<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Store 'memory'</title> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2"> <link rel="start" href="index.html" title="Redland RDF Library Manual"> <link rel="up" href="redland-storage-modules.html" title="Storage Modules"> <link rel="prev" href="redland-storage-module-hashes.html" title="Store 'hashes'"> <link rel="next" href="redland-storage-module-file.html" title="Store 'file'"> <meta name="generator" content="GTK-Doc V1.10 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> <link rel="chapter" href="redland.html" title="Redland Overview"> <link rel="chapter" href="introduction.html" title="Introduction"> <link rel="part" href="tutorial.html" title="Part I. Tutorial"> <link rel="part" href="reference-manual.html" title="Part II. Reference Manual"> <link rel="chapter" href="objects.html" title="Objects in C"> <link rel="chapter" href="redland-storage-modules.html" title="Storage Modules"> <link rel="index" href="indexes.html" title="Index"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"> <td><a accesskey="p" href="redland-storage-module-hashes.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td> <td><a accesskey="u" href="redland-storage-modules.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td> <td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td> <th width="100%" align="center">Redland RDF Library Manual</th> <td><a accesskey="n" href="redland-storage-module-file.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td> </tr></table> <div class="section" lang="en"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="redland-storage-module-memory"></a>Store 'memory'</h2></div></div></div> <p>This module is always present (cannot be removed) and provides a simple and fast in-memory store with no persistence. It is the default store if no store name is given to the storage constructors.</p> <p>The memory store is not suitable for large in-memory models since it does not do any indexing. For that, use the <a class="xref" href="redland-storage-module-hashes.html" title="Store 'hashes'">the section called “Store 'hashes'”</a> with <code class="literal">hash-type</code> of <code class="literal">memory</code>.</p> <p>The module provides optional contexts support enabled when boolean storage option <code class="literal">contexts</code> is set.</p> <p>Examples:</p> <pre class="programlisting"> /* Explictly named memory storage */ storage=librdf_new_storage(world, "memory", NULL, NULL); /* Default storage type, which is memory */ storage=librdf_new_storage(world, NULL, NULL, NULL); /* In-memory store with contexts */ storage=librdf_new_storage(world, NULL, NULL, "contexts='yes'"); </pre> <p>Summary:</p> <div class="itemizedlist"><ul type="disc"> <li><p>In-memory</p></li> <li><p>Fast</p></li> <li><p>Suitable for small models</p></li> <li><p>No indexing</p></li> <li><p>No persistance</p></li> <li><p>Optional contexts (with option <code class="literal">contexts</code> set)</p></li> </ul></div> </div> <div class="footer"> <hr> Generated by GTK-Doc V1.10</div> </body> </html>