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RDF::Trine::Store::Hexastore - RDF store implemented with the hexastore index

Author

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

Bugs

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

Description

       RDF::Trine::Store::Hexastore provides an in-memory triple-store based on six-way indexing as popularized
       by Hexastore.

Methods

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

       "new ()"
           Returns a new 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 "Hexastore" 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.

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

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

       "store ( $filename )"
           Write the triples data to a file specified by $filename.  This data may be  read  back  in  with  the
           "load" method.

       "load ( $filename )"
           Returns a new Hexastore object with triples data from the specified file.

       "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_pattern ( $bgp [, $context] )"
           Returns a stream object of all bindings matching the specified graph pattern.

       "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.

       "get_contexts"
       "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.

       "etag"
           Returns an Etag suitable for use in an HTTP Header.

       "nuke"
           Permanently removes all the data in the store.

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

Name

       RDF::Trine::Store::Hexastore - RDF store implemented with the hexastore index

Synopsis

        use RDF::Trine::Store::Hexastore;

Version

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

See Also