NAME

CogBase - A CogBase Implementation in Perl

WARNING

This Database implementation is in its infancy. Just barely a proof of concept so far. It would be ridiculous of you to use it for anything serious, yet.

SYNOPSIS

use CogBase;

my $conn = CogBase->connect('http://cog.example.com');

        my $schema = $conn->node('Schema');
        $schema->value(<<'...');
        +: person
        <: Node
        age: Number
        given_name: String
        family_name: String
        ...
        $conn->store($schema);

        my $person = $conn->node('person');

        $person->given_name('Ingy');
        $person->family_name('dot Net');
        $person->age(42);

        $conn->store($person);

        my @results = $conn->query('!person');
        my @nodes = $conn->fetch(@results);

        for my $node (@nodes) {
            print "%s %s is %d years old\n",
                $node->given_name,
                $node->family_name,
                $node->age;
        }

        $conn->disconnect;

DESCRIPTION

CogBase is a Object Database Management System.

Some interesting characteristics of its design are:

• All objects are stored as nodes.
• Every node has a universally unique id.
• Every node has a type.
• Every type has a schema.
• Every schema, is itself, a node in the db.
• Every schema has a base/super schema that it inherits from.
• Schemas can be used to generate programming language (Perl) classes for every type (schema) of node.
• CogBase defines several core scalar types.
• CogBase defines one core schema (that every schema inherits from).
• Every node has one or more revisions.
• Every revision is immutable.
• Database access methods are connect, create, store, fetch, query and disconnect.
• All nodes have access control based on the Unix File System.
• HTTP is used for the network layer. GET and POST are used for all operations.
• Database can be used over network or embedded.
• Access control is based on Unix File System

AUTHOR

Ingy döt Net, "<ingy at cpan.org>"

BUGS

Please report any bugs or feature requests to "bug-cogbase at rt.cpan.org", or through the web interface at <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=CogBase>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc CogBase

You can also look for information at:

• AnnoCPAN: Annotated CPAN documentation <http://annocpan.org/dist/CogBase>
• CPAN Ratings <http://cpanratings.perl.org/d/CogBase>
• RT: CPAN's request tracker <http://rt.cpan.org/NoAuth/Bugs.html?Dist=CogBase>
• Search CPAN <http://search.cpan.org/dist/CogBase>

ACKNOWLEDGEMENTS

Unix, HTTP

COPYRIGHT & LICENSE

Copyright 2006 Ingy döt Net, all rights reserved.

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