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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This is the stable version. Apart from bugfixes, this version
does not receive any other updates.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
/*
* StepTaskCallback
* Copyright (C) 2015 University of Waikato, Hamilton, New Zealand
*
*/
package weka.knowledgeflow;
/**
* Callback that Steps can use when executing StepTasks via
* EnvironmentManager.submitTask().
*
* @author Mark Hall (mhall{[at]}pentaho{[dot]}com)
*
* @param the result return type (gets encapsulated in an ExecutionResult)
*/
public interface StepTaskCallback {
/**
* Gets called when the {@code StepTask} finishes processing
*
* @param result the {@code ExecutionrRsult} produced by the task
* @throws Exception if a problem occurs
*/
public void taskFinished(ExecutionResult result) throws Exception;
/**
* Gets called if the {@code StepTask} fails for some reason
*
* @param failedTask the {@StepTask} that failed
* @param failedResult the {@ExecutionResult} produced by
* the failed task (might contain information pertaining to the
* failure)
* @throws Exception if a problem occurs
*/
public void
taskFailed(StepTask failedTask, ExecutionResult failedResult)
throws Exception;
}