public static void StoreFirstCar(IObjectContainer db)
{
Car car1 = new Car("Ferrari");
Pilot pilot1 = new Pilot("Michael Schumacher", 100);
car1.Pilot = pilot1;
db.Store(car1);
}
public static void RetrieveCarQBE(IObjectContainer db)
{
SensorReadout protoReadout = new SensorReadout(new double[] { 0.6, 0.2 }, DateTime.MinValue, null);
IList protoHistory = new ArrayList();
protoHistory.Add(protoReadout);
Car protoCar = new Car(null, protoHistory);
IObjectSet result = db.QueryByExample(protoCar);
ListResult(result);
}
public static void StoreSecondCar(IObjectContainer db)
{
Pilot pilot2 = new Pilot("Rubens Barrichello", 99);
Car car2 = new Car("BMW");
car2.Pilot = pilot2;
car2.Snapshot();
car2.Snapshot();
db.Store(car2);
}
public static void StoreCars(IObjectContainer db)
{
Pilot pilot1 = new Pilot("Michael Schumacher", 100);
Car car1 = new Car("Ferrari");
car1.Pilot = pilot1;
car1.Snapshot();
db.Store(car1);
Pilot pilot2 = new Pilot("Rubens Barrichello", 99);
Car car2 = new Car("BMW");
car2.Pilot = pilot2;
car2.Snapshot();
car2.Snapshot();
db.Store(car2);
}
public SensorReadout(double[] values, DateTime time, Car car)
{
_values = values;
_time = time;
_car = car;
}
public static void UpdateCollection()
{
IEmbeddedConfiguration config = Db4oEmbedded.NewConfiguration();
config.Common.ObjectClass(typeof(Car)).CascadeOnUpdate(true);
using(IObjectContainer db = Db4oEmbedded.OpenFile(config, YapFileName))
{
IQuery query = db.Query();
query.Constrain(typeof (Car));
IObjectSet result = query.Descend("_history").Execute();
IList history = (IList) result.Next();
history.RemoveAt(0);
db.Store(history);
Car proto = new Car(null, null);
result = db.QueryByExample(proto);
foreach (Car car in result)
{
foreach (object readout in car.History)
{
Console.WriteLine(readout);
}
}
}
}
public bool Match(Car car)
{
foreach (SensorReadout sensor in car.History)
{
if (Array.IndexOf(sensor.Values, 0.3) > -1
&& Array.IndexOf(sensor.Values, 0.1) > -1)
{
return true;
}
}
return false;
}