gistfile1.java

// Index lookup for the node representing the doctor is omitted for brevity
Iterable<Relationship> relationships = doctor.getRelationships( Direction.INCOMING, COMPANION_OF );
for ( Relationship rel : relationships )
{
  Node companionNode = rel.getStartNode();
  if ( companionNode.hasRelationship( Direction.OUTGOING, IS_A ) )
  {
    Relationship singleRelationship = companionNode.getSingleRelationship( IS_A, Direction.OUTGOING );
    Node endNode = singleRelationship.getEndNode();
    if ( endNode.equals( human ) )
    {
      // Found one!
    }
  }
}