Changes for Net::Z3950 module, version 0.44

Changes between versions 0.43 and 0.44 (Thu May 6 14:19:56 2004):

Note that this release consists entirely of backwards-incompatible changes to new functionality introduced in 0.43, the previous release. If you use Scan, then all your Scan code must change; if you do not use Scan, then this release will not affect you at all.

• Change scan-option names to be ZOOM-compliant.
• Introduce a new enumeration, Net::Z3950::ScanStatus
• Add a new class, Net::Z3950::ScanSet, representing the results of a Scan operation. This is compliant with the ZOOM Abstract API, and supports much nicer client code than the previous release:

  $ss = $conn->scan('@attr 1=1003 kern');
  $status = $ss->status();
  print $ss->errmsg()
      if $status == Net::Z3950::ScanSet::Failure;
  $count = $ss->size();
  ($term, $hits) = $ss->term(0);
  	

  The scanResponse APDU, which used to be returned from the scan() method, is still available via the scanResponse() method, but there is no reason for new code to call this.

• Complete rewrite of the sample client scan.pl to use the new API.