NAME

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

VERSION

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

SYNOPSIS

        use RDF::Trine::Store::Memory;

DESCRIPTION

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

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Trine::Store class.

       "new ()"
           Returns a new memory-backed storage object.

       "new_with_config ( $hashref )"
           Returns a new storage object configured with a hashref with certain keys as arguments.

           The "storetype" key must be "Memory" for this backend.

           This  module  also supports initializing the store from a file or URL, in which case, a "sources" key
           may be used. This holds an arrayref of hashrefs.  To load a file, you may give the file name  with  a
           "file"  key  in  the  hashref,  and  to  load  a  URL, use "url". See example below. Furthermore, the
           following keys may be used:

           "syntax"
               The syntax of the parsed file or URL.

           "base_uri"
               The base URI to be used for a parsed file.

           "graph" NOT IMPLEMENTED
               Use this URI as a graph name for the contents of the file or URL.

           The following example initializes a Memory store based on a local file and a remote URL:

             my $store = RDF::Trine::Store->new_with_config(
                           {
                             storetype => 'Memory',
                             sources => [
                               {
                                 file => 'test-23.ttl',
                                 syntax => 'turtle',
                               },
                               {
                                 url => 'http://www.kjetil.kjernsmo.net/foaf',
                                 syntax => 'rdfxml',
                                 graph => 'http://example.org/graph/remote-users'
                               }
                             ]
                           });

       "temporary_store"
           Returns a temporary (empty) triple store.

       "get_statements ( $subject, $predicate, $object [, $context] )"
           Returns a stream object of all statements matching the specified subject, predicate and objects.  Any
           of the arguments may be undef to match any value.

       "get_contexts"
           Returns  an  RDF::Trine::Iterator over the RDF::Trine::Node objects comprising the set of contexts of
           the stored quads.

       "add_statement ( $statement [, $context] )"
           Adds the specified $statement to the underlying model.

       "remove_statement ( $statement [, $context])"
           Removes the specified $statement from the underlying model.

       "remove_statements ( $subject, $predicate, $object [, $context])"
           Removes the specified $statement from the underlying model.

       "count_statements ( $subject, $predicate, $object, $context )"
           Returns a count of all the statements matching the specified subject, predicate, object, and context.
           Any of the arguments may be undef to match any value.

       "etag"
           If the store has the capability and knowledge to support caching, returns  a  persistent  token  that
           will  remain  consistent as long as the store's data doesn't change. This token is acceptable for use
           as an HTTP ETag.

       "size"
           Returns the number of statements in the store.

       "supports ( [ $feature ] )"
           If $feature is specified, returns true if the feature is supported by the store, false otherwise.  If
           $feature is not specified, returns a list of supported features.

BUGS

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

AUTHOR

       Gregory Todd Williams  "<gwilliams@cpan.org>"

COPYRIGHT

       Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software;  you  can  redistribute  it
       and/or modify it under the same terms as Perl itself.

perl v5.38.2                                       2024-01-13                     RDF::Trine::Store::Memory(3pm)