I've a question about long tables in Latex. How is it possible to automatically break text content inside a long table cell.

I read lot of articles and examples and tried it (e.g. longtable) But I still can not believe that there should be no solution for this. Currently I am using the Apache FOP processor to generate PDF documents via XSLT. Here, the tables are wrapped within a cell. Apache FOP example
Have someone the same problem and have a solution? Thank you, Frank