public virtual void RemoveAttribute(ClassAttributeInfo
                                     cai)
 {
     attributes.Remove(cai);
     attributesByName.Remove(cai.GetName());
 }
 /// <summary>Removes an index</summary>
 /// <param name="cii"></param>
 public virtual void RemoveIndex(ClassInfoIndex
                                 cii)
 {
     indexes.Remove(cii);
 }