orient/graph/batch/OGraphBatchInsertBasic.java
public void createEdge(final Long from, final Long to) {
    if (from < 0) {
      throw new IllegalArgumentException(" Invalid vertex id: " + from);
    }
    if (to < 0) {
      throw new IllegalArgumentException(" Invalid vertex id: " + to);
    }
    last = last < from ? from : last;
    last = last < to ? to : last;
    putInList(from, out, to);
    putInList(to, in, from);
  }
public void createEdge(final Long from, final Long to) {
    if (from < 0) {
      throw new IllegalArgumentException(" Invalid vertex id: " + from);
    }
    if (to < 0) {
      throw new IllegalArgumentException(" Invalid vertex id: " + to);
    }
    last = last < from ? from : last;
    last = last < to ? to : last;
    putInList(from, out, to);
    putInList(to, in, from);
  }
public void createEdge ( final Long from , final Long to ) { if ( from < 0 ) { throw new IllegalArgumentException ( " Invalid vertex id: " + from ) ; } if ( to < 0 ) { throw new IllegalArgumentException ( " Invalid vertex id: " + to ) ; } last = last < from ? from : last ; last = last < to ? to : last ; putInList ( from , out , to ) ; putInList ( to , in , from ) ; }
Creates a new edge between two vertices. If vertices do not exist, they will be created

@param from
id of the vertex that is starting point of the edge
@param to
id of the vertex that is end point of the edge
Creates a new edge between two vertices . If vertices do not exist they will be created