We have a solution for Oracle Forms developers which allows integration of JVx applications and screens directly in your Oracle Forms screen/window. It's an awesome feature and works like a charm but had some limitations with repaints.

Let's have a look

Redraw problem (menu)

Redraw problem (window)

We fixed the problem with our current version

No redraw issues (menu)

No redraw issues (window)

It's was very tricky to solve the problem and it's well known. Our solution will work with other Swing based components as well.

Jasperreports is a wonderful Reporting library/product. It's OpenSource and great for commercial products. There are several products like JasperReports Server and Jaspersoft Studio. Especially the Jaspersoft Studio is very useful for creating reports with a WYSIWYG editor. Simply use the tool and create your reports.

The most insteresting part is the integration of Jasperreports in a JVx application. It's super easy to start Jasperreports programmatically:

Our example was created with Jasperreports 6.3.1. The library has some dependencies:

• Apache Commons Logging
• Apache Commons Digester 2
• Apache Commons Collections
• Apache Commons BeanUtils
• iText 2.1.7 (unpatched) or iText 2.1.7.js5 (jaspersoft patched)

A complete Eclipse example project can be found here. It connects to a HSQLDB with following tables:

The final step for the integration into a JVx application is the integration in a life-cycle object, e.g.

We're happy to announce that JVx 2.6 is available.

What's new?

• Configuration via ServiceLoader

  It's now possible to use the ServiceLoader to configure an application (IApplicationSetup). It's enough to add a library to the classpath. It's not needed to extend anything.

• Save bounds

  The Swing launcher now restores last frame bounds. The size and position of your application will be automatically saved and restored after an application restart. This feature takes care of multi monitor environments.

• Better XmlNode API
  public XmlNode get(int pIndex)
  public XmlNode getFirstTextNode() // Getting the root node in xml file
  public void addAll(Collection<XmlNode> pNodes)
  public void insertAll(int pIndex, Collection<XmlNode> pNodes)
  public void setNodes(List<XmlNode> pNodes) // replaces setSubNodes
  public List<XmlNode> getNodes() // gets sub nodes never null and readonly
  public List<XmlNode> getNodes(short pType) // Gets sub nodes of given type
  public XmlNode remove(int pIndex)
• Session states

  It's now possible to detect whether a session is initializing or destroying/expiring.

• Message class improvements

  Simple support for Yes, No, Cancel messages.

• preAuthentication support

  It's now possible to configure your sessions before authenticating without custom security managers.

• BFILE and lazy loading

  New support for BFILE database columns and improved lazy loading mechanism.

• Many Bugfixes

The full changelog is available here.

VisionX 2.4 was released yesterday! It's the biggest update since 1.5. We've spent more time for developing and testing than ever before. The new version has power under the hood. It contains everything which is needed to customize VisionX for your needs. It's possible to create your own VisionX. We have a great set of AddOns which will improve the quality of your applications and some very useful new Features.

What's new?

• HTML5 Live Reload

  It's now possible to update the application in the browser automatically after design changes. The live preview wizard got a new option for this feature:

  

  Live reload option

• One-click HTML5 live preview

  The application menu got a new icon. A single click is enough to show the application in the web browser.

  

  One-click live preview

• VisionX Menu

  The VisionX menu in the application has two new items:

  

  VisionX application menu

  The modules screen is a complete new feature and the Live preview is now available without leaving the application.

• Module management

  It's now possible to manage application modules. Simply install a module from the solution store or create your own re-usable application modules. The installation is super easy with our new modules screen:

  

  Super easy module installation

• Data Links

  The Designer got a new group with the name Data Links:

  

  Data Links

  All elements in the Data Links group depend on data and will update the shown value automatically on data changes.

  • The Label Control will show the current value of a specific column, as Label instead of an Editor.
  • The Selection Button will show a popup with possible values for a specific column.
  • The Filter Control requires the Profiles AddOn and allows an application user to apply and save custom filter settings, e.g. filter custom columns
• Application frame automatically saves the last position and your application will be shown at the same position after a restart.

  The Profiles AddOn makes it possible to save also the frames within the application. Your users will love it because they can save their own desktop and continue the work after an application start.

