How to use

Triplet

in

org.apache.flink.graph

  @Override
  public void join(Tuple4<K, K, VV, EV> tripletWithSrcValSet,
          Vertex<K, VV> vertex, Collector<Triplet<K, VV, EV>> collector) throws Exception {
    collector.collect(new Triplet<>(tripletWithSrcValSet.f0, tripletWithSrcValSet.f1,
        tripletWithSrcValSet.f2, vertex.getValue(), tripletWithSrcValSet.f3));
  }
}

  @Override
  public Tuple3<Long, Long, Double> map(Triplet<Long, Point, Double> triplet)
      throws Exception {
    Vertex<Long, Point> srcVertex = triplet.getSrcVertex();
    Vertex<Long, Point> trgVertex = triplet.getTrgVertex();
    return new Tuple3<>(srcVertex.getId(), trgVertex.getId(),
      srcVertex.getValue().euclideanDistance(trgVertex.getValue()));
  }
});

  @Override
  public void join(Tuple4<K, K, VV, EV> tripletWithSrcValSet,
          Vertex<K, VV> vertex, Collector<Triplet<K, VV, EV>> collector) throws Exception {
    collector.collect(new Triplet<>(tripletWithSrcValSet.f0, tripletWithSrcValSet.f1,
        tripletWithSrcValSet.f2, vertex.getValue(), tripletWithSrcValSet.f3));
  }
}

  @Override
  public void join(Tuple4<K, K, VV, EV> tripletWithSrcValSet,
          Vertex<K, VV> vertex, Collector<Triplet<K, VV, EV>> collector) throws Exception {
    collector.collect(new Triplet<>(tripletWithSrcValSet.f0, tripletWithSrcValSet.f1,
        tripletWithSrcValSet.f2, vertex.getValue(), tripletWithSrcValSet.f3));
  }
}

  @Override
  public void join(Tuple4<K, K, VV, EV> tripletWithSrcValSet,
          Vertex<K, VV> vertex, Collector<Triplet<K, VV, EV>> collector) throws Exception {
    collector.collect(new Triplet<>(tripletWithSrcValSet.f0, tripletWithSrcValSet.f1,
        tripletWithSrcValSet.f2, vertex.getValue(), tripletWithSrcValSet.f3));
  }
}