/// <summary>
/// Aborts operation execution after error.
/// It is impossible to restart execution after abort.
/// </summary>
public virtual void AbortExecute()
{
var next = this;
while (next._next != null)
{
next.Status = ExecutionStatus.Aborted;
next = next._next;
}
_current = _next;
_next = null;
}
/// <summary>
/// Tries to start operation execution.
/// It is possible to retrying execution several times.
/// Interface implementation is responsible for counting the attempts.
/// </summary>
public virtual void StartExecute()
{
if (_current != this)
{
_next = _current;
_current = this;
}
Status = ExecutionStatus.Started;
}
/// <summary>
/// Completes operation execution.
/// </summary>
public virtual void CompleteExecute()
{
_current = _next;
_next = null;
Status = ExecutionStatus.Completed;
}