Oracle Application Server 10g Essentials [Electronic resources] نسخه متنی

14.2 OracleAS Wireless Development

OracleAS Wireless applications can be
developed in a completely custom fashion or you can leverage prebuilt
applications that are provided with OracleAS Wireless.
Markup
languages supported for mobile applications include the following:

XHTML Mobile Profile

XHTML with XForms

XML

The OracleAS Wireless engine provides translation to the appropriate
device markup language.

XForms, as defined by the W3C, enables the creation of rich, device-independent forms interfaces through data and processing logic that is separate from presentation logic. Auxiliary scripting isn't needed with XForms, which is an improvement over previous HTML forms creation methods.

When developing an OracleAS Wireless application, you typically
follow these general steps:

Define business and technical requirements.

Design the mobile application needed to fulfill the requirements.

Identify prebuilt business logic for reuse, as appropriate, along
with needed Web Services.

Decide if the application will be accessed via small-screen browsers,
messaging devices such as Short Message Service (SMS), or a mixture.

Build the mobile application using the Oracle JDeveloper Wireless
Extension and device simulators.

Test the mobile application using the Mobile My Studio.

Deploy the mobile application into production for use on real devices.

14.2.1 OracleAS Wireless Development Tools

The primary tools
available for OracleAS Wireless development are Oracle JDeveloper,
the Wireless Development Kit, and My Studio.

14.2.1.1 Oracle JDeveloper

Oracle JDeveloper (packaged in
the Oracle Developer Suite) is the primary tool used to build
OracleAS Wireless applications. The GUI-based
JDeveloper Wireless
Extension (JWE) enables you to create mobile applications through
wizards and templates. You can use this tool to edit applications.
Its device simulators also allow you to test applications and
advanced systems and to view log files used in the debugging process.
You can deploy applications from the JWE user interface.

14.2.1.2 OracleAS Wireless Development Kit

The Wireless Development Kit can be
used with Oracle JDeveloper, as well as with other development
environments and device simulators. You can obtain the WDK at the
Oracle Technology Network Wireless web
site at http://otn.oracle.com/tech/wireless/indexl.

The WDK includes the following:

XHTML and J2ME samples

Device detection

Error logging

Location services

A wireless client

Java messaging APIs

Web Services

Web Services components include a J2ME SDK and a J2ME Web Services
Proxy Server.

A small-footprint version of OracleAS Wireless
Multi-Channel Server is provided in the
WDK and enables the testing of wireless applications without
requiring deployment of the full Oracle Application Server. The
Multi-Channel Server is described in Section 14.3. The
industrial-solution version of the WDK enables developers to build
applications using XForms embedded within XHTML documents and then
test them in a Telnet emulator.

Figure 14-2 shows the home page for the Mobile area
of the OTN, a free service for developers. The figure shows some of
the mobile resources available through OTN.

Figure 14-2. Oracle Technology Network Mobile web site

14.2.1.3 My Studio

After you have
created your application, you deploy it to a web server for voice or
browser access, or for messaging. Applications can be deployed
anywhere they are accessible from the Internet. The next step is to
test your application.

Oracle provides an online testing facility, the Oracle Mobile My
Studio. You can obtain My Studio from http://studio.oraclemobile.com.

This web site provides test facilities for voice, mobile browser, and
two-way SMS. Real-time logs are generated as you test the
applications that you view when debugging your application.

When you come to the My Studio web site for the first time, you need
to register on the Welcome page. Once you are a registered user, you
can log in. You will then see tabs for Applications, Samples, and
Webservices (see Figure 14-3). Exploring the My
Studio tabs leads you to the following:

Figure 14-3. Home page for My Studio online testing of OracleAS Wireless applications

Applications

Provides a list of existing configured applications that you can view
and test. Alternatively, you can configure new applications for voice
and browser access (by providing the name and URL) or SMS and email
(by providing the short name and HTTP parameters your application
expects).

Samples

Provides sample application code you can view and test.

Webservices

Enables the registration of new J2ME Web Services
and the downloading of registered hubs. Also provides a link to
download the J2ME SDK.

My Studio includes online directions for how to test applications.
Other online documentation provides help getting started, developing
applications, and advanced topics related to voice, messaging, and
J2ME Web Services. A link to the Mobile Studio Forum allows you to
communicate with other OracleAS Wireless developers.

14.2.2 Prebuilt Wireless Applications

OracleAS Wireless provides a set of
prebuilt applications that can be deployed on their own or that can
serve as a starting point for building other applications. These
applications are:

Mobile Office

Mobile Messaging

Mobile Location

These applications are described in the following sections.

OracleAS Wireless also provides the underlying infrastructure for
mobile and voice access to Oracle's Collaboration
Suite and E-Business Suite.

14.2.2.1 Mobile Office

Mobile Office
provides wireless, voice, and messaging applications used to access
common office productivity systems. Supported systems and interfaces
include:

Email

Through support of email servers
supporting SMTP, POP3, or IMAP4, such as Oracle Collaboration Suite,
Microsoft Exchange, and Lotus Domino

Calendar

Through support of Oracle Collaboration Suite, Oracle Calendar 5.2,
and Microsoft Exchange 5.5 and 2000

Directory

Through access to a Corporate Directory deployed using the Oracle
Internet Directory or any LDAP directory

Address Book

Through support of Oracle Collaboration Suite, Oracle Calendar 5.2,
Microsoft 5.5 and 2000, and Lotus Domino Release 5 and 6

Tasks

Through support of Microsoft 5.5 and 2000 and Lotus Release 5 and 6

Files

Through support of WebDAV and Oracle Files

Published interfaces are available to extend the use of these
applications to nonsupported systems.

14.2.2.2 Mobile Messaging

Mobile
Messaging applications provide message exchange via email, SMS, MMS,
voice, or fax. You can choose target destinations from address books
or directory entries, or you can specify your own. Alerts and
notifications can include email alerts, calendar appointment
reminders and new appointments, and custom alerts using the Alert
Service.

14.2.2.3 Mobile Location

Mobile
Location applications are location-aware and can be deployed via
wireless, voice, or messaging interfaces. These applications can
provide driving directions, find nearby businesses (along with
directions to those businesses), and show locations on maps.