1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

     3 <!-- This component and the accompanying materials are made available under the terms of the License 

     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

    12 <concept id="GUID-50AB1B77-1912-5C73-A1B5-41220E7A2EA5" xml:lang="en"><title>Store

    13 map as repository for Swizzles and associated stream IDs</title><shortdesc>This document describes using a store map as a repository for Swizzles

    14 and associated stream IDs.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

    15 <p>A store map is a table of entries where each entry consists of a Swizzle

    16 and a stream ID.</p>

    17 <p>When the in-memory object represented by a Swizzle is externalised, the

    18 resulting stream ID and the associated Swizzle can be added to a store map.

    19 The effect is to create an entry in the store map table containing the stream

    20 ID and the associated Swizzle; the Swizzle is said to be bound to the stream

    21 ID. Creating this entry in the store map is done using <codeph>CStoreMap::BindL()</codeph>.</p>

    22 <p>For a container type class <codeph>CCompound</codeph>, the diagram below

    23 shows the result of:</p>

    24 <ul>

    25 <li id="GUID-B49D7824-7128-506F-B026-A6F4785C5C94"><p>streaming out the in-memory

    26 objects represented by the Swizzles <codeph>iA</codeph>, <codeph>iB</codeph> and <codeph>iC</codeph>.</p> </li>

    27 <li id="GUID-F3352249-7B90-5F90-B706-A01DC2C87C41"><p>binding the swizzles

    28 with the resulting stream IDs</p> </li>

    29 </ul>

    30 <p>The other characteristics of a store map follow from this. </p>

    31 <fig id="GUID-16CAA671-B195-558E-868A-46463EDEB476">

    32 <title/>

    33 <image href="GUID-4028CDCF-D2E8-5668-A751-A7CFA86CED46_d0e363900_href.png" placement="inline"/>

    34 </fig>

    35 <p>Entries in the store map can be deleted. An entry can be identified either

    36 by Swizzle or by stream ID. <codeph>CStoreMap::Unbind()</codeph> deletes an

    37 entry identified by Swizzle; <codeph>CStoreMap::Forget()</codeph> deletes

    38 an entry identified by stream ID.</p>

    39 </conbody></concept>