public static void Main(string[] args)
{
Console.WriteLine("Hello QueryInterceptor.EntityFrameworkCore");
Console.WriteLine("Enable ExpressionOptimizer");
ExtensibilityPoint.QueryOptimizer = ExpressionOptimizer.visit;
var visitor = new EqualsToNotEqualsVisitor();
// doit
IQueryable <int> query = Enumerable.Range(0, 10).AsQueryable().Where(n => n > 0 && n % 2 == 0);
List <int> numbersEven = query.ToList();
Console.WriteLine("numbersEven > 0 = {0}", string.Join(", ", numbersEven));
List <int> numbersOdd = query.InterceptWith(visitor).Where(x => x >= 0).ToList();
Console.WriteLine("numbersOdd > 0 = {0}", string.Join(", ", numbersOdd));
var context = new NorthwindModel();
if (context.Database.EnsureCreated())
{
context.Cars.Add(new Car {
Brand = "Ford", Color = "Blue"
});
context.Cars.Add(new Car {
Brand = "Fiat", Color = "Red"
});
context.Cars.Add(new Car {
Brand = "Alfa", Color = "Black"
});
context.SaveChanges();
}
var carFirstOrDefault = context.Cars.AsQueryable().InterceptWith(visitor).Where(x => x.Color == "Blue").FirstOrDefault();
Console.WriteLine("carFirstOrDefault {0}", JsonConvert.SerializeObject(carFirstOrDefault, Formatting.Indented));
var carFirstOrDefaultAsync = context.Cars.AsQueryable().InterceptWith(visitor).Where(x => x.Color == "Blue").FirstOrDefaultAsync();
Console.WriteLine("carAsync {0}", JsonConvert.SerializeObject(carFirstOrDefaultAsync.Result, Formatting.Indented));
var carToListAsync = context.Cars.AsQueryable().InterceptWith(visitor).Where(x => x.Color == "Blue").ToListAsync();
Console.WriteLine("carToListAsync {0}", JsonConvert.SerializeObject(carToListAsync.Result, Formatting.Indented));
Console.WriteLine("Press key...");
Console.ReadLine();
}
public static void Main(string[] args)
{
Console.WriteLine("Hello QueryInterceptor.Core");
IQueryable <int> query = Enumerable.Range(0, 10).AsQueryable().Where(n => n > 0 && n % 2 == 0);
List <int> numbersEven = query.ToList();
Console.WriteLine("numbersEven > 0 = {0}", string.Join(", ", numbersEven));
var visitor = new EqualsToNotEqualsVisitor();
List <int> numbersOdd = query.InterceptWith(visitor).Where(x => x >= 0).ToList();
Console.WriteLine("numbersOdd > 0 = {0}", string.Join(", ", numbersOdd));
Console.WriteLine("Press key...");
Console.ReadLine();
}