/// <summary>
/// Constructor requires the name of the field to use in the parent view to compute the weighted average on,
/// as well as the name of the field in the parent view to get the weight from.
/// compute the average for.
/// </summary>
public WeightedAverageView(WeightedAverageViewFactory viewFactory, AgentInstanceViewFactoryChainContext agentInstanceContext)
{
CurrentValue = Double.NaN;
SumW = Double.NaN;
SumXtimesW = Double.NaN;
_viewFactory = viewFactory;
_fieldNameXEvaluator = viewFactory.FieldNameX.ExprEvaluator;
_fieldNameWeightEvaluator = viewFactory.FieldNameWeight.ExprEvaluator;
_agentInstanceContext = agentInstanceContext;
}
public void TestCanReuse()
{
_factory.SetViewParameters(_viewFactoryContext, TestViewSupport.ToExprListMD(new Object[] { "Price", "Volume" }));
_factory.Attach(SupportEventTypeFactory.CreateBeanType(typeof(SupportMarketDataBean)), SupportStatementContextFactory.MakeContext(), null, null);
Assert.IsFalse(_factory.CanReuse(new FirstElementView(null)));
EventType type = WeightedAverageView.CreateEventType(SupportStatementContextFactory.MakeContext(), null, 1);
WeightedAverageViewFactory factoryTwo = new WeightedAverageViewFactory();
factoryTwo.FieldNameX = SupportExprNodeFactory.MakeIdentNodeMD("Price");
factoryTwo.EventType = type;
factoryTwo.FieldNameWeight = SupportExprNodeFactory.MakeIdentNodeMD("Price");
Assert.IsFalse(_factory.CanReuse(new WeightedAverageView(factoryTwo, SupportStatementContextFactory.MakeAgentInstanceViewFactoryContext())));
factoryTwo.FieldNameWeight = SupportExprNodeFactory.MakeIdentNodeMD("Volume");
Assert.IsTrue(_factory.CanReuse(new WeightedAverageView(factoryTwo, SupportStatementContextFactory.MakeAgentInstanceViewFactoryContext())));
}
public void SetUp()
{
// Set up sum view and a test child view
EventType type = WeightedAverageView.CreateEventType(SupportStatementContextFactory.MakeContext(), null, 1);
WeightedAverageViewFactory factory = new WeightedAverageViewFactory();
factory.FieldNameX = SupportExprNodeFactory.MakeIdentNodeMD("Price");
factory.EventType = type;
factory.FieldNameWeight = SupportExprNodeFactory.MakeIdentNodeMD("Volume");
_myView = new WeightedAverageView(factory, SupportStatementContextFactory.MakeAgentInstanceViewFactoryContext());
_childView = new SupportBeanClassView(typeof(SupportMarketDataBean));
_myView.AddView(_childView);
}
public void SetUp()
{
_factory = new WeightedAverageViewFactory();
}
public void SetUp()
{
_container = SupportContainer.Reset();
_factory = new WeightedAverageViewFactory();
}
