private void PhaseThree(DataStoreMapping mapping, List <object> objects, SelectStatementResult result)
{
for (int i = 0; i < objects.Count; i++)
{
mapping.Load(objects[i], result.Rows[i].Values, objectMap);
}
}
private List <object> PhaseTwo(DataStoreMapping mapping, Type objectType, SelectStatementResult result, List <PreResult> toLoad)
{
List <object> objects = new List <object>();
int keyColumnIndex = mapping.Table.Columns.IndexOf(GetKeyColumn(mapping));
List <DataStoreMapping.Column> refColumns = mapping.RefColumns.ToList();
foreach (var row in result.Rows)
{
var key = row.Values[keyColumnIndex];
if (key == null)
{
throw new DataException("Key cannot be null.");
}
var obj = objectMap.Get(objectType, key);
if (obj == null)
{
obj = mapping.Create();
objectMap.Add(objectType, key, obj);
}
objects.Add(obj);
foreach (var member in refColumns)
{
var alias = "T";
var dbCriteria = BuildByKeyCriteria(member.Type, row.Values[member.Index], alias);
var memberMapping = mappings[member.Type];
toLoad.Add(new PreResult()
{
Mapping = memberMapping,
ObjectType = member.Type,
Statement = PhaseOne(memberMapping, member.Type, dbCriteria, alias)
});
}
}
return(objects);
}
public SelectedData SelectData(params SelectStatement[] selects)
{
var isExternals = selects.Select(stmt => IsTempDatabaseTable(stmt.Table.Name)).ToList();
List <SelectStatement> mainSelects = new List <SelectStatement>(selects.Length);
List <SelectStatement> externalSelects = new List <SelectStatement>(selects.Length);
for (int i = 0; i < isExternals.Count; ++i)
{
(isExternals[i] ? externalSelects : mainSelects).Add(selects[i]);
}
var externalResults = (externalSelects.Count == 0 ? Enumerable.Empty <SelectStatementResult>() : tempDataLayer.SelectData(externalSelects.ToArray()).ResultSet).GetEnumerator();
var mainResults = (mainSelects.Count == 0 ? Enumerable.Empty <SelectStatementResult>() : legacyDataLayer.SelectData(mainSelects.ToArray()).ResultSet).GetEnumerator();
SelectStatementResult[] results = new SelectStatementResult[isExternals.Count];
for (int i = 0; i < results.Length; ++i)
{
var enumerator = isExternals[i] ? externalResults : mainResults;
enumerator.MoveNext();
results[i] = enumerator.Current;
}
return(new SelectedData(results));
}
