Click here to close now.

Welcome!

Linux Authors: Srinivasan Sundara Rajan, Mike Kavis, Elizabeth White, John Treadway, Pat Romanski

Related Topics: Java, Linux

Java: Article

Desktop Java: JDNC Released as Open Source Project

Desktop Java: JDNC Released as Open Source Project

  • Java Trends - Exclusive Interview with Amy Fowler

    In her extensive "Java Trends" interview with JDJ last month, Sun's Amy Fowler - technical lead of the Java Desktop Network Component (JDNC) project - said that the JDNC API "is targeted at Java developers who aren't necessarily Swing literate" and spoke of her "current fever to make rich Java clients easier to build."

    Now in her latest blog Fowler turns up the heat under the JDNC project, inviting developers to read up about it in her latest article, visit the project site, "and join in on making it happen."

    "After all,": Fowler adds, "who knows better than you [i.e., the developer] what would make your development life easier."

    The article she refers to, published at javadesktop.org, the java.net community for developers of apps with rich client interfaces, confirms that  JDNC has been released as an open source project.

    Fowler explains:

    "This enables us to make the technology available to you early enough so that you can directly shape the vision, the feature set, and even the code. There is still a lot of work to do — the JDNC feature set is far from complete and there remain rough edges, especially in the API, which has not had extensive usage outside of unit testing and markup-driven use-cases. But, that is exactly why we need your involvement."

    "Work with us as we make the technology marry better with tools." she continues, "File bugs and requests for enhancements. Submit code changes. Submit new components. We are anxious to engage directly with you to make Java desktop client development as productive and satisfying as we all know it can be."

    In her article, Fowler writes explains that the need for JDNC was inspired by the realization that, although applications rarely fit neatly into a cookie-cutter mold, many of the apps which enterprise developers need to build do share a common cross-section of functionality.

    "In developing JDNC," she writes,  "we are creating shortcuts for these common features so that developers can get applications up very quickly and then easily enhance them over time. Central to these "shortcuts" is a suite of very high level user-interface (UI) components which leverage Swing, but provide common functionality in a simpler JavaBeans component API."

    "Although these components are indeed the project's namesake, they are only part of the solution," Fowler adds.

    "The most central feature shared by what we call "data-centric, enterprise desktop clients" is connecting users with data — loading it, viewing it, filtering it, editing it, validating it, saving it, and so on. And these days that data is usually tied to a network data source, such as an SQL database, HTTP servlet, or WebService, bringing with it the complexity of networking. JDNC does the heavy lifting here, by providing built-in support for dealing with these network data sources, including multithreaded support (so the UI doesn't block during network operations) and incremental loading — hence, the "Network" in "JDesktop Network Components".

    The application model for a data-centric enterprise client boils down to the life cycle of its data. JDNC promotes this notion by supporting the pattern of clearly separating the data from the UI, but making it very easy to bind the two together. Application data is encapsulated in one or more client-side, UI-independent data models, such as a JDBC RowSet or a JavaBeans component. The data-model interface should be easy to understand and easily configurable from tools, with simple properties to configure its data source, metadata, edit constraints, validation logic, etc., and simple actions for common operations such as load, insert, modify, cache locally (for off-line use), and update (back to server). The UI components are then bound to that local data model (or models) with a simple syntax. From a tool the binding might be created by drawing a line between graphical representations of the two objects. The connection between the UI and the local data model is handled by JDNC's binding mechanism, which automatically handles input validation, type conversion, pushing and pulling values to/from the model, and reporting errors to the user. This frees the developer to focus on their data and how it should be presented in the UI, rather than on the plumbing which glues the two together."

    As JDNC is a work in progress, Fowler concedes that those involved have not yet implemented all the functionality required to realize this vision.

    For example, she notes that support for disconnected RowSets (JSR 114) will be included in the release following 0.5.

    "However, 0.5 does include an experimental version of a data-binding framework for Swing components which, being central to our purpose, should evolve substantially over the course of the project."
    Anyone interested can view JDNC's Feature Summary for detailed information about current and planned features, Fowler adds. 

  • More Stories By Java News Desk

    JDJ News Desk monitors the world of Java to present IT professionals with updates on technology advances, business trends, new products and standards in the Java and i-technology space.

    Comments (3) View Comments

    Share your thoughts on this story.

