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EKAWAS / OWL2Perl-1.00 / lib / OWL / Data / Def / OWLClass.pm 

            

              
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#-----------------------------------------------------------------
# OWL::Data::Def::OWLClass
# Author: Edward Kawas <edward.kawas@gmail.com>,
# For copyright and disclaimer see below.
#
# $Id: OWLClass.pm,v 1.22 2010-01-07 21:48:08 ubuntu Exp $
#-----------------------------------------------------------------
package OWL::Data::Def::OWLClass;
use base qw( OWL::Base );
use strict;
# add versioning to this module
use vars qw /$VERSION/;
$VERSION = sprintf "%d.%02d", q$Revision: 1.24 $ =~ /: (\d+)\.(\d+)/;
=head1 NAME
OWL::Data::Def::OWLClass - definition of an owl class
=head1 SYNOPSIS
 use OWL::Data::Def::OWLClass;
 # create a new data type
 my $class = new OWL::Data::Def::OWLClass
    ( name        => 'MySequenceClass',
      type        => 'http://some.domain.com/classes#MySequenceClass',
      parent      => 'http://some.domain.com/classes#MySequenceClassParent',
    );
 # get the name of this owl class
 print $class->name;
=cut
=head1 DESCRIPTION
A container representing an OWL class definition
=head1 AUTHORS
 Edward Kawas (edward.kawas [at] gmail [dot] com)
=cut
#-----------------------------------------------------------------
# A list of allowed attribute names. See OWL::Base for details.
#-----------------------------------------------------------------
=head1 ACCESSIBLE ATTRIBUTES
Details are in L<OWL::Base>. Here just a list of them:
=over
=item B<name>
A name of this owl class
=item B<parent>
A parent for this owl class ... defaults to OWL::Data::OWL::Class
=item B<type>
The type of this owl class
=back
=cut
{
        my %_allowed = (
                name => {
                        # name set when you set the type!
                        type => OWL::Base->STRING,
                },
                parent => {
                        type => OWL::Base->STRING,
                        post => sub {
                                my ($self) = shift;
                                my $name = @{$self->parent}[-1];
                                return unless defined $name;
#                               $name = 'OWL::Data::OWL::Class' unless defined $name;
                                if ($name eq 'OWL::Data::OWL::Class') {
                                        # add to parents array
                    $self->add_module_parent($name);
                                } else {
                                    # add to parents array
                                    $self->add_module_parent($self->owlClass2module( $self->uri2package($name) ));
                                }
                        },
                        is_array => 1,
                },
                type => {
                        type => OWL::Base->STRING,
                        post => sub {
                                my ($self) = shift;
                                my $package = $self->uri2package($self->type);
                                $self->{module_name} = $self->owlClass2module($package);
                                # extract our name and set it
                                my $name = $1 if $package =~ m|\:\:(\w+)$|gi;
                                $name = $package unless $name; 
                                $self->name($name);
                                # bnodes are typed differently than URI nodes
                                $self->{type} = "" if $package =~ m/^genid/ig;
                          }
                },
                # HashOfHash: property_name => {keys: object, range, name, module}
                has_value_property => {type => 'HASH', is_array => 1 },
                object_properties =>
                  { type => 'OWL::Data::Def::ObjectProperty', is_array => 1 },
                datatype_properties =>
                  { type => 'OWL::Data::Def::DatatypeProperty', is_array => 1 },
# used internally  (but cannot start with underscore - Template would ignore them)
        # the full package name for this class
                module_name   => undef,
                # the full package names for parents
                module_parent => { type => OWL::Base->STRING, is_array => 1 },
                # HashOfHash: property_name => {keys: name, max, min}
        cardinality_constraints => {type => 'HASH', is_array => 0 },
        # hash: key: onProperty, value: hash of restrictionURI strings as module names as keys with the value of 1
        values_from_property => {type => 'HASH' },
        );
        sub _accessible {
                my ( $self, $attr ) = @_;
                exists $_allowed{$attr} or $self->SUPER::_accessible($attr);
        }
        sub _attr_prop {
                my ( $self, $attr_name, $prop_name ) = @_;
                my $attr = $_allowed{$attr_name};
                return ref($attr) ? $attr->{$prop_name} : $attr if $attr;
                return $self->SUPER::_attr_prop( $attr_name, $prop_name );
        }
}
#-----------------------------------------------------------------
=head1 SUBROUTINES
=cut
#-----------------------------------------------------------------
# init
#-----------------------------------------------------------------
sub init {
        my ($self) = shift;
        $self->SUPER::init();
        $self->add_parent('OWL::Data::OWL::Class');
        # initialize empty hash for cardinality_constraints
        $self->cardinality_constraints(\());
        $self->values_from_property(\());
}
1;
__END__