/// <summary>
/// 打开连接
/// </summary>
/// <returns>是否打开,是则为此时打开,否则为之前已打开</returns>
public bool Open()
{
if (_connection != null /* && _connection.State == ConnectionState.Open*/)
{
return(false);
}
_connection = MySqlConnectionsManager.InitConnection(ConnectionStringName);
IsLockConnection = true;
return(true);
}
/// <summary>
/// 析构
/// </summary>
public void Dispose()
{
if (IsDisposed)
{
return;
}
IsDisposed = true;
if (!IsLockConnection)
{
MySqlConnectionsManager.Close(Connection, DataBase.ConnectionStringName);
}
}
internal ConnectionScope(MySqlDataBase dataBase)
{
IsLockConnection = dataBase.IsLockConnection;
DataBase = dataBase;
Transaction = dataBase.Transaction;
if (IsLockConnection)
{
Connection = dataBase._connection;
}
else
{
Connection = MySqlConnectionsManager.GetConnection(dataBase.ConnectionStringName);
}
}
/// <summary>
/// 执行与释放或重置非托管资源相关的应用程序定义的任务。
/// </summary>
public void Dispose()
{
if (_isDisposed)
{
return;
}
_isDisposed = true;
DoDispose();
if (_connection != null)
{
_connection = null;
IsLockConnection = false;
if (Transaction != null)
{
Transaction.Rollback();
Transaction = null;
}
MySqlConnectionsManager.Close(_connection, ConnectionStringName);
}
}
/// <summary>
/// 构造
/// </summary>
protected MySqlDataBase()
{
MySqlConnectionsManager.InternalInitialize();
DependencyScope.DisposeFunc.Add(Dispose);
}
/// <summary>
/// 初始化连接对象
/// </summary>
/// <returns></returns>
private Task <MySqlConnection> InitConnectionAsync()
{
var connection = MySqlConnectionsManager.InitConnection(ConnectionStringName);
return(Task.FromResult(connection));
}