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.\" ========================================================================
.\"
.IX Title "RDF::Closure::Model 3pm"
.TH RDF::Closure::Model 3pm "2012-06-28" "perl v5.20.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.SH "NAME"
RDF::Closure::Model \- RDF::Trine::Model\-compatible inferface
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module provides a subclass of RDF::Trine::Model allowing you to
dollop some reasoning into existing RDF::Trine code very easily. While
RDF::Closure::Engine allows you to infer lots of new statements from an
existing model, this class also allows you to add and remove statements from
the reasoned model with new inferences calculated on-the-fly.
.PP
Removing a statement is much slower than adding one, though adding a
statement isn't what you'd call fast. Juditious use of \f(CW\*(C`begin_bulk_ops\*(C'\fR and
\&\f(CW\*(C`end_bulk_ops\*(C'\fR is recomnmended.
.PP
If a lot of statements have been added and removed from a model since it
was created, then it's theoretically possible for the inferred data to contain
statements which are no longer entailed by the explicit data, or for the
inferred data to be missing some inferences. A \f(CW\*(C`recalculate\*(C'\fR method
is provided which allows you to re-run the inference from scratch.
.SS "Constructor"
.IX Subsection "Constructor"
.IP "\(bu" 4
\&\f(CW\*(C`new($input, [, engine => $engine ] [, store => $store ])\*(C'\fR
.Sp
Instantiates a module. \f(CW$input\fR may be undef, an existing RDF::Trine::Model
or an RDF::Trine::Store. The input will not be modified.
.Sp
\&\f(CW$engine\fR is the inference engine to use; a string suitable for passing to
\&\f(CW\*(C`RDF::Closure::Engine\->new\*(C'\fR; defaults to '\s-1RDFS\s0'.
.Sp
\&\f(CW$store\fR is an RDF::Trine::Store to use to build the inferred model in;
defaults to a new, temporary store.
.SS "Methods"
.IX Subsection "Methods"
This package inherits from RDF::Trine::Model and provides all the
methods it does. It additionally provides:
.IP "\(bu" 4
\&\f(CW\*(C`entailment_regime\*(C'\fR
.Sp
Returns a \s-1URI\s0 string identifying the type of inference in use.
.IP "\(bu" 4
\&\f(CW\*(C`recalculate\*(C'\fR
.Sp
Drops and re-infers all inferred data.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
RDF::Closure,
RDF::Closure::Engine,
RDF::Trine::Model.
.PP
Take careful note of the \f(CW\*(C`begin_bulk_ops\*(C'\fR and \f(CW\*(C`end_bulk_ops\*(C'\fR methods
present in RDF::Trine::Model. Judicious use of them can seriously speed up
this module.
.PP
.
.SH "AUTHOR"
.IX Header "AUTHOR"
Toby Inkster .
.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 .
.IP "\(bu" 4
The \s-1GNU\s0 General Public License Version 1 ,
or (at your option) any later version.
.IP "\(bu" 4
The W3C Software Notice and License .
.IP "\(bu" 4
The Clarified Artistic License .
.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