/// <summary>
/// Raises the <see cref="E:Error"/> event.
/// </summary>
/// <param name="eventArgs">The <see cref="Xtensive.Orm.Reprocessing.ExecuteErrorEventArgs"/> instance containing the event data.</param>
/// <returns>True if needs to reprocess the task.</returns>
protected virtual bool OnError(ExecuteErrorEventArgs eventArgs)
{
if (Error != null)
{
Error(this, eventArgs);
}
return(eventArgs.Attempt < Attempts);
}
/// <summary>
/// Handles the exception.
/// </summary>
/// <param name="eventArgs">The <see cref="Xtensive.Orm.Reprocessing.ExecuteErrorEventArgs"/> instance containing the exception data.</param>
/// <returns>
/// True if needs to reprocess the task, otherwise false.
/// </returns>
protected override bool HandleException(ExecuteErrorEventArgs eventArgs)
{
if (eventArgs.Transaction != null && eventArgs.Transaction.IsNested &&
eventArgs.Transaction.IsolationLevel == IsolationLevel.Snapshot)
{
return(false);
}
if (eventArgs.Exception is UniqueConstraintViolationException)
{
return(OnError(eventArgs));
}
var ex = eventArgs.Exception as StorageException;
if (ex != null)
{
var ex1 = ex.InnerException as SqlException;
if (ex1 != null && ex1.Number == 2601)
{
return(OnError(eventArgs));
}
}
return(base.HandleException(eventArgs));
}
/// <summary> /// Handles the exception. /// </summary> /// <param name="eventArgs">The <see cref="Xtensive.Orm.Reprocessing.ExecuteErrorEventArgs"/> instance containing the exception data.</param> /// <returns>True if needs to reprocess the task, otherwise false.</returns> protected virtual bool HandleException(ExecuteErrorEventArgs eventArgs) => false;
/// <summary>
/// Handles the exception.
/// </summary>
/// <param name="eventArgs">The <see cref="Xtensive.Orm.Reprocessing.ExecuteErrorEventArgs"/> instance containing the exception data.</param>
/// <returns>True if needs to reprocess the task, otherwise false.</returns>
protected virtual bool HandleException(ExecuteErrorEventArgs eventArgs)
{
return(false);
}