public void FindRecordsByCompositeKeyTest()
{
DateTime dt1 = new DateTime(2017, 03, 13);
DateTime dt2 = new DateTime(2017, 03, 14);
var taskDoneCollection = new CompositeKeyCollection <UserType, string, int>();
taskDoneCollection.Add(new UserType(dt1), "Developers", 10);
taskDoneCollection.Add(new UserType(dt1), "Managers", 12);
taskDoneCollection.Add(new UserType(dt1), "Analiytics", 15);
taskDoneCollection.Add(new UserType(dt2), "Developers", 12);
taskDoneCollection.Add(new UserType(dt2), "Managers", 10);
taskDoneCollection.Add(new UserType(dt2), "Analiytics", 4);
var key1 = new UserType(dt1);
var key2 = "Developers";
var pairs = taskDoneCollection.Find(key1, key2);
int expectedRecordsCount = 1;
Assert.AreEqual(expectedRecordsCount, pairs.Count, "Just one key value pair was expected");
pairs = taskDoneCollection.Find(key1, null);
expectedRecordsCount = 3;
Assert.AreEqual(expectedRecordsCount, pairs.Count, "Three records was expected");
pairs = taskDoneCollection.Find(null, key2);
expectedRecordsCount = 2;
Assert.AreEqual(expectedRecordsCount, pairs.Count, "Only two records was expected");
}
static void Main(string[] args)
{
// В проекте CompositeKeyCollection имеется 3 реализации класса коллекций с композитными (составными) ключами:
// 1. CompositeKeyCollection<TKey1, Tkey2, TData> - обычная обобщенная реализация класса коллекции (не потокобезопасная)
// 2. ThreadSafeCompositeKeyCollection<Tkey1, Tkey2, TData> - потокобезопасная реализация класса CompositeKeyCollection<TKey1, TKey2, TData>
// 3. TransactionalCompositeKeyCollection<TKey1, TKey2, TData> - класс коллекции с комопозитными ключами и поддержкой транзакционности на операции вставки и удаления записей в коллекцию (PS.: пока еще не потокобезопасная)
// Примеры использования коллекций:
// 1. CompositeKeyCollection<TKey1, Tkey2, TData>
var currentDate = DateTime.Today;
var tasksDoneCollection1 = new CompositeKeyCollection <UserType, string, int>();
tasksDoneCollection1.Add(new UserType(currentDate), "Developers", 10);
tasksDoneCollection1.Add(new UserType(currentDate), "Managers", 12);
tasksDoneCollection1.Add(new UserType(currentDate.AddDays(1)), "Developers", 7);
PrintCollection(tasksDoneCollection1);
var key1 = new UserType(currentDate);
var key2 = "Developers";
tasksDoneCollection1.Remove(key1, key2);
PrintCollection(tasksDoneCollection1);
key1 = new UserType(currentDate.AddDays(1));
var items = tasksDoneCollection1.Find(key1, key2);
Console.WriteLine("Items found: {0}", items.Count);
var value = tasksDoneCollection1[key1, key2];
Console.WriteLine("Value in dictionary: {0}", value);
tasksDoneCollection1.Clear();
// 2. ThreadSafeCompositeKeyCollection<Tkey1, Tkey2, TData>
_collection2 = new ThreadSafeCompositeKeyCollection <UserType, string, int>();
Task.Run(() => RunFirstWriteThread());
Task.Run(() => RunSecondWriteThread());
Task.Run(() => RunShowKeyCountThread());
// 3.TransactionalDictionary<TKey1, TKey2, TData>
var collection3 = new TransactionalCompositeKeyCollection <UserType, string, int>();
collection3.Add(new UserType(DateTime.Today), "Managers", 10);
collection3.Add(new UserType(DateTime.Today), "Analitics", 15);
// adding an invalid object to the collection
try
{
collection3.Add(null, "Developers", 20);
}
catch (ArgumentNullException ex) { }
Console.Read();
}