pg_dump from Java or SQL?

Is it possible to access backup and restore functionality from SQL or Java?  I am attempting to allow some this functionality from a webapp.

The best I have so far is the following Java code.

  Runtime runtime = Runtime.getRuntime();

  String[] cmd = { "cmd",

                             "/c",

                             "C:/PostgreSQL/8.0/pgAdmin_III/pg_dump.exe -i -h localhost -p 5432 -U postgres -F c -b -v -f C:/"

                             +(new Date()).getTime()

                             +".backup mydatabase" };

  Process p = runtime.exec(cmd);

Thank you for your time,

Jason Long

CEO and Chief Software Engineer

BS Physics, MS Chemical Engineering

http://www.supernovasoftware.com