public static void MyTest()
{
// create the data context (to get data from)
var ds = new UniversalDataSource(
new FooDataSource(),
new BarDataSource()
);
var realTimeDataContext = new RealTimeDataContext(ds);
var historicalDataContext = new HistoricalDataContext(ds, DateTime.MinValue);
var fooId = new FooIdentifier("onetuhoenthuo");
var barId = new BarIdentifier("onetuhoenthuo");
// testing dispatch
Assert.AreEqual(-1, realTimeDataContext.GetValue(fooId));
Assert.AreEqual(-2, historicalDataContext.GetValue(fooId));
Assert.AreEqual(-3, realTimeDataContext.GetValue(barId));
Assert.AreEqual(-4, historicalDataContext.GetValue(barId));
}
public override DataSource GetDataSource(UniversalDataSource universalDataSource)
{
return(universalDataSource.FooDS);
}
/// <summary> /// returns the appropriate data source for THIS kind of identifier (abstractly) /// </summary> /// <param name="universalDataSource"></param> /// <returns></returns> public abstract DataSource GetDataSource(UniversalDataSource universalDataSource);
public HistoricalDataContext(UniversalDataSource dataSource, DateTime asof) : base(dataSource)
{
AsOf = asof;
}
public RealTimeDataContext(UniversalDataSource dataSource) : base(dataSource)
{
}
protected DataContext(UniversalDataSource dataSource)
{
DataSource = dataSource;
}
