Section 1019. Substitution of public officers

If a person made a party in
  his capacity as public officer dies or otherwise ceases to hold  office,
  the  action  may be continued by or against his successor if it is shown
  to the court  that  there  is  need  for  so  continuing  it.  Before  a
  substitution  is  made  his  successor  and,  unless the court otherwise
  orders, the party shall be given reasonable notice  of  the  motion  and
  accorded  an  opportunity  to  object.  When, in accordance with section
  1023, an officer is described by his official title and his name is  not
  added, no substitution is necessary.