O'REILLY NETWORK'S ONJava.com NEWSLETTER
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The Independent Source for Enterprise Java
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Learn how easy it is to extend Web applications to phone
users. Reusing Web applications can reduce development
time for building voice and touch-tone applications by up to
80%, resulting in lower costs and faster ROI. SandCherry
extends web-based apps to voice -- download free white paper.
http://www.sandcherry.com/resource.html
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Greetings...
With J2SE 5.0 expected to go final any day now, here's a look back at
articles that take 5.0 in unpredictable and innovative directions. I love
pieces like these that move beyond the typical use cases - like how most
introductions to aspect-oriented programming show how to use it for
logging - and instead put Java to some surprising uses.
For example, when I first saw J2SE 5.0's generics, I thought "yay, now I
don't have to do a potentially-wrong cast when pulling an object out of a
collection. But Arjan Vermeij saw more. In "A Generic MVC Model in
Java", he shows how generics can "genericize" the boiler-plate code used
in developing model-view-controller (MVC) arrangements. Instead of having
to write listener handling and event notification code over and over
again, Arjan moves this code into generic model and listener classes.
http://www.onjava.com/pub/a/onjava/2004/07/07/genericmvc.html
Bill Burke takes two new programming paradigms - aspect-oriented
programming and metadata (aka, "attributes") and combines them,
effectively using the attributes to mark the point-cuts where AOP code
should execute. In "Aspect-Oriented Annotations", he shows how this
combination effectively allows him to create his own Java syntax. In one
example, he creates the attribute @Oneway, which indicates that a method
is to be fired off in its own thread.
http://www.onjava.com/pub/a/onjava/2004/08/25/aoa.html
Those of you who've been using JDBC for a while are probably used to the
routine of getting a connection, executing a query, getting a result set
from that, and iterating over the results. But keeping this database
connection open whileh working with results is less than optimal in
high-load enterprise environments. In "Using CachedRowSet to Transfer
JDBC Query Results Between Classes", Sean Eidemiller shows an alternative
- quickly populating a CachedRowSet and releasing the database connection,
then sharing the CachedRowSet around your application's classes as needed.
This approach has other advantages as well, such as pushing changes back
to the database with the CachedRowSet.
http://www.onjava.com/pub/a/onjava/2004/06/23/cachedrowset.html
Thanks, as always, for for your support of ONJava.
Chris Adamson, editor
ONJava.com
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SandCherry's AppDev(TM) VXML is an application development platform,
integrated with BEA WebLogic(TM) Workshop and Eclipse, allowing developers
to extend Web applications to phone and multimodal users. Key benefits
include: reduced costs, compatibility with leading Web and voice
platforms, and simplified development of VoiceXML applications. AppDev
VXML builds on the three-tier model for Web applications by incorporating
the voice and touch-tone interactions into a "voice" presentation layer.
By using this model, developers can reduce application-building costs up
to 80 percent by reusing the existing data access layer and business logic
already developed for a Web application. VoiceXML is the leading standard
for the development of applications using speech recognition, touch-tone
or text-to-speech elements. AppDev VXML provides a standards-based
solution for creating applications compliant with any J2EE application
server environment and VoiceXML 2.0 compliant browser, building them in a
J2EE framework generates VoiceXML commands for the VoiceXML browser
running an application.
Similar to today's Web development environments, new voice-enhanced
application can be written and then tested on a laptop or network server.
SandCherry's AppTuner(TM) Tool provides a standalone PC-based environment
for testing applications built using AppDev VXML or any VXML-compliant
development tool. The AppTuner tool provides a standardized framework for
the real-time execution of speech applications using the same speech
technology resources, such as a VoiceXML browser, an Automatic Speech
Recognition (ASR) engine and a Text-to-Speech (TTS) engine, as in a live
service deployment. The AppTuner realistically validates the flow, the
grammars, and the timing of speech applications. It eliminates the need
for a telephony board or a PSTN T1 line or hosted voice portal to access
an application. The end result is the ability to perform quick
prototyping and validation of applications reducing the time to build and
deploy new applications
For more information contact SandCherry at Phone: +1 (720) 562-4500, Toll
Free: +1 (866) 383-4500, or Email: [EMAIL PROTECTED]
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