    Add your comment
    You must be signed in to add a comment. Sign-in | Register

    In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


    Most Recent Comments
    Will 07/06/04 01:56:27 AM EDT

    Interested in a better alternative to JDNC?
    - more mature
    - more features
    - production stable

    Take a look at JForm!
    http://jform.coderight.nl

    Will

    Greg Leisner 06/25/04 08:42:40 AM EDT

    I'm reworking a legacy Java app that uses a very hacked-up version of SUN's original JTreeTable. Replacing those classes is on my todo list. I'm looking forward to adding this library to the app and cleaning it up alot!

    Since the modified class has been in use for 5 years, I hope to be able to provide useful feedback.

    Thanks to all who worked on this.

    Gerald Bauer 06/24/04 11:31:45 PM EDT

    Just to let you know I've started a JDNC mailinglist over at Yahoo! Groups. If anyone is interested in JDNC I invite you to join the discussion and ask questions or share tips and tricks about Sun's new Java Desktop Network Components initiative.

    Find out more @ http://groups.yahoo.com/group/jdnc

    - Gerald

    @ThingsExpo Stories
    SYS-CON Events announced today that Ciqada will exhibit at SYS-CON's @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Ciqada™ makes it easy to connect your products to the Internet. By integrating key components - hardware, servers, dashboards, and mobile apps - into an easy-to-use, configurable system, your products can quickly and securely join the internet of things. With remote monitoring, control, and alert messaging capability, you will meet your customers' needs of tomorrow - today! Ciqada. Let your products take flight. For more inform...
    SYS-CON Events announced today that GENBAND, a leading developer of real time communications software solutions, has been named “Silver Sponsor” of SYS-CON's WebRTC Summit, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. The GENBAND team will be on hand to demonstrate their newest product, Kandy. Kandy is a communications Platform-as-a-Service (PaaS) that enables companies to seamlessly integrate more human communications into their Web and mobile applications - creating more engaging experiences for their customers and boosting collaboration and productiv...
    SYS-CON Events announced today that BroadSoft, the leading global provider of Unified Communications and Collaboration (UCC) services to operators worldwide, has been named “Gold Sponsor” of SYS-CON's WebRTC Summit, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. BroadSoft is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over their Internet Protocol networks. The Company’s core communications platform enables the delivery of a range of enterprise and consumer calling...
    VoxImplant has announced full WebRTC support in the newest versions of its Android SDK and iOS SDK. The updated SDKs, which enable audio and video calls on mobile devices, are now compatible with the WebRTC standard to allow any mobile app to communicate with WebRTC-enabled browsers, including Google Chrome, Mozilla Firefox, Opera, and, when available, Microsoft Spartan. The WebRTC-updated SDKs represent VoxImplant's continued leadership in simplifying the development of real-time communications (RTC) services for app developers. VoxImplant (built by Zingaya, the real-time communication servi...
    The IoT Bootcamp is coming to Cloud Expo | @ThingsExpo on June 9-10 at the Javits Center in New York. Instructor. Registration is now available at http://iotbootcamp.sys-con.com/ Instructor Janakiram MSV previously taught the famously successful Multi-Cloud Bootcamp at Cloud Expo | @ThingsExpo in November in Santa Clara. Now he is expanding the focus to Janakiram is the founder and CTO of Get Cloud Ready Consulting, a niche Cloud Migration and Cloud Operations firm that recently got acquired by Aditi Technologies. He is a Microsoft Regional Director for Hyderabad, India, and one of the f...
    SYS-CON Events announced today that Optimal Design, an Internet of Things solution provider, will exhibit at SYS-CON's Internet of @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Optimal Design is an award winning product development firm offering industrial design and engineering services to the consumer, medical, and defense markets.
    SYS-CON Events announced today that Vicom Computer Services, Inc., a provider of technology and service solutions, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. They are located at booth #427. Vicom Computer Services, Inc. is a progressive leader in the technology industry for over 30 years. Headquartered in the NY Metropolitan area. Vicom provides products and services based on today’s requirements around Unified Networks, Cloud Computing strategies, Virtualization around Software defined Data Ce...
    What exactly is a cognitive application? In her session at 16th Cloud Expo, Ashley Hathaway, Product Manager at IBM Watson, will look at the services being offered by the IBM Watson Developer Cloud and what that means for developers and Big Data. She'll explore how IBM Watson and its partnerships will continue to grow and help define what it means to be a cognitive service, as well as take a look at the offerings on Bluemix. She will also check out how Watson and the Alchemy API team up to offer disruptive APIs to developers.
