public static IUnitOfWork From(DbConnection dbConnection, DbTransaction dbTransaction)
{
UnitOfWork unitOfWork;
if ((object)dbConnection == null)
throw new ArgumentNullException(nameof(dbConnection));
unitOfWork = new UnitOfWork(dbConnection, dbTransaction);
return unitOfWork;
}
/// <summary>
/// Creates a new unit of work (and opens the underlying connection) for the given connection type and connection string with an optional transaction started.
/// </summary>
/// <param name="connectionType"> The run-time type of the connection to use. </param>
/// <param name="connectionString"> The ADO.NET provider connection string to use. </param>
/// <param name="transactional"> A value indicating whether a new local data source transaction isstarted on the connection. </param>
/// <param name="isolationLevel"> A value indicating the transaction isolation level. </param>
/// <returns> An instance of teh unitOfWork ready for execution of operations. This should be wrapped in a using(...){} block for an optimal usage scenario. </returns>
public static IUnitOfWork Create(Type connectionType, string connectionString, bool transactional, IsolationLevel isolationLevel = IsolationLevel.Unspecified)
{
UnitOfWork unitOfWork;
DbConnection dbConnection;
DbTransaction dbTransaction;
const bool OPEN = true;
if ((object)connectionType == null)
throw new ArgumentNullException(nameof(connectionType));
if ((object)connectionString == null)
throw new ArgumentNullException(nameof(connectionString));
dbConnection = (DbConnection)Activator.CreateInstance(connectionType);
if (OPEN)
{
dbConnection.ConnectionString = connectionString;
dbConnection.Open();
if (transactional)
dbTransaction = dbConnection.BeginTransaction(isolationLevel);
else
dbTransaction = null;
}
unitOfWork = new UnitOfWork(dbConnection, dbTransaction);
return unitOfWork;
}
