private IReadOnlyList <CustomTypeAttributeValue> BuildAttributeCollection()
{
var attributeSource = GetType().GetFields(BindingFlags.Instance | BindingFlags.Public)
.Select(f =>
new
{
Field = f,
Attribute = f.GetCustomAttribute <OracleObjectMappingAttribute>()
})
.Where(fa => fa.Attribute != null)
.Select((fa, i) =>
new CustomTypeAttributeValue
{
ColumnHeader =
new ColumnHeader
{
ColumnIndex = i,
Name = fa.Attribute.AttributeName
},
Value = CustomTypeValueConverter.ConvertItem(fa.Field.GetValue(this), OracleLargeTextValue.DefaultPreviewLength)
})
.ToList()
.AsReadOnly();
return(_attributes = attributeSource);
}
private ColumnHeader BuildColumnHeader()
{
_columnHeader =
new ColumnHeader
{
DataType = ArrayItemType,
DatabaseDataType = CustomTypeValueConverter.ConvertDatabaseTypeNameToReaderTypeName(ElementTypeName),
Name = "COLUMN_VALUE",
};
return(_columnHeader);
}
private string BuildPreview()
{
if (IsNull)
{
return(String.Empty);
}
var items = Array.Take(PreviewMaxItemCount).Select(i => ToPrintable(CustomTypeValueConverter.ConvertItem(i, LargeValuePreviewLength)));
if (!String.IsNullOrEmpty(_enclosingCharacter))
{
items = items.Select(i => String.Format("{0}{1}{0}", _enclosingCharacter, i));
}
return($"{DataTypeName}({String.Join(", ", items)}{(Array.Length > PreviewMaxItemCount ? $", {CellValueConverter.Ellipsis} ({Array.Length} items)" : String.Empty)})");
}
