| Interface | Description | 
|---|---|
| ClassifierProducer | 
 Interface to something that produces a trained classifier 
 | 
| ClustererProducer | 
 Interface to something that produces a trained clusterer 
 | 
| FailureListener | 
 Interface to something that is interested in receiving FailureEvents 
 | 
| ImageProducer | 
 Interface to something that can produce an image as output 
 | 
| InstancesProducer | 
 Interface to something that can produce a set of instances 
 | 
| SuccessListener | 
 Interface to something that is interested in receiving SuccessEvents 
 | 
| TextProducer | 
 Interface to something that can produce some sort of textual result/output 
 | 
| Class | Description | 
|---|---|
| FailureEvent | 
 Failure event for Hadoop KF steps 
 | 
| SuccessEvent | 
 Success event for Hadoop KF steps 
 | 
| Annotation Type | Description | 
|---|---|
| KFIgnore | 
 Marker annotation. 
 |