Chain.java 文件源码

public ChainOutputCollector(int index, Serialization<K> keySerialization,
                            Serialization<V> valueSerialization,
                            OutputCollector output, Reporter reporter) {
  this.nextMapperIndex = index + 1;
  this.keySerialization = keySerialization;
  this.valueSerialization = valueSerialization;
  this.output = output;
  this.reporter = reporter;
}