public void Activate(ActivationContext <T> context)
{
_propertyAction(context.Fact, propertyValue =>
{
TValue value;
if (_propertySelector.TryGetValue(propertyValue, out value))
{
ActivationContext <Token <T, TValue> > propertyContext =
context.CreateContext(new Token <T, TValue>(context, value));
base.Activate(propertyContext);
}
});
}