public static void ExpireOverlappingInstances(ICategorizedTemporalList <T> list, T newInstance)
{
DateTime effectiveDate = newInstance.EffectivePeriod.EffectiveDate;
TreeListNode newCat = ((ICategorizedTemporal)newInstance).Category;
//Validate
foreach (T i in list)
{
if (i.EffectivePeriod.EffectiveDate > effectiveDate &&
((ICategorizedTemporal)i).Category == newCat)
{
throw new iSabayaException("The effective date of the added instance is less than existing effective date");
}
}
//Expire the current one
foreach (T i in list)
{
ICategorizedTemporal item = (ICategorizedTemporal)i;
if (item.EffectivePeriod.IsEffectiveOn(effectiveDate) && item.Category == newCat)
{
item.EffectivePeriod.ExpiryDate = effectiveDate;
}
}
}
public static T GetInstance(ICategorizedTemporalList <T> list, DateTime when, TreeListNode category)
{
foreach (T i in list)
{
ICategorizedTemporal item = (ICategorizedTemporal)i;
if (item.EffectivePeriod.IsEffectiveOn(when) && item.Category == category)
{
return(i);
}
}
return(default(T));
}
public static IList <T> GetInstances(ICategorizedTemporalList <T> list, DateTime when, TreeListNode parentCategory)
{
CategorizedTemporalList <T> matches = new CategorizedTemporalList <T>();
foreach (T i in list)
{
ICategorizedTemporal item = (ICategorizedTemporal)i;
if (item.EffectivePeriod.IsEffectiveOn(when) && item.Category.Parent == parentCategory)
{
matches.Add(i);
}
}
return(matches);
}
public static bool ContainsCategoryParent(ICategorizedTemporalList <T> list, DateTime when, TreeListNode parentCategory)
{
bool exist = false;
foreach (T i in list)
{
ICategorizedTemporal item = (ICategorizedTemporal)i;
if (item.EffectivePeriod.IsEffectiveOn(when) && item.Category.Parent == parentCategory)
{
exist = true;
break;
}
}
return(exist);
}
