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.\" ========================================================================
.\"
.IX Title "RDF::Closure::Engine 3pm"
.TH RDF::Closure::Engine 3pm "2021-09-24" "perl v5.32.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
RDF::Closure::Engine \- an engine for inferring triples
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.SS "Constructor"
.IX Subsection "Constructor"
.IP "\(bu" 4
\&\f(CW\*(C`new($regime, $model, @arguments)\*(C'\fR
.Sp
Instantiates an inference engine. This:
.Sp
.Vb 1
\&  RDF::Closure::Engine\->new(\*(AqRDFS\*(Aq, $model, @args);
.Ve
.Sp
is just a shortcut for:
.Sp
.Vb 1
\&  RDF::Closure::Engine::RDFS\->new($model, @args);
.Ve
.Sp
Though in the former, '\s-1RDFS\s0' is treated case-insensitively.
.Sp
\&\f(CW$model\fR must be an RDF::Trine::Model which the engine
will read its input from and write its output to.
.SS "Methods"
.IX Subsection "Methods"
.IP "\(bu" 4
\&\f(CW\*(C`entailment_regime\*(C'\fR
.Sp
Returns a \s-1URI\s0 string identifying the type of inference implemented by the engine,
or undef.
.IP "\(bu" 4
\&\f(CW\*(C`graph\*(C'\fR
.Sp
Returns the RDF::Trine::Model the engine is operating on.
.IP "\(bu" 4
\&\f(CW\*(C`closure( [ $is_subsequent ] )\*(C'\fR
.Sp
Adds any new triples to the graph that can be inferred.
.Sp
If \f(CW$is_subsequent\fR is true, then skips axioms.
.IP "\(bu" 4
\&\f(CW\*(C`errors\*(C'\fR
.Sp
Returns a list of consistency violations found so far.
.IP "\(bu" 4
\&\f(CW\*(C`reset\*(C'\fR
.Sp
Removes all inferred triples from the graph.
.SS "Class Method"
.IX Subsection "Class Method"
.IP "\(bu" 4
\&\f(CW\*(C`engines\*(C'\fR
.Sp
Return a list of engines installed, e.g. 'RDF::Closure::Engine::RDFS'.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
RDF::Closure,
RDF::Closure::Engine::RDFS,
RDF::Closure::Engine::OWL2RL,
RDF::Closure::Engine::OWL2Plus.
.PP
<http://www.perlrdf.org/>.
.SH "AUTHOR"
.IX Header "AUTHOR"
Toby Inkster <tobyink@cpan.org>.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2011\-2012 Toby Inkster
.PP
This library is free software; you can redistribute it and/or modify it
under any of the following licences:
.IP "\(bu" 4
The Artistic License 1.0 <http://www.perlfoundation.org/artistic_license_1_0>.
.IP "\(bu" 4
The \s-1GNU\s0 General Public License Version 1 <http://www.gnu.org/licenses/old\-licenses/gpl\-1.0.txt>,
or (at your option) any later version.
.IP "\(bu" 4
The W3C Software Notice and License <http://www.w3.org/Consortium/Legal/2002/copyright\-software\-20021231>.
.IP "\(bu" 4
The Clarified Artistic License <http://www.ncftp.com/ncftp/doc/LICENSE.txt>.
.SH "DISCLAIMER OF WARRANTIES"
.IX Header "DISCLAIMER OF WARRANTIES"
\&\s-1THIS PACKAGE IS PROVIDED \*(L"AS IS\*(R" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.\s0