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Source: developerWorks : XML : Technical library Presenting tablet computers with text designed simply for reading by humans lessens the capacity of the machine to help the reader. To move text to a higher level of generality, you need to provide the machine with disambiguated text and the tools to perform more effective searches and analysis. Discover how XML can provide some structure towards this end.
Source: developerWorks : Open source : Technical library Many of your Android applications will need to interact with Internet data, which comes in a variety of formats. In this article, build an Android application that works with two popular data formats -- XML and JavaScript Object Notation (JSON) -- as well as the more exotic protocol buffers format from Google. You'll learn about the performance and coding trade-offs associated with each format.
Source: developerWorks : Open source : Technical library Whether you are monitoring your network to identify performance issues,
debugging an application, or have found an application on your network that you do
not recognize, occasionally you need to look deep into the protocols being used on
your UNIX network to understand what they are doing. Some protocols are easy to
identify and understand, even when used on non-standard ports. Others need more investigation to understand what they are doing and what information they are exchanging. In this article, we will take a look at techniques for performing detailed analysis of the protocols in use on your UNIX network.
Source: developerWorks : Open source : Technical library Data mining can be used to turn seemingly meaningless data into useful
information, with rules, trends, and inferences that can be used to improve
your business and revenue. This article will go over the last common data
mining technique, "Nearest Neighbor," and will show you how to use the WEKA
Java library in your server-side code to integrate data mining technology into
your Web applications.
Source: developerWorks : Open source : Technical library Mobile phones are transforming economies and societies all over the world, but often with phones that might be considered out-of-date by gadget geeks in more developed nations. The good news is that applications that work with these phones can be very simple to write, and they give your application a huge potential user base. In this article, learn how to write programs that respond to specialized requests for information from 2G phones.
Source: developerWorks : Open source : Technical library One of the most useful new features in HTML 5 is the standardization of local storage. Finally, Web developers can stop trying to fit all client-side data into 4 KB Cookies. Now you can store large amounts of data on the client with a simple API. This is a perfect mechanism for caching, so you can dramatically improve the speed of your application -- a critical factor for mobile Web applications that rely on much slower connections than their desktop brothers. In this second article in this series on HTML 5, you will see how to use local storage, how to debug it, and you will see a variety of ways to use it to improve mobile Web applications.
Source: developerWorks : Open source : Technical library Apache CXF shares certain underlying components with both Apache Axis2 and Metro but combines the components within an entirely different architecture. Dennis Sosnoski continues his Java Web services column series by comparing how the CXF, Metro, and Axis2 stacks perform both with and without WS-Security.
Source: developerWorks : Open source : Technical library Data mining is the talk of the tech industry, as companies are
generating millions of data points about their users and looking for a way to
turn that information into increased revenue. Data mining is a collective
term for dozens of techniques to glean information from data and turn it into
something meaningful. This article will introduce you to open source
data-mining software and some of the most common techniques to interpret
data.
Source: developerWorks : Open source : Technical library Rich Internet Applications (RIAs) often utilize different bundled technologies. Choosing the right grouping
of technologies can expedite development times and provide users a complete and rich
Internet experience. Discover how to use Java EE platform components on the server side,
the Adobe Flex platform on the client side, and the MySQL database server for storage
persistence.
Source: developerWorks : Open source : Technical library As multimedia becomes more prevalent, it becomes important to be able to
size video for the end-use, just as we've become accustomed to do with
graphics. Fortunately, an open source tool, WinFF, makes such conversions easy
and even fun to do. See four video-conversion examples: Flash, Windows
Media Player, QuickTime and BlackBerry.
Source: developerWorks : Open source : Technical library Smarty is a PHP template engine that lets you separate the business
logic from the presentation in your Web applications. Smarty currently has no
built-in Asynchronous JavaScript and XML (Ajax) support, but its plug-in architecture lets you extend it easily
and use it together with JavaScript frameworks, such as jQuery. This series
describes how to use Smarty in Ajax applications, how to create
Smarty plug-ins, and how to improve the code quality of your Web applications,
making the code more readable and easier to maintain.
Source: developerWorks : Open source : Technical library So you've got to cut costs, but you're not a manager. You're a
software developer, or a power user, or just someone who needs to keep the
bottom line healthy enough to support your salary. These are ideal situations
for introducing open source software solutions into your environment. That
might sound like you'll spend the next three weeks learning to program or
write makefiles, but it's just not so. Read on and see how open source is a
flexible, usable approach to efficiency in your work
environment.
Source: developerWorks : Open source : Technical library Portals provide information from diverse sources in a unified way. When portlets are integrated into a portal, the
functions delivered as part of each portlet should be available all of the
time. Unit testing can ensure that the features of your portlets will work
all the time, and everywhere. It is important to unit test portlets before
they are hosted publicly, and testing with
frameworks will speed up the testing process. In this article, learn about
portletUnit, a
JUnit testing framework for testing JSR-168 portlets. portletUnit uses a mock
container for testing, thereby reducing
the cost of investment in huge portal server environments. With the portletUnit framework
you can run unit tests
on any machine--without a portal server.
Source: developerWorks : Open source : Technical library Mobile devices play an ever-increasing role in our lives today. We use
them to communicate. We use them to navigate. We even use them as a handy
flashlight. While custom applications are extremely popular for the
iPhone and the Android platforms, there is an opportunity in mobile Web
applications. This article is the first in a two-part "Android and iPhone browser wars" series on developing
browser-based applications for iPhone and Android. Along the
way, we will build a simple network monitoring application that runs within the
confines of the desktop and both mobile browsers.
Source: developerWorks : Open source : Technical library To conduct software reviews and inspections smoothly, you need a set of
tools that includes techniques for reading phases, roles, and software tools.
Most people think review and inspection must be manual, with little room for
tools and automation. However, there are software tools to make reviews and
inspections more efficient, structured, and at least semi-automated. This
article introduces a toolset for code reviews that includes the techniques and
software tools that you need.
Source: developerWorks : Open source : Technical library Have you ever wished that Cookies were a lot bigger so you could store
more data on the client, or that you could make cross-domain Asynchronous
JavaScript and XML (Ajax) calls? If
so, you are in luck. Both of these techniques can be accomplished using
invisible Flash. So, just what is invisible Flash? It is not really invisible,
however, it is 1 pixel by 1 pixel, which makes it pretty hard to see. And, it can
be used as a way to tap into the capabilities of the Flash Player. In
this article, you will learn how to build invisible Flash files that let you to store up to 100 KB of client-side data and make cross-domain Ajax calls
-- all without your users ever knowing that Flash is being used.
Source: developerWorks : Open source : Technical library The e4 project is the next generation of Eclipse. e4 will provide a platform for pervasive
component-based applications and tools. In this article, learn about
some of the new features in e4, such as XWT and declarative styling.
XWT is a new toolkit for defining the structure of SWT/JFace
applications declaratively in XML, while
leaving the business logic in Java code. It can separate the model and
representation while saving much of the layout and UI related code originally
developed for your SWT/JFace application.
An example application walks you through the XWT interface and data binding
feature.
Source: developerWorks : Open source : Technical library Many-to-many (m:m) relationships can be tricky to deal with in a Web
application. In this installment of Mastering Grails, Scott Davis shows you how to
implement m:m relationships in Grails successfully. See how they're handled by the
Grails Object Relational Mapping (GORM) API and the back-end database. Also find out
how a bit of Ajax (Asynchronous JavaScript + XML) can streamline the user interface. (This is a test.)
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