public int GetFieldIndex([NotNull] string fieldName, [CanBeNull] AttributeRole role)
{
int fieldIndex;
if (!_fieldIndexes.TryGetValue(fieldName, out fieldIndex))
{
fieldIndex = AttributeUtils.GetFieldIndex(_table, fieldName, role);
_fieldIndexes.Add(fieldName, fieldIndex);
}
return(fieldIndex);
}
private int?GetFieldIndex([NotNull] AttributeRole role,
[CanBeNull] IFieldIndexCache fieldIndexCache,
bool roleIsOptional)
{
ObjectAttribute attribute = _dataset.GetAttribute(role);
if (attribute == null)
{
if (roleIsOptional)
{
return(null);
}
throw new ArgumentException(
string.Format("Dataset [{0}] has no attribute role [{1}]",
_dataset.Name, role), nameof(role));
}
return(AttributeUtils.GetFieldIndex(_object.Class, attribute, fieldIndexCache));
}