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Wireless environment for data access on a server

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Information about Wireless environment for data access on a server

Published on February 24, 2008

Author: fpgabe

Source: slideshare.net

Description

This is a short presentation on howto create a wireless environment on a server by use of J2ME and VB.NET (ASPX) technology.
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Wireless environment for data access on a server Auteur: Vincent Claes Promotor (Vigo): Eng. Luís M. Álvarez Sabucedo Promotor (Vigo): Ph.D. Luís E. Anido Rifón Promotor (HL): Dr. Ing. Jan Boutsen Academiejaar: 2003 - 2004 UNIVERSIDADE DE VIGO

Presentatie Overzicht Gebruikte technologieën Ontwikkeld project Conclusies

Overzicht

Gebruikte technologieën

Ontwikkeld project

Conclusies

Universidade de Vigo

Overzicht

Gebruikte technologieën Wireless devices HTTP connection Database Server

Wireless devices

HTTP connection

Database Server

Wireless devices HTTP connection Database Server Gebruikte technologieën

Wireless devices

HTTP connection

Database Server

Wireless devices extremely limited memory Small screen sizes Alternative input methods Slow processors

extremely limited memory

Small screen sizes

Alternative input methods

Slow processors

Java technology Enterprise Edition (J2EE)  Servers Standard Edition (J2SE)  Desktops Micro Edition (J2ME)  Small devices

Enterprise Edition (J2EE)

 Servers

Standard Edition (J2SE)

 Desktops

Micro Edition (J2ME)

 Small devices

J2ME Configurations  Hardware capabilities of mobile devices Profiles  Define the full set of API classes

Configurations

 Hardware capabilities of mobile devices

Profiles

 Define the full set of API classes

J2ME - Configurations Connected Device Configuration (CDC) 2MB of memory 32-bit microprocessor or controlller an available network connection, preferably high bandwidth Connected Limited Device Configuration (CLDC) Minimum of 160KB total memory Minimum 16-bit 25 MHz-processor Limited user-interface facilities No (or intermittent) low-bandwidth network connection

Connected Device Configuration (CDC)

2MB of memory

32-bit microprocessor or controlller

an available network connection, preferably high bandwidth

Connected Limited Device Configuration (CLDC)

Minimum of 160KB total memory

Minimum 16-bit 25 MHz-processor

Limited user-interface facilities

No (or intermittent) low-bandwidth network connection

J2ME – Profiles (CLDC) Mobile Information Device Profile (MIDP)  today’s mobile devices  limited subset of J2SE’s feature set  custom interface and input/output classes Personal Digital Assistant Profile (PDAP)  a superset of the MIDP  PIM,…

Mobile Information Device Profile (MIDP)

 today’s mobile devices

 limited subset of J2SE’s feature set

 custom interface and input/output classes

Personal Digital Assistant Profile (PDAP)

 a superset of the MIDP

 PIM,…

J2ME – MIDP

Programs used JCreator Wireless Toolkit 2.0

JCreator

Wireless Toolkit 2.0

Gebruikte technologieën Wireless devices HTTP connection Database Server

Wireless devices

HTTP connection

Database Server

HTTP Just an interface on the client  a kind of ‘browser’ Data is on the server  Connection is needed

Just an interface on the client

 a kind of ‘browser’

Data is on the server

 Connection is needed

HTTP HyperText Transfer Protocol HTTP transaction  request send by the client to the server  response returned from the server to the client

HyperText Transfer Protocol

HTTP transaction

 request send by the client to the server

 response returned from the server to the client

XML eXtensible Markup Language is a meta-language that describes the content of the document (self describing data) XML does not specify the tag set or grammar of the language XML is a cross-platform ,software and hardware independent tool for transmitting information

eXtensible Markup Language is a meta-language that describes the content of the document (self describing data)

XML does not specify the tag set or grammar of the language

XML is a cross-platform ,software and hardware independent tool for transmitting information

XML

XML Parsing Reading the data out of the tags kXML

Reading the data out of the tags

kXML

Gebruikte technologieën Wireless devices HTTP connection Database Server

Wireless devices

HTTP connection

Database Server

Database Server Information was stored in a SQL database SQL= Structured Query Language ASP (Active Server Pages) Used to generate the XML files aspx – VB.NET

Information was stored in a SQL database

SQL= Structured Query Language

ASP (Active Server Pages)

Used to generate the XML files

aspx – VB.NET

Final overview

Developed Project

Conclusions J2ME will be the dominant platform for mobile devices  450 million handsets (2007) Data processing on the server side Limitations of the devices

J2ME will be the dominant platform for mobile devices

 450 million handsets (2007)

Data processing on the server side

Limitations of the devices

Resources IBM developerworks http://www.ibm.com/developerworks/ Nokia Forum http://www.forum.nokia.com Sun Website http://www.sun.com

IBM developerworks

http://www.ibm.com/developerworks/

Nokia Forum

http://www.forum.nokia.com

Sun Website

http://www.sun.com

Bedankt voor uw aandacht. Vragen ?

Bedankt voor uw aandacht.

Vragen ?

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