static void Main(string[] args)
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
"Demonstrating Requirement #2".title();
DBElement <int, string> elem = itemFactory.Create();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now.AddDays(-4);
elem.children.AddRange(new List <int> {
1, 2, 3
});
elem.payload = "elem's payload";
WriteLine("\n Item to be inserted.. \n");
elem.showElement();
db.insert(1, elem);
db.showDB();
WriteLine("\n Inserting second element into DB :");
DBElement <int, string> elem2 = new DBElement <int, string>();
elem2.name = "element2";
elem2.descr = "test element2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
1, 2, 3, 4
});
elem2.payload = "elem2's payload";
WriteLine("\nItem to be inserted.. \n");
elem2.showElement();
db.insert(2, elem2);
WriteLine("\n\n DB after insertion:");
db.showDB();
WriteLine("\n\n DB after insertion:");
db.showDB();
var dict = new Dictionary <int, DBElement <int, string> >();
var keys = db.searchForTimeStamp(DateTime.Now.AddDays(-6), DateTime.Now.AddDays(-3));
Console.WriteLine("\nRunning a query on database..\n");
Console.WriteLine("\n\nThe result are the following keys:\n\n");
foreach (var item in keys)
{
dynamic result = db.searchValue(item);
Console.Write("{0}, ", item);
dict.Add(item, result);
}
DBFactory <int, DBElement <int, string> > dbFactory = new DBFactory <int, DBElement <int, string> >(dict);
"Immutable database:".title('.');
Console.WriteLine("\n\nImmutable database is of type DBFactory, which is immutable (Found in DBFactory.cs).");
}
private void test3()
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
DBEngine <string, DBElement <string, List <string> > > dbString = new DBEngine <string, DBElement <string, List <string> > >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
//---------------Search for data with specified time interval---------------
"Search for data with specified time interval:".title('.');
WriteLine("\n\n Elements in DB :");
var elem = new DBElement <int, string>();
elem.name = "old element";
elem.descr = "old test element";
elem.timeStamp = DateTime.Now.AddDays(-3);
elem.children.AddRange(new List <int> {
85, 27, 65
});
elem.payload = "old elem's payload";
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.name = "old2 element";
elem1.descr = "old2 test element";
elem1.timeStamp = DateTime.Now.AddDays(-2);
elem1.children.AddRange(new List <int> {
11, 12, 13
});
elem1.payload = "old2 elem's payload";
WriteLine("\n\n Search for Key which is created between {0} and {1}:\n\n", DateTime.Now.AddDays(-5).Date, DateTime.Now.AddDays(-1).Date);
db.insert(99, elem);
db.insert(50, elem1);
db.showDB();
WriteLine();
var resultkeys = db.searchForTimeStamp(DateTime.Now.AddDays(-5), DateTime.Now.AddDays(-1));
WriteLine("\n\nThe result is:\n\n");
foreach (var item in resultkeys)
{
Write("{0}, ", item);
}
//---------------Search for data with specified time interval---------------
}