1RDF::Trine::Store::MemoUrsye(r3)Contributed Perl DocumenRtDaFt:i:oTnrine::Store::Memory(3)
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NAME

6       RDF::Trine::Store::Memory - Simple in-memory RDF store
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VERSION

9       This document describes RDF::Trine::Store::Memory version 1.019
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SYNOPSIS

12        use RDF::Trine::Store::Memory;
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DESCRIPTION

15       RDF::Trine::Store::Memory provides an in-memory triple-store.
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METHODS

18       Beyond the methods documented below, this class inherits methods from
19       the RDF::Trine::Store class.
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21       "new ()"
22           Returns a new memory-backed storage object.
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24       "new_with_config ( $hashref )"
25           Returns a new storage object configured with a hashref with certain
26           keys as arguments.
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28           The "storetype" key must be "Memory" for this backend.
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30           This module also supports initializing the store from a file or
31           URL, in which case, a "sources" key may be used. This holds an
32           arrayref of hashrefs.  To load a file, you may give the file name
33           with a "file" key in the hashref, and to load a URL, use "url". See
34           example below. Furthermore, the following keys may be used:
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36           "syntax"
37               The syntax of the parsed file or URL.
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39           "base_uri"
40               The base URI to be used for a parsed file.
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42           "graph" NOT IMPLEMENTED
43               Use this URI as a graph name for the contents of the file or
44               URL.
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46           The following example initializes a Memory store based on a local
47           file and a remote URL:
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49             my $store = RDF::Trine::Store->new_with_config(
50                           {
51                             storetype => 'Memory',
52                             sources => [
53                               {
54                                 file => 'test-23.ttl',
55                                 syntax => 'turtle',
56                               },
57                               {
58                                 url => 'http://www.kjetil.kjernsmo.net/foaf',
59                                 syntax => 'rdfxml',
60                                 graph => 'http://example.org/graph/remote-users'
61                               }
62                             ]
63                           });
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65       "temporary_store"
66           Returns a temporary (empty) triple store.
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68       "get_statements ( $subject, $predicate, $object [, $context] )"
69           Returns a stream object of all statements matching the specified
70           subject, predicate and objects. Any of the arguments may be undef
71           to match any value.
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73       "get_contexts"
74           Returns an RDF::Trine::Iterator over the RDF::Trine::Node objects
75           comprising the set of contexts of the stored quads.
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77       "add_statement ( $statement [, $context] )"
78           Adds the specified $statement to the underlying model.
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80       "remove_statement ( $statement [, $context])"
81           Removes the specified $statement from the underlying model.
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83       "remove_statements ( $subject, $predicate, $object [, $context])"
84           Removes the specified $statement from the underlying model.
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86       "count_statements ( $subject, $predicate, $object, $context )"
87           Returns a count of all the statements matching the specified
88           subject, predicate, object, and context. Any of the arguments may
89           be undef to match any value.
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91       "etag"
92           If the store has the capability and knowledge to support caching,
93           returns a persistent token that will remain consistent as long as
94           the store's data doesn't change. This token is acceptable for use
95           as an HTTP ETag.
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97       "size"
98           Returns the number of statements in the store.
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100       "supports ( [ $feature ] )"
101           If $feature is specified, returns true if the feature is supported
102           by the store, false otherwise. If $feature is not specified,
103           returns a list of supported features.
104

BUGS

106       Please report any bugs or feature requests to through the GitHub web
107       interface at <https://github.com/kasei/perlrdf/issues>.
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AUTHOR

110       Gregory Todd Williams  "<gwilliams@cpan.org>"
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113       Copyright (c) 2006-2012 Gregory Todd Williams. This program is free
114       software; you can redistribute it and/or modify it under the same terms
115       as Perl itself.
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119perl v5.36.0                      2022-07-22      RDF::Trine::Store::Memory(3)
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