# Package org.apache.cassandra.hadoop

- Class Summary
  Class | Description
  --- | ---
  AbstractColumnFamilyInputFormat<K,Y> |
  AbstractColumnFamilyOutputFormat<K,Y> | The `ColumnFamilyOutputFormat` acts as a Hadoop-specific OutputFormat that allows reduce tasks to store keys (and corresponding values) as Cassandra rows (and respective columns) in a given ColumnFamily.
  AbstractColumnFamilyRecordWriter<K,Y> | The `ColumnFamilyRecordWriter` maps the output <key, value> pairs to a Cassandra column family.
  BulkOutputFormat |
  BulkOutputFormat.NullOutputCommitter |
  ColumnFamilyInputFormat | Hadoop InputFormat allowing map/reduce against Cassandra rows within one ColumnFamily.
  ColumnFamilyOutputFormat | The `ColumnFamilyOutputFormat` acts as a Hadoop-specific OutputFormat that allows reduce tasks to store keys (and corresponding values) as Cassandra rows (and respective columns) in a given ColumnFamily.
  ColumnFamilyRecordReader |
  ColumnFamilySplit |
  ConfigHelper |
  Progressable |

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