author | Dominic Pinkman <Dominic.Pinkman@Nokia.com> |
Fri, 22 Jan 2010 18:26:19 +0000 | |
changeset 1 | 25a17d01db0c |
child 3 | 46218c8b8afa |
permissions | -rw-r--r-- |
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<?xml version="1.0" encoding="utf-8"?> |
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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<!-- This component and the accompanying materials are made available under the terms of the License |
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"Eclipse Public License v1.0" which accompanies this distribution, |
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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<!-- Initial Contributors: |
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Nokia Corporation - initial contribution. |
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Contributors: |
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--> |
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<!DOCTYPE concept |
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PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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<concept id="GUID-40E64445-CBA3-59E4-A777-937609B311C9" xml:lang="en"><title>Contacts |
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Model Overview</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
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<section><title>Purpose</title> <p>The purpose of this document is to give |
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guidelines on how to use the Contacts Model API most efficiently for a range |
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of typical operations. The Contacts Model is an engine component that provides |
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access to contact information stored on a Symbian OS device. Just like a real-world |
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address book it stores and organises names, telephone numbers, addresses and |
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other details of individuals and companies. It can be used to add, delete |
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and edit data as well as providing information to clients, and sorting and |
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searching contacts. </p> </section> |
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<section><title>Architectural Relationships</title> <p>The Contacts Model |
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is primarily used by messaging, telephony, synchronisation and vCard viewer |
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clients on a Symbian OS device. </p> <fig id="GUID-79192704-415D-530B-8FEB-F73A5C93D0C2"> |
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<title> CONTACTS MODEL CLIENTS </title> |
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<image href="GUID-5B6634EA-EB78-504E-BC5D-ABA67EEA06DF_d0e591102_href.png" placement="inline"/> |
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</fig> </section> |
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<section><title>Description</title> <p>The <xref href="GUID-6A6C7B3B-1E44-3731-956D-590A1122FF6E.dita"><apiname>CContactDatabase</apiname></xref> class |
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allows clients access to the contact data stored on the device and has the |
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following functionality: </p> <p><b>Contact database management </b> </p> <p>More than one Contact Database |
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can exist on a phone, but a default Contact Database is used if no other is |
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specified. Clients can open, close, alter and delete the Contact Database. |
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Extra databases can be added as required. The Contact Database can be moved |
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between drives, and can be compressed in order to save space. </p> <p><b>Contact items management </b> </p> <p>Contact Items are made up of Contact |
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Fields and can be added to and removed from the database. Items in the database |
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can be opened, read, sorted and deleted. An item must be opened before it |
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can be edited. Editing an item often means altering data in one or more fields, |
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such as name or telephone number. To provide different sorting views Contact |
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Items can be grouped in categories such as ‘colleagues’ or ‘family’. </p> <p><b>Searching the database </b> </p> <p>Searching <xref href="GUID-6A6C7B3B-1E44-3731-956D-590A1122FF6E.dita"><apiname>CContactDatabase</apiname></xref> implements |
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searching and sorting and also provides separate phone number matching functions. |
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These provide a fast way of indexing and looking up phone numbers, for example, |
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for looking up caller IDs on incoming calls. </p> <p><b>Speed dial functionality </b> </p> <p>The database owns speed dial information. |
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This is a mapping between a single digit integer and a telephone number. There |
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may be up to nine speed dial telephone numbers. If a Contact Item is deleted, |
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its speed dial mapping is removed. </p> <p><b>Notification of changes </b> </p> <p>The database needs to be informed |
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of data changes made to it. Sometimes a UI-level application may need to respond |
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to updates made by other clients. The Contacts Model provides an observer |
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to transmit this information between <xref href="GUID-6A6C7B3B-1E44-3731-956D-590A1122FF6E.dita"><apiname>CContactDatabase</apiname></xref> instances. </p> </section> |
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</conbody></concept> |