NAME¶
RDF::Trine::Store::Memory - Simple in-memory RDF store
VERSION¶
This document describes RDF::Trine::Store::Memory version 1.011
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.
- "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.