Symbian3/PDK/Source/GUID-95259B6D-19A0-569E-B04B-F75B8DADC80E.dita
author Dominic Pinkman <dominic.pinkman@nokia.com>
Wed, 16 Jun 2010 10:24:13 +0100
changeset 10 d4524d6a4472
parent 9 59758314f811
child 12 80ef3a206772
permissions -rw-r--r--
removal of PIPS 'antiword' example pending a decision on its license
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<?xml version="1.0" encoding="utf-8"?>
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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<!-- This component and the accompanying materials are made available under the terms of the License 
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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"Eclipse Public License v1.0" which accompanies this distribution, 
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents: 5
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<!-- Initial Contributors:
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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    Nokia Corporation - initial contribution.
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents: 5
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Contributors: 
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents: 5
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-->
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
Dominic Pinkman <dominic.pinkman@nokia.com>
parents: 5
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<!DOCTYPE concept
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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parents: 5
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
59758314f811 Week 23 contribution of PDK documentation content. See release notes for details. Fixes bugs Bug 2714, Bug 462.
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parents: 5
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<concept xml:lang="en" id="GUID-95259B6D-19A0-569E-B04B-F75B8DADC80E"><title>The object container index</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>All object containers must be held within a special type of container known as an object container index. </p> <p>An object container index is an instance of a <xref href="GUID-72761B3C-ECB6-34B2-87ED-C972E479357A.dita"><apiname>CObjectConIx</apiname></xref> class. </p> <p>An object container index not only acts as a container for object containers, but also provides the mechanism through which object containers are created. </p> <p> <xref href="GUID-72761B3C-ECB6-34B2-87ED-C972E479357A.dita#GUID-72761B3C-ECB6-34B2-87ED-C972E479357A/GUID-8D0B0EC9-AE35-3D06-AEA0-648E107F8189"><apiname>CObjectConIx::CreateL()</apiname></xref> creates an object container and is responsible for assigning a unique ID to it. This unique ID forms part of the identity of all reference counting objects which that object container will, in due course, hold. </p> <p>For example, the sever creates a single object container index; from this it creates a number of object containers, each of which, in turn, holds reference counting objects. The following drawing shows the idea. </p> <fig id="GUID-253D9535-D893-575C-8970-D9A94799952B"><image href="GUID-C47514B1-2DD2-5E75-962A-B8E6358E9880_d0e346339_href.png" placement="inline"/></fig> <p>An object container index is implemented as a simple array where each element of the array contains a pointer to an object container. <xref href="GUID-72761B3C-ECB6-34B2-87ED-C972E479357A.dita#GUID-72761B3C-ECB6-34B2-87ED-C972E479357A/GUID-8D0B0EC9-AE35-3D06-AEA0-648E107F8189"><apiname>CObjectConIx::CreateL()</apiname></xref> constructs an object container, assigns a unique ID to it and adds it into the <xref href="GUID-72761B3C-ECB6-34B2-87ED-C972E479357A.dita"><apiname>CObjectConIx</apiname></xref> array. </p> <p>See also: </p> <ul><li id="GUID-7766067F-FB87-57F4-B1C9-EB299B8F7F20"><p> <xref href="GUID-72761B3C-ECB6-34B2-87ED-C972E479357A.dita"><apiname>CObjectConIx</apiname></xref>  </p> </li> <li id="GUID-74D1FD14-DA1C-5C93-9036-9863A6C8ACC2"><p> <xref href="GUID-DE901A59-C714-356A-9490-C4E9C9F186DB.dita"><apiname>CObjectCon</apiname></xref> </p> </li> <li id="GUID-FE6D8C1C-5F56-5C5F-855C-DE1386FAEB44"><p> <xref href="GUID-9230EF62-376A-389C-B720-7C1EDCB7EA97.dita"><apiname>CObject</apiname></xref> </p> </li> </ul> </conbody></concept>