/// <summary>
/// Build the collectionColumnMap from a store datareader, a type and an entitySet.
/// </summary>
/// <param name="storeDataReader"></param>
/// <param name="edmType"></param>
/// <param name="entitySet"></param>
/// <returns></returns>
internal static CollectionColumnMap CreateColumnMapFromReaderAndType(DbDataReader storeDataReader, EdmType edmType, EntitySet entitySet, Dictionary <string, FunctionImportReturnTypeStructuralTypeColumnRenameMapping> renameList)
{
Debug.Assert(Helper.IsEntityType(edmType) || null == entitySet, "The specified non-null EntitySet is incompatible with the EDM type specified.");
// Next, build the ColumnMap directly from the edmType and entitySet provided.
ColumnMap[] propertyColumnMaps = GetColumnMapsForType(storeDataReader, edmType, renameList);
ColumnMap elementColumnMap = null;
// NOTE: We don't have a null sentinel here, because the stored proc won't
// return one anyway; we'll just presume the data's always there.
if (Helper.IsRowType(edmType))
{
elementColumnMap = new RecordColumnMap(TypeUsage.Create(edmType), edmType.Name, propertyColumnMaps, null);
}
else if (Helper.IsComplexType(edmType))
{
elementColumnMap = new ComplexTypeColumnMap(TypeUsage.Create(edmType), edmType.Name, propertyColumnMaps, null);
}
else if (Helper.IsScalarType(edmType))
{
if (storeDataReader.FieldCount != 1)
{
throw EntityUtil.CommandExecutionDataReaderFieldCountForScalarType();
}
elementColumnMap = new ScalarColumnMap(TypeUsage.Create(edmType), edmType.Name, 0, 0);
}
else if (Helper.IsEntityType(edmType))
{
elementColumnMap = CreateEntityTypeElementColumnMap(storeDataReader, edmType, entitySet, propertyColumnMaps, null /*renameList*/);
}
else
{
Debug.Assert(false, "unexpected edmType?");
}
CollectionColumnMap collection = new SimpleCollectionColumnMap(edmType.GetCollectionType().TypeUsage, edmType.Name, elementColumnMap, null, null);
return(collection);
}