} // ctor
public void Clear()
{
if (connection != null)
{
if (connection.IsConnected)
{
connection.Dispose();
}
connection = null;
}
} // proc Clear
/// <summary></summary>
/// <param name="connection"></param>
/// <param name="selectorName"></param>
/// <returns></returns>
public virtual PpsDataSelector CreateSelector(IPpsConnectionHandle connection, string selectorName)
{
// support own view definitions
var view = Application.GetViewDefinition(selectorName, false);
if (view.SelectorToken.DataSource == this)
{
return(view.SelectorToken.CreateSelector(connection));
}
else // return nothing
{
return(null);
}
} // func CreateSelector
public PooledConnection(IPpsConnectionHandle connection)
{
if (connection == null)
{
throw new ArgumentNullException(nameof(connection));
}
dataSourceName = connection.DataSource.Name;
createdAt = Environment.TickCount;
connection.Disposed += (sender, e) => Clear();
this.connection = connection;
} // ctor
} // proc InitializeColumnsAsync
public PpsDataSelector CreateSelector(IPpsConnectionHandle connection, string alias, bool throwException = true)
{
PpsDataSelector ret = null;
if (String.IsNullOrEmpty(path))
{
ret = InvokeCreateSelector((PpsSysConnectionHandle)connection, dataSource.application, throwException);
}
else
{
if (!dataSource.application.FirstChildren <DEConfigItem>(
c => String.Compare(c.Name, path, StringComparison.OrdinalIgnoreCase) == 0,
c => ret = InvokeCreateSelector((PpsSysConnectionHandle)connection, c, throwException)
))
{
if (throwException)
{
throw new ArgumentOutOfRangeException($"Path '{path}' not found.");
}
return(null);
}
}
return(ret);
} // func CreateSelector
/// <summary></summary>
/// <param name="dataSource"></param>
/// <param name="connection"></param>
public PpsDataTransaction(PpsDataSource dataSource, IPpsConnectionHandle connection)
{
this.dataSource = dataSource ?? throw new ArgumentNullException(nameof(dataSource));
this.connection = connection ?? throw new ArgumentNullException(nameof(connection));
} // ctor
/// <summary>Create a data manipulation session.</summary> /// <param name="connection"></param> /// <returns></returns> public virtual PpsDataTransaction CreateTransaction(IPpsConnectionHandle connection) => throw new NotImplementedException();
/// <summary>Create a synchronization session for the client.</summary> /// <param name="connection"></param> /// <param name="lastSyncronizationStamp"></param> /// <param name="leaveConnectionOpen"></param> /// <returns></returns> public virtual PpsDataSynchronization CreateSynchronizationSession(IPpsConnectionHandle connection, long lastSyncronizationStamp, bool leaveConnectionOpen) => throw new NotImplementedException();
/// <summary></summary> /// <param name="connection"></param> /// <param name="lastSyncronizationStamp"></param> /// <param name="leaveConnectionOpen"></param> /// <returns></returns> public override PpsDataSynchronization CreateSynchronizationSession(IPpsConnectionHandle connection, long lastSyncronizationStamp, bool leaveConnectionOpen) => new SqlSynchronizationTransaction(Application, (IPpsSqlConnectionHandle)connection, lastSyncronizationStamp, leaveConnectionOpen);
} // proc InitializeSchemaCore
#endregion
/// <summary></summary>
/// <param name="connection"></param>
/// <returns></returns>
public override PpsDataTransaction CreateTransaction(IPpsConnectionHandle connection)
=> new SqlDataTransaction(this, connection);
public SqlDataTransaction(PpsSqlDataSource dataSource, IPpsConnectionHandle connectionHandle)
: base(dataSource, connectionHandle)
{
} // ctor
/// <summary></summary> /// <param name="connection"></param> /// <param name="lastSyncronizationStamp"></param> /// <param name="leaveConnectionOpen"></param> /// <returns></returns> public override PpsDataSynchronization CreateSynchronizationSession(IPpsConnectionHandle connection, long lastSyncronizationStamp, bool leaveConnectionOpen = false) => new PpsDataSynchronization(application, connection, leaveConnectionOpen);
} // proc CreateSelectorTokenAsync
/// <summary></summary>
/// <param name="connection"></param>
/// <returns></returns>
public override PpsDataTransaction CreateTransaction(IPpsConnectionHandle connection)
=> throw new NotSupportedException();
