/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="cmd">The command this instance will be associated with.</param>
public ScalarExecutor(Core.IScalarCommand cmd)
: base(cmd)
{
var link = base.Link as IDataLink;
if (link == null)
{
throw new InvalidOperationException(
"Link '{0}' of command '{1}' is not a direct link.".FormatWith(base.Link, cmd));
}
}
/// <summary>
/// Factory method invoked to create an executor to execute the given scalar command.
/// </summary>
/// <param name="command">The command to execute.</param>
/// <returns>An executor able to execute de command.</returns>
public IScalarExecutor CreateScalarExecutor(Core.IScalarCommand command)
{
if (command == null)
{
throw new ArgumentNullException("command", "Command cannot be null.");
}
if (command.IsDisposed)
{
throw new ObjectDisposedException(command.ToString());
}
if (!object.ReferenceEquals(this, command.Link))
{
throw new InvalidOperationException(
"This link '{0}' is not the same as the link of command '{1}'."
.FormatWith(this, command));
}
return(new ScalarExecutor(command));
}
Core.IScalarExecutor Core.IDataLink.CreateScalarExecutor(Core.IScalarCommand command)
{
return(this.CreateScalarExecutor(command));
}
