public void RaiseInvalidate(QuerySetStorageKey key)
{
this.Invalidate(
this,
new QuerySetStorageInvalidateEventArgs(key)
);
}
public void Set(QuerySetStorageKey key, IModel o)
{
if (cache.Count >= MAX_ENTRIES)
{
foreach (QuerySetStorageKey k in cache.Keys)
{
cache.Remove(k);
this.RaiseInvalidate(k);
break;
}
}
cache[key] = o;
this.RaiseInvalidate(key);
}
public IModel Get(QuerySetStorageKey key)
{
return cache[key];
}
public void Delete(QuerySetStorageKey key)
{
cache.Remove(key);
}
public bool Equals(QuerySetStorageKey other)
{
return this.GetHashCode() == other.GetHashCode();
}
public QuerySetStorageInvalidateEventArgs(QuerySetStorageKey key)
{
this.Key = key;
}
public IEnumerator<IModel> GetEnumerator()
{
Connections.IConnection conn = new Connections.Connection();
object[][] res = conn.Execute(this.query);
IModel o;
Dictionary<string, object> dict;
QuerySetStorageKey storage_key;
foreach (object[] row in res)
{
// need to instantiate a model here, to get the ModelMeta
o = (IModel)(Activator.CreateInstance(this.query.Model));
storage_key = new QuerySetStorageKey(
this.query.Model,
row[o.Meta.GetFieldIndex(o.Meta.PrimaryKey.DbField)]
);
try
{
o = storage.Get(storage_key);
}
catch (KeyNotFoundException)
{
dict = o.Meta.PrepareRowForInstance(row);
foreach (string key in dict.Keys)
{
o.Set(key, dict[key]);
}
this.storage.Set(storage_key, o);
}
yield return o;
}
}
