/usr/share/perl5/AtteanX/Store/SimpleTripleStore.pm is in libattean-perl 0.017-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | =head1 NAME
AtteanX::Store::SimpleTripleStore - SimpleTripleStore, unindexed, in-memory RDF store
=head1 VERSION
This document describes AtteanX::Store::SimpleTripleStore version 0.017
=head1 SYNOPSIS
use AtteanX::Store::SimpleTripleStore;
=head1 DESCRIPTION
AtteanX::Store::SimpleTripleStore provides an in-memory triple-store.
=cut
use v5.14;
use warnings;
package AtteanX::Store::SimpleTripleStore 0.017 {
use Moo;
use Type::Tiny::Role;
use Types::Standard qw(Int ArrayRef HashRef ConsumerOf InstanceOf);
use Encode;
use Set::Scalar;
use Digest::SHA;
use List::Util qw(first);
use Scalar::Util qw(refaddr reftype blessed);
use namespace::clean;
with 'Attean::API::MutableTripleStore';
my @pos_names = Attean::API::Quad->variables;
=head1 METHODS
Beyond the methods documented below, this class inherits methods from the
L<Attean::API::QuadStore> class.
=over 4
=item C<< new ( triples => \@triples ) >>
Returns a new memory-backed storage object.
=cut
has triples => (is => 'rw', isa => ArrayRef[ConsumerOf['Attean::API::Triple']], default => sub { [] });
=item C<< get_triples ( $subject, $predicate, $object ) >>
Returns a stream object of all statements matching the specified subject,
predicate and objects. Any of the arguments may be undef to match any value.
=cut
sub get_triples {
my $self = shift;
my @nodes = @_;
my %bound;
foreach my $pos (0 .. 2) {
my $n = $nodes[ $pos ];
if (blessed($n) and $n->does('Attean::API::Variable')) {
$n = undef;
$nodes[$pos] = undef;
}
if (blessed($n)) {
$bound{ $pos_names[$pos] } = $n;
}
}
my $triples = $self->triples;
my $iter = Attean::ListIterator->new( values => $triples, item_type => 'Attean::API::Triple' );
return $iter->grep(sub {
my $q = shift;
foreach my $key (keys %bound) {
my $term = $q->$key();
unless ($term->equals( $bound{$key} )) {
return 0;
}
}
return 1;
});
return $iter;
}
=item C<< add_triple( $t ) >>
=cut
sub add_triple {
my $self = shift;
my $t = shift;
push(@{ $self->triples }, $t);
}
=item C<< remove_triple( $t ) >>
=cut
sub remove_triple {
my $self = shift;
my $t = shift;
my @remove;
my $triples = $self->triples;
foreach my $i (0 .. $#{ $triples }) {
my $u = $triples->[$i];
if ($u->as_string eq $t->as_string) {
push(@remove, $i);
}
}
while (scalar(@remove)) {
my $i = pop(@remove);
splice(@$triples, $i, 1, ());
}
}
}
1;
__END__
=back
=head1 BUGS
Please report any bugs or feature requests to through the GitHub web interface
at L<https://github.com/kasei/perlrdf2/issues>.
=head1 AUTHOR
Gregory Todd Williams C<< <gwilliams@cpan.org> >>
=head1 COPYRIGHT
Copyright (c) 2014--2016 Gregory Todd Williams. This
program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
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