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.