    The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal today!
    With IoT exploding, massive data will transform businesses with opportunities to monetize almost anything that can be measured. In this C-Level Roundtable Discussion at @ThingsExpo, Brendan O’Brien, Aria Systems Co-founder and Chief Evangelist, will lead an expert panel of consultants, thought leaders and practitioners who will look at these new monetization trends, discuss the implications, and detail lessons learned from their collective experience. Finally, the panel will point the way forward for enterprises who wish to leverage the resulting complex recurring revenue models, adding valu...
    How is unified communications transforming the way businesses operate? In his session at WebRTC Summit, Arvind Rangarajan, Director of Product Marketing at BroadSoft, will discuss how to extend unified communications experience outside the enterprise through WebRTC. He will also review use cases across different industry verticals. Arvind Rangarajan is Director, Product Marketing at BroadSoft. He has over 19 years of experience in the telecommunications industry in various roles such as Software Development, Product Management and Product Marketing, applied across Wireless, Unified Communic...
    Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? Join this panel of experts as they peel away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you’ll have no problem filling in your buzzword bingo cards.
    Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, will discuss how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at the same time reduce Time to Market (TTM) by using plug and play capabilities offered by a robust I...
    @ThingsExpo has been named the Top 5 Most Influential Internet of Things Brand by Onalytica in the ‘The Internet of Things Landscape 2015: Top 100 Individuals and Brands.' Onalytica analyzed Twitter conversations around the #IoT debate to uncover the most influential brands and individuals driving the conversation. Onalytica captured data from 56,224 users. The PageRank based methodology they use to extract influencers on a particular topic (tweets mentioning #InternetofThings or #IoT in this case) takes into account the number and quality of contextual references that a user receives.
    SYS-CON Events announced today that Dyn, the worldwide leader in Internet Performance, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Dyn is a cloud-based Internet Performance company. Dyn helps companies monitor, control, and optimize online infrastructure for an exceptional end-user experience. Through a world-class network and unrivaled, objective intelligence into Internet conditions, Dyn ensures traffic gets delivered faster, safer, and more reliably than ever.
    IoT is still a vague buzzword for many people. In his session at @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, discussed the business value of IoT that goes far beyond the general public's perception that IoT is all about wearables and home consumer services. He also discussed how IoT is perceived by investors and how venture capitalist access this space. Other topics discussed were barriers to success, what is new, what is old, and what the future may hold. Mike Kavis is Vice President & Principal Cloud Architect at Cloud Technology Pa...
    The only place to be June 9-11 is Cloud Expo & @ThingsExpo 2015 East at the Javits Center in New York City. Join us there as delegates from all over the world come to listen to and engage with speakers & sponsors from the leading Cloud Computing, IoT & Big Data companies. Cloud Expo & @ThingsExpo are the leading events covering the booming market of Cloud Computing, IoT & Big Data for the enterprise. Speakers from all over the world will be hand-picked for their ability to explore the economic strategies that utility/cloud computing provides. Whether public, private, or in a hybrid form, clo...
    The WebRTC Summit 2015 New York, to be held June 9-11, 2015, at the Javits Center in New York, NY, announces that its Call for Papers is open. Topics include all aspects of improving IT delivery by eliminating waste through automated business models leveraging cloud technologies. WebRTC Summit is co-located with 16th International Cloud Expo, @ThingsExpo, Big Data Expo, and DevOps Summit.
    As Marc Andreessen says software is eating the world. Everything is rapidly moving toward being software-defined – from our phones and cars through our washing machines to the datacenter. However, there are larger challenges when implementing software defined on a larger scale - when building software defined infrastructure. In his session at 16th Cloud Expo, Boyan Ivanov, CEO of StorPool, will provide some practical insights on what, how and why when implementing "software-defined" in the datacenter.
    While not quite mainstream yet, WebRTC is starting to gain ground with Carriers, Enterprises and Independent Software Vendors (ISV’s) alike. WebRTC makes it easy for developers to add audio and video communications into their applications by using Web browsers as their platform. But like any market, every customer engagement has unique requirements, as well as constraints. And of course, one size does not fit all. In her session at WebRTC Summit, Dr. Natasha Tamaskar, Vice President, Head of Cloud and Mobile Strategy at GENBAND, will explore what is needed to take a real time communications ...