Welcome!

Java IoT Authors: Liz McMillan, Elizabeth White, Pat Romanski, Yeshim Deniz, ManageEngine IT Matters

Related Topics: Java IoT

Java IoT: Press Release

OpenXava 4.9 Released

Java Framework for Rapid Development of Enterprise Web Applications

OpenXava is an AJAX Java Framework for Rapid Development of Enterprise Web Applications.

In OpenXava you only have to write the domain classes in plain Java to get a web application ready for production.

OpenXava 4.9 has many new interesting features such as:

  • We have improved the list with better behavior, new filter options and some style improvements.
  • PDF reports now are better adjusted, so most automatic reports are ready to be used.
  • 'My reports' has more options and it's easier to use. Now you can use your OpenXava application as a reporting tool.
  • Many other improvements and bug fixes.

We recommend you to download it and upgrade your OpenXava applications. Look at the migration instructions.

List improvements

These are the improvement for list and collections:

  • Combos and textfields in list filtering adapt their widths to the column and they are always completely visible.
  • 'in group' and 'not in group' (the 'in' of SQL) allowed to filter in list, collections and 'My reports'.
  • Link to hide filter is in the filter row itself.
  • Links to show and hide the filter are only visible in customization mode. Thus we have a less cluttered user interface.
  • New icons for customizing list and collections.
  • Paging in list and collections allows 12 rows per page. Useful if you have a row per month.

Now list mode of OpenXava is still better.

Improvements in automatic PDF reports

These are the automatic PDF reports improvements:

  • Algorithm to adjust columns optimized: right column is better adjusted and columns that not fit are dropped.
  • Width of columns is calculated from the real content, not from declaration.
  • Long labels can use several lines if needed.
  • Reports with no data show a page with an informative message instead of an empty report.
  • Reports use qualified labels for column header, just as list mode.
  • Detail line height optimized.

In this way, more automatic reports are ready to be used, therefore the programmers have to create less reports by hand.

Improvements in 'My reports'

These are the 'My reports' improvements:

  • The combo for adding columns only shows until second level properties by default.
  • Labels instead of internal names in combo for adding new columns.
  • Initial condition and ordering are populated from the current list.
  • Duplicate columns allowed to filter by range or complex conditions, though only one is shown in the report.
  • Dialog title of column editing improved.
  • Refactoring of 'My reports' code (CustomReport renamed to MyReport) that produces the loss of current stored user reports.


Thanks to these improvements in 'My reports' and PDF generation your users can use your OpenXava application as a tool for creating their own reports.

Others improvements

We have done a lot of improvements in other areas:

  • @AssertTrue message can be customized, even values of properties of the current entity can be used.
  • When a ConstraintViolationException is thrown the message to the user is obtained from the constraint definition.
  • @Size validation annotations produces a more significative message.
  • Support for multivalue editors with checkboxes.
  • It's possible to exclude the HTML head code when calling a module using htmlHead=false as argument.
  • Order for properties when no @View is defined is consistent for all Java vendors.
  • Subcontrollers are not shown when they have no action.
  • Style of subcontrollers improved.
  • Subcontrollers behavior improved: now they are closed on clicking again on the button or outside the popup menu.
  • Code for buttonBar.jsp and subButton.jsp downgraded to Java 1.4.
  • New TypicalNewOnInit controller that starts the module in detail mode ready to create a new entity.
  • New methods addDays(), lastOfYear(), lastOfMonth() and firstOfMonth() added to Dates.

Bug fixes

Though this is not a maintenance version we have done some fixes:

  • Fix: Methods setYear(), setMonth() and setDay() of Dates do not work.
  • Fix: Wrong OpenXava version number when using some third party libraries.
  • Fix: Filtering in list by Timestamp or DATETIME does not allows to specify the time part.
  • Fix: Totals in automatic PDF reports use two lines when the number is too large.
  • Fix: Little vertical white bar in subcontroller button.

Download OpenXava 4.9

More Stories By Javier Paniza

Javier Paniza is the project lead for OpenXava project. He works as software developer at Gestión 400, a software company for public administration in Spain. He has been developing with Java Enterprise since 1998. Also he has been J2EE mentor for development teams in banking projects.

