private boolean shouldUseShortNames() {
   final NodeEntity graphEntity = getAnnotation(NodeEntity.class);
   if (graphEntity != null) return graphEntity.useShortNames();
   final RelationshipEntity graphRelationship = getAnnotation(RelationshipEntity.class);
   if (graphRelationship != null) return graphRelationship.useShortNames();
   return false;
 }
 @Override
 public String getRelationshipType() {
   if (!isRelationshipEntity()) return null;
   final RelationshipEntity annotation = getAnnotation(RelationshipEntity.class);
   return annotation.type().isEmpty() ? null : annotation.type();
 }