void TestR7()
{
"Demonstrating Requirement #7".title();
"The Value of a specified key".title('-');
WriteLine();
WriteLine(" Query : value of key = 14");
QueryProcessEngine <int, ListOfStrings> queryEngine = new QueryProcessEngine <int, ListOfStrings>(db1);
DBElement <int, ListOfStrings> elem1;
queryEngine.processValueQuery(14, out elem1);
elem1.showElement();
"The children of a specified key".title('-');
WriteLine(" Query : children of key = 1");
List <int> childrens;
queryEngine.processChildrenQuery(1, out childrens);
WriteLine(" Children of key = 1 ");
foreach (var item in childrens)
{
WriteLine(" --> " + item);
}
WriteLine();
"The set of all keys matching a specified pattern which defaults to all keys.".title('-');
WriteLine(" Query : Search keys which contains \"1\" in their keys value.");
Dictionary <int, DBElement <int, ListOfStrings> > results;
queryEngine.processPatternMatchInKeysQuery(queryEngine.defineQueryKeyPatternSearch("1"), out results);
DBFactory <int, DBElement <int, ListOfStrings> > dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
WriteLine();
"All keys that contain a specified string in their metadata section.".title('-');
WriteLine(" Query : Search keys/values which contains \"Scheduler\" text in their metadata value.");
results.Clear();
queryEngine.processPatternMatchInMetaDataQuery(queryEngine.defineQueryValuePatternSearch("Scheduler"), out results);
dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
WriteLine();
"All keys that contain values written within a specified time-date interval".title('-');
DateTime dt1 = new DateTime(1990, 6, 14, 0, 0, 0);
DateTime dt2 = new DateTime(1990, 6, 17, 0, 0, 0);
results.Clear();
queryEngine.processTimeIntervalQuery(queryEngine.defineTimeStampQuery(dt1, dt2), out results);
dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
}
static void Main(string[] args)
{
"Testing QueryProcessing Package".title('=');
WriteLine();
DBEngine <int, DBElement <int, ListOfStrings> > db1 = new DBEngine <int, DBElement <int, ListOfStrings> >();
DBElement <int, ListOfStrings> elem1 = new DBElement <int, ListOfStrings>();
elem1.name = "1st Key/Value = Int/ListOfStrings";
elem1.descr = "This is first element of Int/ListOfStrings key value pair.";
elem1.timeStamp = DateTime.Now;
elem1.children.AddRange(new List <int> {
100, 101, 102, 103, 104, 105
});
elem1.payload = new ListOfStrings();
elem1.payload.theWrappedData = new List <string> {
"CSE681", "SMA", "C#.net", "AI"
};
db1.insert(1, elem1);
DBElement <int, ListOfStrings> elem2 = new DBElement <int, ListOfStrings>();
elem2.name = "element int-ListOfString 2";
elem2.descr = "test element int-ListOfString 2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
10, 22, 23, 24, 25, 26
});
elem2.payload = new ListOfStrings();
elem2.payload.theWrappedData = new List <string> {
"CSE6812", "SMA2", "C#.net2", "AI2"
};
db1.insert(2, elem2);
WriteLine(" Query : value of key = 2");
QueryProcessEngine <int, ListOfStrings> queryEngine = new QueryProcessEngine <int, ListOfStrings>(db1);
DBElement <int, ListOfStrings> result;
queryEngine.processValueQuery(14, out result);
result.showElement();
WriteLine(" Query : Children of key = 1");
List <int> childrens;
queryEngine.processChildrenQuery(1, out childrens);
foreach (var item in childrens)
{
WriteLine(item);
}
WriteLine();
"The set of all keys matching a specified pattern which defaults to all keys.".title('-');
Dictionary <int, DBElement <int, ListOfStrings> > results;
queryEngine.processPatternMatchInKeysQuery(queryEngine.defineQueryKeyPatternSearch("1"), out results);
DBFactory <int, DBElement <int, ListOfStrings> > dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
WriteLine();
"All keys that contain a specified string in their metadata section.".title('-');
results.Clear();
queryEngine.processPatternMatchInMetaDataQuery(queryEngine.defineQueryValuePatternSearch("Scheduler"), out results);
dbFactory = new DBFactory <int, DBElement <int, ListOfStrings> >(results);
dbFactory.showDBFactory();
WriteLine();
"All keys that contain values written within a specified time-date interval".title('-');
DateTime dt1 = new DateTime(1990, 6, 14, 0, 0, 0);
DateTime dt2 = new DateTime(1990, 6, 17, 0, 0, 0);
results.Clear();
queryEngine.processTimeIntervalQuery(queryEngine.defineTimeStampQuery(dt1, dt2), out results);
dbFactory.showDBFactory();
}