1RDF::Trine::Store::HexaUssteorreC(o3n)tributed Perl DocuRmDeFn:t:aTtriionne::Store::Hexastore(3)
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6 RDF::Trine::Store::Hexastore - RDF store implemented with the hexastore
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10 This document describes RDF::Trine::Store::Hexastore version 1.019
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13 use RDF::Trine::Store::Hexastore;
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16 RDF::Trine::Store::Hexastore provides an in-memory triple-store based
17 on six-way indexing as popularized by Hexastore.
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20 Beyond the methods documented below, this class inherits methods from
21 the RDF::Trine::Store class.
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23 "new ()"
24 Returns a new storage object.
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26 "new_with_config ( $hashref )"
27 Returns a new storage object configured with a hashref with certain
28 keys as arguments.
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30 The "storetype" key must be "Hexastore" for this backend.
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32 This module also supports initializing the store from a file or
33 URL, in which case, a "sources" key may be used. This holds an
34 arrayref of hashrefs. To load a file, you may give the file name
35 with a "file" key in the hashref, and to load a URL, use "url". See
36 example below. Furthermore, the following keys may be used:
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38 "syntax"
39 The syntax of the parsed file or URL.
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41 "base_uri"
42 The base URI to be used for a parsed file.
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44 The following example initializes a Hexastore store based on a
45 local file and a remote URL:
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47 my $store = RDF::Trine::Store->new_with_config( {
48 storetype => 'Hexastore',
49 sources => [
50 {
51 file => 'test-23.ttl',
52 syntax => 'turtle',
53 },
54 {
55 url => 'http://www.kjetil.kjernsmo.net/foaf',
56 syntax => 'rdfxml',
57 }
58 ]});
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60 "store ( $filename )"
61 Write the triples data to a file specified by $filename. This data
62 may be read back in with the "load" method.
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64 "load ( $filename )"
65 Returns a new Hexastore object with triples data from the specified
66 file.
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68 "temporary_store"
69 Returns a temporary (empty) triple store.
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71 "get_statements ($subject, $predicate, $object [, $context] )"
72 Returns a stream object of all statements matching the specified
73 subject, predicate and objects. Any of the arguments may be undef
74 to match any value.
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76 "get_pattern ( $bgp [, $context] )"
77 Returns a stream object of all bindings matching the specified
78 graph pattern.
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80 "supports ( [ $feature ] )"
81 If $feature is specified, returns true if the feature is supported
82 by the store, false otherwise. If $feature is not specified,
83 returns a list of supported features.
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85 "get_contexts"
86 "add_statement ( $statement [, $context] )"
87 Adds the specified $statement to the underlying model.
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89 "remove_statement ( $statement [, $context])"
90 Removes the specified $statement from the underlying model.
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92 "remove_statements ( $subject, $predicate, $object [, $context])"
93 Removes the specified $statement from the underlying model.
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95 "etag"
96 Returns an Etag suitable for use in an HTTP Header.
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98 "nuke"
99 Permanently removes all the data in the store.
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101 "count_statements ($subject, $predicate, $object)"
102 Returns a count of all the statements matching the specified
103 subject, predicate and objects. Any of the arguments may be undef
104 to match any value.
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107 Please report any bugs or feature requests to through the GitHub web
108 interface at <https://github.com/kasei/perlrdf/issues>.
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111 Gregory Todd Williams "<gwilliams@cpan.org>"
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114 Copyright (c) 2006-2012 Gregory Todd Williams. This program is free
115 software; you can redistribute it and/or modify it under the same terms
116 as Perl itself.
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120perl v5.28.1 2018-01-05 RDF::Trine::Store::Hexastore(3)