5.5 Implementation of the remaining methods

5.5 Implementation of the remaining methods

Implementation of the remaining methods in the IEngine interface is not complicated. On the sequence diagram in Figure 17 you can see how each method is accessing the other engine wrapper classes.

Fig. 17. Calling sequence for Simple River

The calling sequence for methods not shown in Figure 17 is given in Figure 14, Figure 15 and Figure 16. Note that for some of the methods the full implementation is done in the SimpleRiverEngineWrapper class. The methods GetCurrentTime, GetInputTime and GetEarliestNeededTime are all invoking the GetCurrentTime method in the SimpleRiverDotNetAccess class. The returned time is the engine local time. This time is converted to the ModifiedJulianTime in the SimpleRiverEngineWrapper (see code below).

public ITime GetCurrentTime()
//From Class: Oatc.OpenMI.Examples.ModelComponents.SimpleRiver.Wrapper.SimpleRiverEngineWrapper : Oatc.OpenMI.Sdk.Wrapper.IEngine		
{
   double time = _simulationStartTime + _simpleRiverEngine.GetCurrentTime() / ((double)(24*3600));
   return new Oatc.OpenMI.Sdk.Backbone.TimeStamp(time);
}