Which classes are used by the Hive to Read and Write HDFS Files

Following classes are used by Hive to read and write HDFS files 

1. TextInputFormat/HiveIgnoreKeyTextOutputFormat: These 2 classes read/write data in plain text file format. 
2. SequenceFileInputFormat/SequenceFileOutputFormat: These 2 classes read/write data in hadoop SequenceFile format.