# Package cascading.flow.hadoop

- Class Summary
  Class | Description
  --- | ---
  BaseMapReduceFlow |
  ConfigurationSetter |
  FailOnMissingSuccessFlowListener | Class FailOnMissingSuccessFlowListener is a `FlowListener` that tests that all sources to a `Flow` have a `_SUCCESS` file before allowing the Flow to execute.
  FlowMapper | Class FlowMapper is the Hadoop Mapper implementation.
  FlowReducer | Class FlowReducer is the Hadoop Reducer implementation.
  HadoopCoGroupClosure | Class CoGroupClosure is used internally to represent co-grouping results of multiple tuple streams.
  HadoopFlow | Class HadoopFlow is the Apache Hadoop specific implementation of a `Flow`.
  HadoopFlowProcess | Class HadoopFlowProcess is an implementation of `FlowProcess` for Hadoop.
  HadoopFlowStep |
  HadoopGroupByClosure | Class GroupClosure is used internally to represent groups of tuples during grouping.
  MapReduceFlow | Class MapReduceFlow is a `HadoopFlow` subclass that supports custom MapReduce jobs pre-configured via the `JobConf` object.
  MapReduceFlowStep | Class MapReduceFlowStep wraps a `JobConf` and allows it to be executed as a `Flow`.
  MultiMapReduceFlow | Class MultiMapReduceFlow is a `HadoopFlow` subclass that supports custom MapReduce jobs pre-configured via one or more `JobConf` objects.

- Enum Summary
  Enum | Description
  --- | ---
  HadoopCoGroupClosure.Spill |

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