@ThingsExpo Stories
Artificial intelligence, machine learning, neural networks. We’re in the midst of a wave of excitement around AI such as hasn’t been seen for a few decades. But those previous periods of inflated expectations led to troughs of disappointment. Will this time be different? Most likely. Applications of AI such as predictive analytics are already decreasing costs and improving reliability of industrial machinery. Furthermore, the funding and research going into AI now comes from a wide range of com...
SYS-CON Events announced today that EnterpriseTech has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. EnterpriseTech is a professional resource for news and intelligence covering the migration of high-end technologies into the enterprise and business-IT industry, with a special focus on high-tech solutions in new product development, workload management, increased effi...
In this presentation, Striim CTO and founder Steve Wilkes will discuss practical strategies for counteracting fraud and cyberattacks by leveraging real-time streaming analytics. In his session at @ThingsExpo, Steve Wilkes, Founder and Chief Technology Officer at Striim, will provide a detailed look into leveraging streaming data management to correlate events in real time, and identify potential breaches across IoT and non-IoT systems throughout the enterprise. Strategies for processing massive ...
SYS-CON Events announced today that Conference Guru has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. A valuable conference experience generates new contacts, sales leads, potential strategic partners and potential investors; helps gather competitive intelligence and even provides inspiration for new products and services. Conference Guru works with conference organi...
SYS-CON Events announced today that Cloud Academy named "Bronze Sponsor" of 21st International Cloud Expo which will take place October 31 - November 2, 2017 at the Santa Clara Convention Center in Santa Clara, CA. Cloud Academy is the industry’s most innovative, vendor-neutral cloud technology training platform. Cloud Academy provides continuous learning solutions for individuals and enterprise teams for Amazon Web Services, Microsoft Azure, Google Cloud Platform, and the most popular cloud com...
SYS-CON Events announced today that CA Technologies has been named "Platinum Sponsor" of SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business - from apparel to energy - is being rewritten by software. From planning to development to management to security, CA creates software that fuels transformation for companies in the applic...
SYS-CON Events announced today that TMC has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo and Big Data at Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Global buyers rely on TMC’s content-driven marketplaces to make purchase decisions and navigate markets. Learn how we can help you reach your marketing goals.
Internet of @ThingsExpo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devic...
"MobiDev is a Ukraine-based software development company. We do mobile development, and we're specialists in that. But we do full stack software development for entrepreneurs, for emerging companies, and for enterprise ventures," explained Alan Winters, U.S. Head of Business Development at MobiDev, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
SYS-CON Events announced today that IBM has been named “Diamond Sponsor” of SYS-CON's 21st Cloud Expo, which will take place on October 31 through November 2nd 2017 at the Santa Clara Convention Center in Santa Clara, California.
SYS-CON Events announced today that Telecom Reseller has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
We build IoT infrastructure products - when you have to integrate different devices, different systems and cloud you have to build an application to do that but we eliminate the need to build an application. Our products can integrate any device, any system, any cloud regardless of protocol," explained Peter Jung, Chief Product Officer at Pulzze Systems, in this SYS-CON.tv interview at @ThingsExpo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA
Multiple data types are pouring into IoT deployments. Data is coming in small packages as well as enormous files and data streams of many sizes. Widespread use of mobile devices adds to the total. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists looked at the tools and environments that are being put to use in IoT deployments, as well as the team skills a modern enterprise IT shop needs to keep things running, get a handle on all this data, and deliver...
The current age of digital transformation means that IT organizations must adapt their toolset to cover all digital experiences, beyond just the end users’. Today’s businesses can no longer focus solely on the digital interactions they manage with employees or customers; they must now contend with non-traditional factors. Whether it's the power of brand to make or break a company, the need to monitor across all locations 24/7, or the ability to proactively resolve issues, companies must adapt to...
SYS-CON Events announced today that Enzu will exhibit at SYS-CON's 21st Int\ernational Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Enzu’s mission is to be the leading provider of enterprise cloud solutions worldwide. Enzu enables online businesses to use its IT infrastructure to their competitive advantage. By offering a suite of proven hosting and management services, Enzu wants companies to focus on the core of their ...
In his session at @ThingsExpo, Eric Lachapelle, CEO of the Professional Evaluation and Certification Board (PECB), provided an overview of various initiatives to certify the security of connected devices and future trends in ensuring public trust of IoT. Eric Lachapelle is the Chief Executive Officer of the Professional Evaluation and Certification Board (PECB), an international certification body. His role is to help companies and individuals to achieve professional, accredited and worldwide re...
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend 21st Cloud Expo October 31 - November 2, 2017, at the Santa Clara Convention Center, CA, and June 12-14, 2018, at the Javits Center in New York City, NY, and learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
With the introduction of IoT and Smart Living in every aspect of our lives, one question has become relevant: What are the security implications? To answer this, first we have to look and explore the security models of the technologies that IoT is founded upon. In his session at @ThingsExpo, Nevi Kaja, a Research Engineer at Ford Motor Company, discussed some of the security challenges of the IoT infrastructure and related how these aspects impact Smart Living. The material was delivered interac...
IoT solutions exploit operational data generated by Internet-connected smart “things” for the purpose of gaining operational insight and producing “better outcomes” (for example, create new business models, eliminate unscheduled maintenance, etc.). The explosive proliferation of IoT solutions will result in an exponential growth in the volume of IoT data, precipitating significant Information Governance issues: who owns the IoT data, what are the rights/duties of IoT solutions adopters towards t...
New competitors, disruptive technologies, and growing expectations are pushing every business to both adopt and deliver new digital services. This ‘Digital Transformation’ demands rapid delivery and continuous iteration of new competitive services via multiple channels, which in turn demands new service delivery techniques – including DevOps. In this power panel at @DevOpsSummit 20th Cloud Expo, moderated by DevOps Conference Co-Chair Andi Mann, panelists examined how DevOps helps to meet the de...