private static void TestDb()
{
Console.WriteLine("TestDb");
using (var context = GetContext())
{
var query = context.People.Where(p => p.Id % 2 == 0);
var visitor = new EqualsToNotEqualsVisitor();
var task1 = query.FirstAsync();
task1.ContinueWith(t => t.Result).Wait();
Console.WriteLine("FirstAsync = '{0}'", task1.Result.Name);
var task2 = query.InterceptWith(visitor).FirstAsync();
task2.ContinueWith(t => t.Result).Wait();
Console.WriteLine("FirstAsync [InterceptWith] = '{0}'", task2.Result.Name);
var task3 = query.ToListAsync();
task3.ContinueWith(t => t.Result).Wait();
Console.WriteLine("ToListAsync = '{0}'", String.Join <string>(", ", task3.Result.Select(x => x.Name)));
var task4 = query.InterceptWith(visitor).ToListAsync();
task4.ContinueWith(t => t.Result).Wait();
Console.WriteLine("ToListAsync [InterceptWith] = '{0}'", String.Join <string>(", ", task4.Result.Select(x => x.Name)));
}
}
private static void TestAsync()
{
Console.WriteLine("TestAsync");
var query = Enumerable.Range(0, 10).AsQueryable().Where(n => n % 2 == 0);
var visitor = new EqualsToNotEqualsVisitor();
query = query.InterceptWith(visitor);
var task = query.FirstAsync(n => n > 5, CancellationToken.None);
task.ContinueWith(t => t.Result).Wait();
Console.WriteLine("FirstAsync = '{0}'", task.Result);
}
private static void TestEqualsToNotEqualsVisitor()
{
Console.WriteLine("TestEqualsToNotEqualsVisitor");
var query = Enumerable.Range(0, 10).AsQueryable().Where(n => n % 2 == 0);
Console.WriteLine("Print even numbers");
foreach (var item in query)
{
Console.Write(item + " ");
}
Console.WriteLine();
Console.WriteLine("Print odd numbers");
var visitor = new EqualsToNotEqualsVisitor();
foreach (var item in query.InterceptWith(visitor).Where(x => x >= 0))
{
Console.WriteLine(item);
}
}
