public static void Main()
{
var someBookstore = new Bookstore("Shakespeare and Company");
var witchesAbroad = new Book("Witches abroad", Genre.Fantasy, 301);
someBookstore.Add(witchesAbroad);
var hatFullOfSky = new Book("Hat full of sky", Genre.Fantasy, 310);
someBookstore.Add(hatFullOfSky);
var gameOfThrones = new Book("Game of thrones", Genre.Fantasy, 900);
someBookstore.Add(gameOfThrones);
var deathOnTheNile = new Book("Death on the Nile", Genre.Crime, 400);
someBookstore.Add(deathOnTheNile);
var historyOfTheBalkans = new Book("History of the Balkans", Genre.History, 1120);
someBookstore.Add(historyOfTheBalkans);
Console.WriteLine(someBookstore);
var ruleOnlyFantasy = new ExpressionSpecification <Book>(b => b.Genre == Genre.Fantasy);
var ruleLargeBooks = new ExpressionSpecification <Book>(b => b.Pages > 1000);
var rulePagesBelow500 = new ExpressionSpecification <Book>(b => b.Pages < 500);
var ruleFantasyOrLargeBooks = ruleOnlyFantasy.Or(ruleLargeBooks);
var allBooks = someBookstore.All();
var largeBooks = allBooks.FindAll(b => ruleLargeBooks.IsSatisfiedBy(b));
Console.WriteLine("Large books:");
foreach (var book in largeBooks)
{
Console.WriteLine(book);
}
Console.WriteLine();
var fantasyAndLargeBooks = allBooks.FindAll(b => ruleFantasyOrLargeBooks.IsSatisfiedBy(b));
Console.WriteLine("Fantasy and large books:");
foreach (var book in fantasyAndLargeBooks)
{
Console.WriteLine(book);
}
Console.WriteLine();
}
public static void Main(string[] args)
{
var mobiles = new List <Mobile>()
{
new Mobile(MobileBrand.Apple, MobileType.Smart),
new Mobile(MobileBrand.Samsung, MobileType.Smart),
new Mobile(MobileBrand.Samsung, MobileType.Basic)
};
var smartSpecification = new ExpressionSpecification <Mobile>(mobile => mobile.Type == MobileType.Smart);
var appleSpecification = new ExpressionSpecification <Mobile>(mobile => mobile.Brand = MobileBrand.Apple);
// find all smart mobiles;
var smartMobiles = mobiles.FindAll(mobile => smartSpecification.IsSatisfiedBy(mobile));
// find all apple smart mobiles;
var andSpecification = new AndSpecification <Mobile>(smartSpecification, appleSpecification);
var appleSmartMobiles = mobiles.FindAll(mobile => andSpecification.IsSatisfiedBy(mobile));
Console.WriteLine("Hello World!");
}