public IEnumerable <EmrActivity> GetActivities(EmrActivitiesRunner emrRunner)
{
foreach (EmrActivity successFlowActivity in this.GetNormalFlow(emrRunner))
{
if (this.hasError)
{
foreach (EmrActivity failedFlowActivity in this.GetFailedFlow(emrRunner))
{
yield return(failedFlowActivity);
}
yield break;
}
yield return(successFlowActivity);
}
}
/// <summary>
/// A sequence of activities, if an error has occurred
/// </summary>
/// <param name="emrRunner">Reference to the emrRunner</param>
/// <returns>Sequence of bad activities</returns>
protected virtual IEnumerable <EmrActivity> GetFailedFlow(EmrActivitiesRunner emrRunner)
{
yield break;
}
/// <summary> /// A normal sequence of activities, if no errors /// </summary> /// <param name="emrRunner">Reference to the emrRunner</param> /// <returns>Sequence of good activities</returns> protected abstract IEnumerable <EmrActivity> GetNormalFlow(EmrActivitiesRunner emrRunner);
/// <summary>
/// Notify an iterator that the job failed, so it can switch to
/// an alternative activities sequence
/// or terminate the job flow
/// or ignore it =)
/// </summary>
/// <param name="emrRunner">Reference to the emrRunner</param>
public virtual void NotifyJobFailed(EmrActivitiesRunner emrRunner)
{
this.hasError = true;
}