1RDF::Trine::Statement(3U)ser Contributed Perl DocumentatiRoDnF::Trine::Statement(3)
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6 RDF::Trine::Statement - Class for triples and triple patterns
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9 This document describes RDF::Trine::Statement version 1.019
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12 "new ( $s, $p, $o )"
13 Returns a new Triple structure.
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15 "construct_args"
16 Returns a list of arguments that, passed to this class'
17 constructor, will produce a clone of this algebra pattern.
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19 "nodes"
20 Returns the subject, predicate and object of the triple pattern.
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22 "node_names"
23 Returns the method names for accessing the nodes of this statement.
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25 "subject"
26 Returns the subject node of the triple pattern.
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28 "predicate"
29 Returns the predicate node of the triple pattern.
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31 "object"
32 Returns the object node of the triple pattern.
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34 "as_string"
35 Returns the statement in a string form.
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37 "has_blanks"
38 Returns true if any of the nodes in this statement are blank nodes.
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40 "sse"
41 Returns the SSE string for this algebra expression.
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43 "from_sse ( $string, $context )"
44 Parses the supplied SSE-encoded string and returns a
45 RDF::Trine::Statement object.
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47 "type"
48 Returns the type of this algebra expression.
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50 "referenced_variables"
51 Returns a list of the variable names used in this algebra
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54 "definite_variables"
55 Returns a list of the variable names that will be bound after
56 evaluating this algebra expression.
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58 "clone"
59 "bind_variables ( \%bound )"
60 Returns a new algebra pattern with variables named in %bound
61 replaced by their corresponding bound values.
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63 "subsumes ( $statement )"
64 Returns true if this statement will subsume the $statement when
65 matched against a triple store.
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67 "from_redland ( $statement )"
68 Given a RDF::Redland::Statement object, returns a perl-native
69 RDF::Trine::Statement object.
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71 "rdf_compatible"
72 Returns true if and only if the statement can be expressed in RDF.
73 That is, the subject of the statement must be a resource or blank
74 node; the predicate must be a resource; and the object must be a
75 resource, blank node or literal.
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77 RDF::Trine::Statement does allow statements to be created which
78 cannot be expressed in RDF - for instance, statements including
79 variables.
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82 Please report any bugs or feature requests to through the GitHub web
83 interface at <https://github.com/kasei/perlrdf/issues>.
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86 Gregory Todd Williams "<gwilliams@cpan.org>"
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89 Copyright (c) 2006-2012 Gregory Todd Williams. This program is free
90 software; you can redistribute it and/or modify it under the same terms
91 as Perl itself.
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95perl v5.32.0 2020-07-28 RDF::Trine::Statement(3)