Our java.net Spotlight this week is the latest two additions to the SDN What's New in JavaFX 1.2 article series, which is written by Chris Wright and James L. Weaver. Parts two and three of the series were published in November.
Chris Wright is a JavaFX developer for VNImedia, where he applies JavaFX to create interactive software on LCD touchscreens. James Weaver is a Java Champion; he is VP of technology at Veriana Networks, and he regularly blogs on his JavaFX Blog (which we frequently cite in Java Today).
Unlike the many articles that concentrate on graphical user interface (GUI) features and application design in JavaFX technology, this article and the next will provide insight into the more technical features such as RSS and Atom tasks, local storage using JavaFX's built-in storage classes, and the use of JavaFX charts.
The article covers:
the RSSTask class
adding the user interface (UI)
local storage
An example program that reads and displays stock quotes is illustrated in the article.
The third article in the series is What's New in JavaFX 1.2 Technology: JavaFX Charts. This article continues the development of the stock quote program from the previous article, and uses it to demonstrate the types of charting functionality that is available in JavaFX 1.2. The article covers:
bar charts
pie charts
line and area charts
bubble and scatter charts
The "What's New in JavaFX 1.2" series demonstrates that very nice looking applications can be developed using a relatively small number of lines of JavaFX code.
A year after its release, Google’s open source Android operating system has become a sensation. After a slow start, it is now available on at least 12 phones, with more devices waiting in the wings. Good news for Android fans, right? Not really, say some developers. A slew of problems have made managing Android apps a "nightmare," they say...
There are three options for Eclipse users interested in exploring GlassFish. They can either use an integrated bundle, install the GlassFish plug-in in an existing Eclipse version, or update an older GlassFish plugin in a stand-alone Eclipse to the latest version. These options are explained below...
One of the significant enhancements made in JSR 315: Java Servlet 3.0, is support for asynchronous processing. With this support, a servlet no longer has to wait for a response from a resource such as a database before its thread can continue processing, that is, the thread is not blocked. Previous to Servlet 3.0, asynchronous support in the Java EE web container was provided in a proprietary way — either through APIs built on top of the Servlet 2.5 API or through non-Servlet APIs or implementations...
Caching of an empty array is a well-known pattern to improve performance. However, it is difficult to use it in generified classes. Out of curiosity, I created a custom implementation of the array creation method based on Array.newInstance. To cache empty arrays, I use synchronized WeakHashMap, which maps any given component type to a weak reference to the corresponding empty array. This is not the fastest way, but it does not lead to memory leaks...
A small JAXB puzzle: how to define a custom element to serialize
Date objects with the TimeZone information? Piece of cake, isn't it? Try
it yourself and you will be surprised with the tricky details.
A friend of mine gave me a JAXB challenge this week: his company
already uses a customization of the xsd:date type in a
legacy code - mapped to a proprietary type instead of the default
Calendar type. Now they also need to represent Calendar objects in their
application schema, so they need to model the date objects as a custom
type. My first thought was about a five minutes hack, just defining an
element based on the xsd:date and use the JAXB
customization to map the new type to the Java Calendar type. After my
five minutes I got few issues...
I've previously blogged about the as(...)
pattern I'm using for my projects. In an email exchange with Taylor Cowan,
I've been made aware that Taylor
has been using this pattern since a quite a few time in his JenaBean
project (Jena
is another big player in the world of RDF and Java). A stripped down
pseudocode from his example...
In the Forums, szczyp wonders about Mixing LCDUI and LWUIT: "Hi. I would like to show some LCDUI dialog first, and then, use LWUIT. Can anyone show some code how to achieve this? I have code that first creates the Alert (timeout is forever) and calls Display.setCurrent(alert); and then Calls Display.init() and..."
sumitmaggo is getting an Exception while running Mobicents Sip Presence Server: "Hi, While running the Mobicents SIP Presence Server, I encountered these Missing Dependencies error and other exception given below. Can you Please tell whats the cause for these errors? I am using JDK 1.5 for running this server..."
And youtianzui has Problems in authentication: 'When I use Configuring Wonderland Authentication (tutorial) to build Authentication. Once I edit the property of Darkstar server. I can't restart it. For example, in the tutorial, it said I must add a "sgs.password.file" int to darkstar.But I can't...'
Our current Spotlight is parts 2 and 3 of the Chris Wright and James Weaver article series "What's New in JavaFX 1.2 Technology." Both articles were published in November on the Sun Developer Network. Part 2 covers RSS, Storage, and Charts. Part 3 covers JavaFX Charts in greater detail. Thanks to Janice Heiss for pointing us to the latest additions to this series.
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