/// <summary>
/// Prepares the enlisted resource managers for committal.
/// </summary>
/// <returns><c>true</c> if all polled participants voted to commit;
/// <c>false</c> otherwise.</returns>
internal bool Prepare()
{
/*if (TransactionInformation.Status == TransactionStatus.Aborted)
return false;
if (TransactionInformation.Status != TransactionStatus.Active)
throw new TransactionException("Cannot prepare transaction, as it is not active. Trasnaction Status: " + TransactionInformation.Status);
*/
bool booVoteToCommit = true;
PreparingEnlistment lpeEnlistment = null;
IEnlistmentNotification entNotification = null;
for (Int32 i = m_lstNotifications.Count - 1; i >= 0; i--)
{
entNotification = m_lstNotifications[i];
lpeEnlistment = new PreparingEnlistment();
entNotification.Prepare(lpeEnlistment);
if (lpeEnlistment.VoteToCommit.HasValue)
{
booVoteToCommit &= lpeEnlistment.VoteToCommit.Value;
if (lpeEnlistment.DoneProcessing)
m_lstNotifications.RemoveAt(i);
}
else
{
booVoteToCommit = false;
TransactionInformation.Status = TransactionStatus.InDoubt;
}
}
if (TransactionInformation.Status == TransactionStatus.InDoubt)
NotifyInDoubt();
return booVoteToCommit;
}
/// <summary>
/// Used to notify an enlisted resource manager that the transaction is being prepared for commitment.
/// </summary>
/// <param name="p_entPreparingEnlistment">The enlistment class used to communicate with the resource manager.</param>
public void Prepare(PreparingEnlistment p_entPreparingEnlistment)
{
p_entPreparingEnlistment.Prepared();
}
/// <summary>
/// Tells al participanting resource managers to commit their changes.
/// </summary>
internal void Commit()
{
if (TransactionInformation.Status != TransactionStatus.Active)
throw new TransactionException("Cannot commit transaction, as it is not active. Trasnaction Status: " + TransactionInformation.Status);
PreparingEnlistment lpeEnlistment = null;
IEnlistmentNotification entNotification = null;
for (Int32 i = m_lstNotifications.Count - 1; i >= 0; i--)
{
entNotification = m_lstNotifications[i];
lpeEnlistment = new PreparingEnlistment();
entNotification.Commit(lpeEnlistment);
if (lpeEnlistment.DoneProcessing)
m_lstNotifications.RemoveAt(i);
}
if (m_lstNotifications.Count > 0)
{
TransactionInformation.Status = TransactionStatus.InDoubt;
NotifyInDoubt();
}
else
TransactionInformation.Status = TransactionStatus.Committed;
}
