/// <summary>
/// Specifies the connection which is to be used in the execution.
/// </summary>
/// <param name="connectionKey">Is a connection key as specified in the connection delegate method.</param>
public static ConnectBy ConnectBy(ConnectionKey connectionKey)
{
return(Call <ConnectBy>(Assembly.GetCallingAssembly(), (ca) =>
{
if (connectionKey == null)
{
_Throw(QueryTalkExceptionType.ArgumentNull, "connectionKey", ".ConnectBy");
}
return new ConnectBy(new d(), connectionKey);
}));
}
/// <summary>
/// Specifies a connection to be used in execution.
/// </summary>
/// <typeparam name="T">The IConnectable type.</typeparam>
/// <param name="connectable">A predecessor object.</param>+
/// <param name="connectionKey">A connection key that determines the connection.</param>
public static T ConnectBy <T>(this T connectable, ConnectionKey connectionKey)
where T : IConnectable
{
if (connectable is DbNode)
{
// the connection key of a node graph should be bound to the subject
((IConnectable)((DbNode)(object)connectable).Root).SetConnectionKey(connectionKey);
}
else if (connectable is DbRow)
{
var row = (DbRow)(object)connectable;
row.TrySetNode();
connectable.SetConnectionKey(connectionKey);
}
else
{
connectable.SetConnectionKey(connectionKey);
}
return(connectable);
}
