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).");
}
static void Main(string[] args)
{
"Testing Item Factory".title();
ItemFactory <int, string> itemFactoryInstance = new ItemFactory <int, string>();
var newElement = itemFactoryInstance.Create();
Console.WriteLine("\nThe new element created using Item factory of {0}\n is of type {1}", itemFactoryInstance.GetType(), newElement.GetType());
ItemFactory <string, List <string> > itemFactoryInstance1 = new ItemFactory <string, List <string> >();
var newElement1 = itemFactoryInstance1.Create();
Console.WriteLine("\n\nThe new element created using Item factory of\n {0} is of type {1}", itemFactoryInstance1.GetType(), newElement1.GetType());
}
private void test()
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
int key = 0;
//-----------Modify Metadata--------------------------
"Modify metadata".title('.');
WriteLine("\n Elements in DB :");
db.showDB();
key = 2;
string name = "Nitish";
string description = "MS in CE";
WriteLine("\n\n\n New Details for metadata of key {0} :", key);
WriteLine("\n Name : {0}", name);
WriteLine("\n Description : {0}", description);
WriteLine();
db.modifyMetadata(key, name, description);
WriteLine("\n\n DB after the change :");
db.showDB();
WriteLine();
"".demarcation();
//-----------Modify Metadata--------------------------
//-------------------Replace Value instance-----------------------
"Replace value instance".title('.');
WriteLine("\n\n Elements in DB :");
DBElement <int, string> elem = itemFactory.Create();
db.showDB();
key = 2;
//DBElement<int, string> elem = new DBElement<int, string>();
elem.name = "new element";
elem.descr = "new test element";
elem.timeStamp = DateTime.Now;
elem.children.AddRange(new List <int> {
7, 8, 9
});
elem.payload = "new elem's payload";
WriteLine("\n\n New instance for replacement for key {0}:\n", key);
elem.showElement();
WriteLine("\n\n Replace instance of a key :");
db.replaceKeyInstance(key, elem);
WriteLine("\n\n DB after the change :");
db.showDB();
WriteLine();
"".demarcation();
//-------------------Replace Value instance-----------------------
}