//function to edit description
public XElement editdescr(XElement dbe, DBEngine <int, DBElement <int, string> > db)
{
Console.Write("\n ----------Edit description Operation----------");
Console.Write("\nediting the description of key= 4");
Console.WriteLine("\n");
Console.WriteLine("\n Bachelors changed to BE ");
bool result = db.editDescr <int, DBElement <int, string>, string>(Int32.Parse((dbe.Element("key").Value)), " BE ");
db.showDB();
if (result == true)
{
XElement t = new XElement("result", "\n element edited successfully ");
return(t);
}
else
{
XElement f = new XElement("result", " Editing Failure ");
return(f);
}
}
void TestR4()
{
"Demonstrating Requirement #4".title();
WriteLine("\n Database before addition ");
db.showDB();
//Demonstrating addition of relationships
bool ar1 = db.addRelations <int, DBElement <int, string>, string>(1, 3);
bool ar2 = db.addRelations <int, DBElement <int, string>, string>(3, 0);
WriteLine("\n \n addition of relationships ");
db.showDB();
if (ar1 && ar2)
{
WriteLine(" \n addition Succesfull ");
}
//Demonstrating removal of relationships
WriteLine(" \n DataBase before removing relationships");
db.showDB();
bool remove1 = db.removeRelation <int, DBElement <int, string>, string>(1, 2);
bool remove2 = db.removeRelation <int, DBElement <int, string>, string>(3, 1);
WriteLine();
WriteLine("\n DataBase contents after removal");
db.showDB();
if (remove1 && remove2)
{
WriteLine("\n Removal Successful");
}
//Demonstrating editing of metadata text
WriteLine("\n DataBase before editing metadata text ");
db2.showEnumerableDB();
bool editn1 = db2.editName <string, DBElement <string, List <string> >, List <string> >("2", "Edited name for second element");
bool editn2 = db2.editDescr <string, DBElement <string, List <string> >, List <string> >("2", "New description for second element");
WriteLine("\n \n DataBase after editing");
db2.showEnumerableDB();
}
static void Main(string[] args)
{
"Testing ItemEditor Package".title('=');
WriteLine();
Write("\n --- Test DBElement<int,string> ---");
// new database created to test the functionaity
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
// new elements are created and inserted to the database
DBElement <int, string> elem1 = new DBElement <int, string>("first element", "first element description");
DBElement <int, string> elem2 = new DBElement <int, string>("second element", "second element description");
DBElement <int, string> elem3 = new DBElement <int, string>("third element", "third element description");
elem1.payload = "Payload of 1";
elem1.children.AddRange(new List <int> {
1, 2, 3
});
elem2.payload = "Payload of 2";
elem2.children.AddRange(new List <int> {
11, 22, 33
});
elem3.payload = "Payload of 3";
elem3.children.AddRange(new List <int> {
111, 222, 333
});
// inserting elements to database
db.insert(1, elem1);
db.insert(2, elem2);
db.insert(3, elem3);
db.showDB();
// testing addition of relationships to elements
Write("\n\n Testing of addition of new relationships");
bool addr1 = db.addRelations <int, DBElement <int, string>, string>(1, 2);
bool addr2 = db.addRelations <int, DBElement <int, string>, string>(2, 3);
bool addr3 = db.addRelations <int, DBElement <int, string>, string>(3, 111);
db.showDB();
// testing removing relationships to elements
Write("\n\n Testing of removal of relations");
bool remr1 = db.removeRelation <int, DBElement <int, string>, string>(2, 11);
bool remr2 = db.removeRelation <int, DBElement <int, string>, string>(1, 3);
db.showDB();
if (remr1 && remr2)
{
Write("\n \n Removal succeded");
}
// Testing editing of text data
Write("\n\n Testing of editing of text data");
bool ed_name1 = db.editName <int, DBElement <int, string>, string>(1, "renaming of element 1");
bool ed_descr = db.editDescr <int, DBElement <int, string>, string>(1, "editing description of element 1");
bool ed_inst = db.editInstance <int, DBElement <int, string>, string>(1, "new instance for element 1");
db.showDB();
Write("\n\n --- Test DBElement<string,List<string>> ---");
// creating elements to new database of type string,List of strings
DBElement <string, List <string> > new_elem1 = new DBElement <string, List <string> >("new element 1", "Description of 1");
DBElement <string, List <string> > new_elem2 = new DBElement <string, List <string> >("new element 2", "Description of 2");
DBElement <string, List <string> > new_elem3 = new DBElement <string, List <string> >("new element 3", "Description of 3");
//creating new database
DBEngine <string, DBElement <string, List <string> > > new_db = new DBEngine <string, DBElement <string, List <string> > >();
new_elem1.payload = new List <string> {
"First data in payload ", "Second data in payload", "Third data in payload"
};
new_elem1.children.AddRange(new List <string> {
"one", "two", "three"
});
new_elem2.payload = new List <string> {
"DP", "SMA", "OOD"
};
new_elem2.children.AddRange(new List <string> {
"four", "five", "six"
});
new_elem3.payload = new List <string> {
"CE", "CS", "EE"
};
new_elem3.children.AddRange(new List <string> {
"seven", "eight", "nine"
});
// inserting elements to database
new_db.insert("One", new_elem1);
new_db.insert("Two", new_elem2);
new_db.insert("Three", new_elem3);
new_db.showEnumerableDB();
// testing addition of relationships to elements
Write("\n\n testing addition of relationship ");
bool add1 = new_db.addRelations <string, DBElement <string, List <string> >, List <string> >("One", "two");
bool add2 = new_db.addRelations <string, DBElement <string, List <string> >, List <string> >("Two", "three");
bool add3 = new_db.addRelations <string, DBElement <string, List <string> >, List <string> >("Three", "one");
new_db.showEnumerableDB();
if (add1 && add2 && add3)
{
Write("\n \n Adding relationship successful.");
}
// testing removing relationships to elements
Write("\n \n Now going to test removing of relationships in DB-element: Element-One");
bool rem1 = new_db.removeRelation <string, DBElement <string, List <string> >, List <string> >("One", "Nine");
bool rem2 = new_db.removeRelation <string, DBElement <string, List <string> >, List <string> >("One", "two");
new_db.showEnumerableDB();
if (rem1 && rem2)
{
Write("\n \n Deleting of relationships succeeded ");
}
// Testing editing of text data
Write("\n \n Now going to test edition of name, description and replacing instance of payload with new instance in Element-One.");
new_db.editName <string, DBElement <string, List <string> >, List <string> >("One", "Edited name for Element-One");
new_db.editDescr <string, DBElement <string, List <string> >, List <string> >("One", "New description for Element-One");
new_db.editInstance <string, DBElement <string, List <string> >, List <string> >("One", new List <string> {
"New payload - String One", "New payload - String Two", "New payload - String Three"
});
new_db.showEnumerableDB();
WriteLine();
}