Symbian3/SDK/Source/GUID-D8CC5B36-41DA-5989-8FA8-3F56306146A3.dita
changeset 7 51a74ef9ed63
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-D8CC5B36-41DA-5989-8FA8-3F56306146A3.dita	Wed Mar 31 11:11:55 2010 +0100
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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-D8CC5B36-41DA-5989-8FA8-3F56306146A3" xml:lang="en"><title>Introduction
+to Stores</title><shortdesc>A store is a collection of streams and is a fundamental part of
+the operating system.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>Stores are used to implement the persistence of objects. Typically, a store
+is a file, although an in-memory store is provided. A store can also be embedded
+as a stream within another store; this is a more advanced aspect of stores.</p>
+<p>For many purposes, stores replace the direct use of files and the File
+Server Client Side API, although other features of the file server are still
+relevant. Stores are a key building block for the application architecture
+because they provide the support necessary for embedded documents.</p>
+<p>The basic behaviour of stores is encapsulated by the <codeph>CStreamStore</codeph> class
+and provides the core abstract framework that allows streams to be manipulated.
+Each class derived from <codeph>CStreamStore</codeph> implements the parts
+of the API that are appropriate.</p>
+<p>A number of stores are defined that build on <codeph>CStreamStore</codeph>.
+Some of the most important are: <codeph>CPersistentStore</codeph>, <codeph>CFileStore</codeph>, <codeph>CDirectFileStore</codeph>, <codeph>CPermanentFileStore</codeph>, <codeph>CEmbeddedStore</codeph>, <codeph>CBufStore</codeph>. Each has various
+capabilities.</p>
+<p>A store is also the basis of the relational database provided by DBMS.</p>
+</conbody></concept>
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