/// <summary>
/// Sets the selection function.
/// </summary>
/// <param name="function"></param>
/// <returns></returns>
public Task SetFunction(SerializableFunc <TIn, TOut> function)
{
_functionTemplate = function;
return(TaskDone.Done);
}
/// <summary>
/// Set the select function.
/// </summary>
/// <param name="function">Selection function for each item.</param>
/// <returns></returns>
public Task SetFunction(SerializableFunc <TIn, IEnumerable <TOut> > function)
{
_function = function.Value.Compile();
return(TaskDone.Done);
}
/// <summary>
/// Set the where function.
/// </summary>
/// <param name="function">Filter function for each item. Evaluation to 'true' will forward results to the output stream.</param>
/// <returns></returns>
public Task SetFunction(SerializableFunc <TIn, bool> function)
{
_function = function.Value.Compile();
return(TaskDone.Done);
}