| Class | Description | 
|---|---|
| ClusterInfo | Object keeping some testing cluster init info. | 
| ConfigurationDelegatingFactoryBean | Simple factory bean delegating retrieval of
 hadoop  Configurationfrom aStandaloneHadoopCluster. | 
| HadoopClusterDelegatingFactoryBean | Delegates to  HadoopClusterManagerfor handling lifecycle
 ofHadoopCluster. | 
| HadoopClusterFactoryBean | Factory bean building Hadoop mini clusters. | 
| HadoopClusterManager | Manager handling running mini clusters for tests. | 
| StandaloneHadoopCluster | Standalone simple mini cluster having MR
 and Hdfs nodes. |