Package weka.knowledgeflow

Interface StepTaskCallback<T>

Type Parameters:
T - the result return type (gets encapsulated in an ExecutionResult)
public interface StepTaskCallback<T>
Callback that Steps can use when executing StepTasks via EnvironmentManager.submitTask().
Author:
Mark Hall (mhall{[at]}pentaho{[dot]}com)

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    taskFailed(StepTask<T> failedTask, ExecutionResult<T> failedResult)
    Gets called if the StepTask fails for some reason
    void
    taskFinished(ExecutionResult<T> result)
    Gets called when the StepTask finishes processing

  • Method Details

    • taskFinished

      void taskFinished(ExecutionResult<T> result) throws Exception
      Gets called when the StepTask finishes processing
      Parameters:
      result - the ExecutionrRsult produced by the task
      Throws:
      Exception - if a problem occurs

    • taskFailed

      void taskFailed(StepTask<T> failedTask, ExecutionResult<T> failedResult) throws Exception
      Gets called if the StepTask fails for some reason
      Parameters:
      failedTask - the that failed
      failedResult - the produced by the failed task (might contain information pertaining to the failure)
      Throws:
      Exception - if a problem occurs