code: public Backup backup( Database dest, String destName, String srcName ) throws jsqlite.Exception {
          synchronized (this) {
              Backup b = new Backup();
              _backup(b, dest, destName, this, srcName);
              return b;
          }
      }
docs: Initiate a database backup, SQLite 3.x only.
  
  @param dest destination database
  @param destName schema of destination database to be backed up
  @param srcName schema of source database
  @return Backup object to perform the backup operation