public override void Activate(Context context, TimeInterval effectivePeriod, UserAction approvedAction)
{
this.LatestActivatedEntity = null;
var entities = this.GetActivatedEntitiesEffectiveDuring(context, effectivePeriod);
int count = entities.Count <PersistentTemporallyNonoverlappingEntity>();
if (count > 1)
{
throw new Exception("The effective periods of the entities are not in proper chronological order.");
}
if (count == 1)
{
var entity = entities.First();
if (this == entity)
{
throw new Exception("The effective periods of the new entity " + this.ToString() + " has already been defined.");
}
if (entity.EffectivePeriod.From > effectivePeriod.From)
{
throw new Exception("The effective date of the new entity " + this.ToString() + " is earlier than the latest activated entity.");
}
if (entity.EffectivePeriod.To > effectivePeriod.From)
{
this.LatestActivatedEntity = entity;
this.LatestActivatedEntity.Expire(effectivePeriod.From);
}
}
base.Activate(context, effectivePeriod, approvedAction);
}
public PersistentTemporallyNonoverlappingEntity(PersistentTemporallyNonoverlappingEntity original)
: base(original)
{
}
