public void EstablishTransaction(ITransactionHandler transactionHandler, IDbTransactionObserver observer)
{
//first check the connection state. If it not open then dispose of it
if (transactionHandler.Connection != null)
{
if (transactionHandler.Connection.State != ConnectionState.Open)
{
transactionHandler.Connection.Dispose();
transactionHandler.Connection = null;
}
}
//second open a connection if no connection is already set
if (transactionHandler.Connection == null)
{
transactionHandler.Connection = OpenConnection(transactionHandler.ConnectionString);
}
//third begin a transaction
if (transactionHandler.Transaction == null)
{
transactionHandler.Transaction = new DbTransaction(transactionHandler.Connection.BeginTransaction());
}
//furth add observer
if (transactionHandler.Transaction != null && observer != null)
{
transactionHandler.Transaction.AddObserver(observer);
}
}
public void AddObserver(IDbTransactionObserver observer)
{
if (m_observers.Contains(observer) == false)
{
m_observers.Add(observer);
}
}
public void AddObserver(IDbTransactionObserver observer)
{
_observers.Add(observer);
}
