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Interface weka.experiment.ResultListener

public interface ResultListener

extends Serializable

Version:

$Revision: 1.1 $

Author:

Len Trigg (trigg@cs.waikato.ac.nz)

acceptResult(ResultProducer, Object[], Object[])

Accepts results from a ResultProducer.

isResultRequired(ResultProducer, Object[])

Determines whether the results for a specified key must be generated.

postProcess(ResultProducer)

Perform any postprocessing.

preProcess(ResultProducer)

Prepare for the results to be received.

 public abstract void preProcess(ResultProducer rp) throws Exception

Prepare for the results to be received.

Parameters:

rp - the ResultProducer that will generate the results

Throws: Exception

if an error occurs during preprocessing.

 public abstract void postProcess(ResultProducer rp) throws Exception

Perform any postprocessing. When this method is called, it indicates that no more results will be sent that need to be grouped together in any way.

Parameters:

rp - the ResultProducer that generated the results

Throws: Exception

if an error occurs

 public abstract void acceptResult(ResultProducer rp,
                                   Object key[],
                                   Object result[]) throws Exception

Accepts results from a ResultProducer.

Parameters:

rp - the ResultProducer that generated the results

key - an array of Objects (Strings or Doubles) that uniquely identify a result for a given ResultProducer with given compatibilityState

result - the results stored in an array. The objects stored in the array may be Strings, Doubles, or null (for the missing value).

Throws: Exception

if the result could not be accepted.

 public abstract boolean isResultRequired(ResultProducer rp,
                                          Object key[]) throws Exception

Determines whether the results for a specified key must be generated.

Parameters:

rp - the ResultProducer wanting to generate the results

key - an array of Objects (Strings or Doubles) that uniquely identify a result for a given ResultProducer with given compatibilityState

Returns:

true if the result should be generated

Throws: Exception

if it could not be determined if the result is needed.

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