NAME

Apache2::ClickPath::StoreClient - an Apache2::ClickPath::Store client

SYNOPSIS

use Apache2::ClickPath::StoreClient;

my $store=Apache2::ClickPath::StoreClient->new;
my $val=$store->get( 'val' );
unless( $store->set( val=>$v ) ) {
  my $code=$store->lasterror;
  ...
}

DESCRIPTION

Apache2::ClickPath::Store and Apache2::ClickPath::StoreClient can be used in conjunction with Apache2::ClickPath to store arbitrary information for a session. The information itself is stored on a WEB server and accessed via HTTP. Apache2::ClickPath::Store implements the server side and Apache2::ClickPath::StoreClient the client side.

For more information see the Apache2::ClickPath::Store manpage.

Apache2::ClickPath::StoreClient provides a OO interface to the data stored in an Apache2::ClickPath::Store. It uses the information exported by Apache2::ClickPath to find the correct store.

Apache2::ClickPath::StoreClient can be used from within a mod_perl handler or a CGI script.

If called from a mod_perl handler it requires the GlobalRequest to be set. See Apache2::RequestUtil for more information.

For communication with the store an LWP::UserAgent is used. It is configured to use keep-alive requests.

METHODS

Apache2::ClickPath::StoreClient->new

the constructor. It uses the environment variables SESSION and ClickPathMachineStore to initiate itself. These variables are exported from Apache2::ClickPath. The store address is given as the 3rd column of a ClickPathMachineTable. It can be either an absolute URL like http://server.com/store or a URI without the server part (/store). In the second case the store is assumed to be located on the same WEB server (in terms of Hostname or IP address, port and protocol (HTTP or HTTPS)).

$store->set( name => $value1, $value2, ... )

The set method is used to write a data item.

On success 1 is returned on failure undef. If there was an error the HTTP response code of the last store operation can be fetched using lasterror().

@list=$store->get( 'name' )

returns a previously stored data item. In scalar context the first data element is returned.

On error undef is returned. The reason can be examined via lasterror().

$code=$store->lasterror

returns the HTTP status code of the last store operation. See Apache2::ClickPath::Store for a list of possible codes.

$ua=$store->ua or $store->ua=$ua

provides access to the internal LWP::UserAgent. In case the store is behind a proxy this can be useful.

SEE ALSO

Apache2::ClickPath Apache2::ClickPath::Store LWP::UserAgent http://perl.apache.org, http://httpd.apache.org

AUTHOR

Torsten Foertsch, <torsten.foertsch@gmx.net>

COPYRIGHT AND LICENSE

Copyright (C) 2004-2005 by Torsten Foertsch

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.