public ProductType Create(IdType id)
{
if (factoryCreators.ContainsKey(id))
{
IAbstractCreator creator = factoryCreators[id];
return((ProductType)creator.Create());
}
return(default(ProductType));
}
public void Register(IdType id, IAbstractCreator creator)
{
if (creator != null)
{
factoryCreators[id] = creator;
if (Registered != null)
{
Registered(id);
}
}
}
public void Unregister(IAbstractCreator creator)
{
int index = factoryCreators.IndexOfValue(creator);
if (index != -1)
{
factoryCreators.RemoveAt(index);
if (Unregistered != null)
{
IdType id = factoryCreators.Keys[index];
Unregistered(id);
}
}
}