ShortestPathsVertex.java 文件源码

@Override
public void combine(VLongWritable vertexIndex, DoubleWritable originalMessage, DoubleWritable messageToCombine) {
    double oldValue = messageToCombine.get();
    double newValue = originalMessage.get();
    if (newValue < oldValue) {
        messageToCombine.set(newValue);
    }
}