public static IHasExpirable InWindow(this IHasExpirable thing, DateTime startDate, DateTime endDate)
{
Condition.Requires(thing).IsNotNull();
thing.Expirable = thing.Expirable.DecorateWithWindowExpirable(startDate, endDate);
return(thing);
}
public static IHasExpirable ExpiresWhen(this IHasExpirable thing, ICondition condition)
{
Condition.Requires(thing).IsNotNull();
thing.Expirable = thing.Expirable.DecorateWithConditionalExpirable(condition);
return(thing);
}
public static IHasExpirable Touch(this IHasExpirable thing)
{
Condition.Requires(thing).IsNotNull();
if (thing.Expirable is ITouchable)
{
((ITouchable)thing.Expirable).Touch();
}
return(thing);
}
public static IHasExpirable ExpiryFloats(this IHasExpirable thing, int touchIncrementSecs)
{
Condition.Requires(thing).IsNotNull();
if (!(thing.Expirable is DateExpirableDecoration))
{
throw new InvalidOperationException("expirable must be DateExpirableDecoration");
}
var dateExpire = thing.Expirable as DateExpirableDecoration;
thing.Expirable = dateExpire.DecorateWithFloatingDateExpirable(touchIncrementSecs);
return(thing);
}
