Access the index of the last record in the current view page. Record indexes start at 1,
and the maximum legal value equals the size() of the full search results list or start
index of the next page minus 1, which is start index of the current page plus the size of
the current page minus 1.
This method gives access to a list of citations representing the first page of output based
on a predefined "page size". In zero-based page numbering, this method returns page zero.
This method gives access to a list of citations representing a page of output based on a
predefined "page size". The page number is zero-based. This method can return any page
that has already been accessed or the "next" page, a page that can be generated by retrieving
no more than pageSize additional citations.
Parameters: page - The zero-based index of the desired page. throws: SearchException - if the requested page is beyond the next page (i.e. it can't be supplied without doing more than one additional search of size pageSize.