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Symbian3/PDK/Source/GUID-9E83A253-3C7F-58E9-94FE-EC127BE9C026.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Tue, 30 Mar 2010 11:56:28 +0100
changeset 5 f345bda72bc4
parent 3 46218c8b8afa
child 14 578be2adaf3e
permissions -rw-r--r--
Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
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f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
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<?xml version="1.0" encoding="utf-8"?>
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     2
 
<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     3
 
<!-- This component and the accompanying materials are made available under the terms of the License
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     4
 
"Eclipse Public License v1.0" which accompanies this distribution,
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     5
 
and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     6
 
<!-- Initial Contributors:
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     7
 
    Nokia Corporation - initial contribution.
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     8
 
Contributors:
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
     9
 
-->
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
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<!DOCTYPE concept
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents: 3
diff changeset 
    11
 
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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25a17d01db0c Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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<concept xml:lang="en" id="GUID-9E83A253-3C7F-58E9-94FE-EC127BE9C026"><title>Transaction Notifications</title><prolog><metadata><keywords/></metadata></prolog><conbody><section id="GUID-30596B27-BF0F-544C-80DF-199352143AF2"><title>Overview</title> <p>Database events are not sent to observers during a transaction. Instead, they are queued by the server and only sent once the transaction is committed. If the transaction is cancelled (if a rollback occurs) then none of the queued events will be sent to observers apart from the <xref href="GUID-4695321C-1745-3173-8D8E-5FBE89445F55.dita"><apiname>EContactDbObserverEventRollback</apiname></xref> event. </p> </section> <section id="GUID-E66C3FE1-08D2-541E-AE24-CEE5F47CD967"><title>Transaction Related APIs</title> <p>The behaviour described above comes into effect when using the following APIs: </p> <ul><li id="GUID-CC0201D5-B1EF-53E1-9E5C-856097990DAD"><p> <xref href="GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89.dita#GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89/GUID-D21FF939-216E-3C3C-B9A6-3D04A3C62A9A"><apiname>void CContactDatabase::DatabaseBeginL(…)</apiname></xref>  </p> </li> <li id="GUID-81700472-6AAF-5334-BEE9-4BC77CDDE9EC"><p> <xref href="GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89.dita#GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89/GUID-D2F11144-62B4-3A60-AF6F-C2BCD2D2AB75"><apiname>void CContactDatabase::DatabaseBeginLC(…)</apiname></xref>  </p> </li> <li id="GUID-49592F0D-7A8C-5ED5-A86E-68F887AA4C65"><p> <xref href="GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89.dita#GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89/GUID-1E22B186-3CBF-3CD7-A165-D2BBDA1B25CA"><apiname>void CContactDatabase::DatabaseCommitL(…)</apiname></xref>  </p> </li> <li id="GUID-6D428B8B-B88F-50EB-A8A4-558E6189B815"><p> <xref href="GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89.dita#GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89/GUID-44F9D847-5AC6-3860-8B85-2E9B58DE3DB7"><apiname>void CContactDatabase::DatabaseCommitLP(…)</apiname></xref>  </p> </li> <li id="GUID-FA7C6C21-CF7F-553F-BFE7-AD9509E104AA"><p> <xref href="GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89.dita#GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89/GUID-48DAF2AB-685B-3A64-87F8-940ACD8B45AF"><apiname>void CContactDatabase::DeleteContactsL(…)</apiname></xref>  </p> </li> <li id="GUID-FA898881-803E-5DD7-8E16-26A0CD07F7E4"><p> <xref href="GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89.dita#GUID-76906F78-4D8A-3ECA-832E-BD996F54EB89/GUID-C2B81C2C-6F85-3032-A513-FED13B55C049"><apiname>void CContactDatabase::DatabaseRollback()</apiname></xref>  </p> </li> </ul> </section> <section id="GUID-51302568-7DEE-5E51-A635-BF62C2566D69"><title>Implementation Considerations </title> <p>A maximum of 1000 database events will be queued during a transaction. If there are more events than this then the queued events will be discarded. When the transaction is committed the <xref href="GUID-E3B188B5-36BF-33AF-AED6-1394CAA52F80.dita"><apiname>EContactDbObserverEventUnknownChanges</apiname></xref> event will be sent to observers instead. </p> <p>It is important to note that in the previous version of the Contacts Model database events were sent to observers as they occurred during a transaction. The new model behaviour is more appropriate since, when a rollback occurs, there is no point in receiving events for operations which never actually happened (that is, were not committed). </p> </section> </conbody></concept>
FCL/sftools/depl/docscontent