public IEnumerable <Movie> Filter(IMovieSpecification specification)
{
foreach (var item in _list)
{
var movie = (Movie)item;
if (specification.IsSatisfiedBy(movie))
{
yield return(movie);
}
}
}
public InverseSpecification(IMovieSpecification specification)
{
_specification = specification;
}
public OrSpecification(IMovieSpecification left, IMovieSpecification right)
{
_left = left;
_right = right;
}