FlowStepGraph flowStepGraph = new FlowStepGraph();
Tap sink = getSinksCollection().iterator().next();
FlowStep<JobConf> step = new MapReduceFlowStep( getName(), sink.toString(), jobConf, sink );
flowStepGraph.addVertex( step );
return flowStepGraph;
}
protected Map<String, Tap> createSources( JobConf jobConf )