public static UnitOfWorkScopeTransaction GetTransactionForScope(IUnitOfWorkFactory factory, UnitOfWorkScope scope, IsolationLevel isolationLevel, UoWScopeOptions options)
{
var useCompatibleTx = (options & UoWScopeOptions.UseCompatible) == UoWScopeOptions.UseCompatible;
var createNewTx = (options & UoWScopeOptions.CreateNew) == UoWScopeOptions.CreateNew;
//вот нельзя одновременно создавать новую транзакцию и использовать существующую
if (useCompatibleTx && createNewTx)
{
throw new InvalidOperationException("Несовместимые опции запуска транзакции");
}
if (options == UoWScopeOptions.UseCompatible)
{
var transaction = (from t in CurrentTransactions where t.IsolationLevel == isolationLevel select t).FirstOrDefault();
if (transaction != null)
{
transaction.AttachScope(scope);
return(transaction);
}
}
var newTransaction = new UnitOfWorkScopeTransaction(factory, isolationLevel);
newTransaction.AttachScope(scope);
CurrentTransactions.AddFirst(newTransaction);
return(newTransaction);
}
public void Commit()
{
if (_disposed)
{
throw new ObjectDisposedException("Cannot commit a disposed scope.");
}
_currentTransaction.Commit(this);
_currentTransaction = null;
}
public UnitOfWorkScope(IUnitOfWorkFactory factory, IsolationLevel isolationLevel, UoWScopeOptions scopeOptions)
{
_useCompatibleEnabled = scopeOptions.Contains(UoWScopeOptions.UseCompatible);
_disposed = false;
_factory = factory;
_transactionOptions = scopeOptions;
_autoComplete = (scopeOptions & UoWScopeOptions.AutoComplete) == UoWScopeOptions.AutoComplete;
_currentTransaction = UnitOfWorkScopeTransaction.GetTransactionForScope(factory, this, isolationLevel, scopeOptions);
RegisterScope(this);
}
private void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
if (_disposed)
{
return;
}
if (_currentTransaction != null)
{
if (_autoComplete)
{
#region Try commit
try
{
_currentTransaction.Commit(this);
}
catch
{
_currentTransaction.Rollback(this);
_currentTransaction = null;
UnRegisterScope(this);
_disposed = true;
throw;
}
#endregion
}
else
{
_currentTransaction.Rollback(this);
}
_currentTransaction = null;
}
UnRegisterScope(this);
_disposed = true;
}
