程序包org.apache.hadoop.mapreduce.lib.map的分层结构

程序包分层结构:

• 所有程序包

类分层结构

• java.lang.Object
  • org.apache.hadoop.mapreduce.Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>
    • org.apache.hadoop.mapreduce.lib.map.InverseMapper<K,V>
    • org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper<K1,V1,K2,V2>
    • org.apache.hadoop.mapreduce.lib.map.TokenCounterMapper