NAME
Apache::XPointer::RDQL - mod_perl handler for addressing XML fragments
using the RDF Data Query Language.
SYNOPSIS
SetHandler perl-script
PerlHandler Apache::XPointer::RDQL::RDFStore
PerlSetVar XPointerSendRangeAs "application/rdf+xml"
#
my $ua = LWP::UserAgent->new();
my $req = HTTP::Request->new(GET => "http://example.com/foo/bar/baz.rdf");
$req->header("Range" => qq(SELECT ?title, ?link
WHERE
(?item, , ),
(?item, , ?title),
(?item, , ?link)
USING
rdf for ,
rss for ));
$req->header("Accept" => qq(mulitpart/mixed));
my $res = $ua->request($req);
DESCRIPTION
Apache::XPointer::RDQL::RDFStore is a mod_perl handler to address XML
fragments using the HTTP 1.1 *Range* and *Accept* headers and the XPath
scheme, as described in the paper : *A Semantic Web Resource Protocol:
XPointer and HTTP*.
Additionally, the handler may also be configured to recognize a
conventional CGI parameter as a valid range identifier.
If no 'range' property is found, then the original document is sent
unaltered.
If an *Accept* header is specified with no corresponding match, then the
server will return (406) HTTP_NOT_ACCEPTABLE.
Successful queries will return (206) HTTP_PARTIAL_CONTENT.
IMPORTANT
This package is a base class and not expected to be invoked directly.
Please use one of the RDQL parser-specific handlers instead.
SUPPORTED PARSERS
RDFStore
Consult Apache::XPointer::RDQL::RDFStore
MOD_PERL COMPATIBILITY
This handler will work with both mod_perl 1.x and mod_perl 2.x.
VERSION
1.1
DATE
$Date: 2004/11/16 04:33:33 $
AUTHOR
Aaron Straup Cope
SEE ALSO
Apache::XPointer
http://www.w3.org/Submission/RDQL/
LICENSE
Copyright (c) 2004 Aaron Straup Cope. All rights reserved.
This is free software, you may use it and distribute it under the same
terms as Perl itself.