• Remove HTML5

  It's possible to create smaller application bundles if you remove the HTML5 feature from the bundle, via Deployment Wizard:

  

  Remove HTML5

• Customize screen generators

  It's super easy to use your own screen generators:

  

  Custom screen generators

• Multiple storages with same database table

  It's now possible to add multiple storages for the same database table. This was a limitation in earlier versions of VisionX.

All customers will find the new version in their download area!

This is a short announcement of VisionX 2.4. We're near to the finishing line and will release VisionX 2.4 in December. It's an awesome release with a big number of changes and great new features.

VisionX 2.4 is not a real Feature Release but as always, we have great things on board. The focus was on "modularity". This has nothing to do with JDK 9 or Jigsaw! With VisionX 2.4 it'll be super easy to customize VisionX for your needs or to "create your own VisionX". We offer some great new Modules and AddOns.

Some impressions

Create applications without HTML5		Super easy module installation
New components as Data Links		Module: User Filter
Standard Screen generator wizard		Customized screen generator wizard

VisionX will be shipped with Vaadin 7.7 and latest versions of JVx and sub projects.
We offer some great Modules and AddOns like Maintenance management and User Profiles.

With User Profiles, it'll be possible to save the application state per User. This means that the position of screens can be saved as well as divider positions of split panels or it'll be possible to configure visible columns of grids.

This was a very short overview of VisionX 2.4, but I guess you'll like it!

With current pfSense 2.3.2 and APU2C4 it's not possible to read the CPU temperature of. The problem isn't new but it's not solved in official images.

I found a solution for the problem in this forum (Thanks to Stephan).

It wasn't tricky, but if you want the short story:

1. Download the changed kernel module
2. Extract the archive and copy the amdtemp.ko file to your box, to /root
3. Execute following commands:
   kldunload amdtemp
   cp /root/amdtemp.ko /boot/kernel/
   kldload /boot/kernel/amdtemp.ko

After this steps, you'll see the current temperature in the Dashboard view.

HANA Express is available for some days. HANA is the In-Memory Database solution of SAP.

What is HANA Express?

SAP HANA, express edition is a streamlined version of SAP HANA that can run on laptops and other resource-constrained hosts, such as a cloud-hosted virtual machine, for free up to 32G of memory use.

reference: https://go.sap.com/developer/topics/sap-hana-express.html

We wrote an article about our HANA experiments in December 2014. We had a test account for the online HANA. Our tests were successful but we weren't convinced from the system because it was slow and had many JDBC driver problems. Our bug reports were never answered.

But we never give up and the Express edition was interesting for us. We thought it might be worth some hours for our R&D team. The result is awesome!

We think that VisionX is the best tool for application development with HANA databases. Your web application is ready in 1 minute without coding!

Some details?

The installation of the Express edition wasn't tricky. The documentation is straight forward. The database is up and running in some minutes.

We had some problems with JDBC driver because it wasn't available as separate download and we didn't find any documentation. But it was part of the HANA plugin for Eclipse. Not that easy, but it was part of a jar file: com.sap.ndb.studio.jdbc_2.3.8.jar.

The next tricky thing was the JDBC connect string: jdbc:sap://hxehost:30013/?currentschema=System. The username was SYSTEM.

With all this information, it was super easy to create an application with VisionX for HANA express. We guess it makes no difference if you use HANA or HANA express.

How it works? Check the video. It's from 2014 but still impressive.

The current JDBC driver works much better than in 2014 and the performance of the database is great - compared to 2014.

If you're interested in more details, write a comment

Vaadin 7.7.0 is out since 2016-08-24 and 7.7.1 since 2016-09-14.

We're happy to announce that our vaadin UI is based on vaadin 7.7.1 since 2016-09-16. Use our nightly builds or checkout the repository.

And the maven snapshots:

Your feedback is appreciated

We have a brand new AddOn for you! It's simply awesome.

Imagine you have a large application with many screens and life-cycle objects. The deployent date is tomorrow. All manual tests today were successful. You leave the office and your colleague updates the database and doesn't tell you something about the changes. The deployment could be a destroyment without retesting!

Sure, a manual test of application functionality is great and also automatic UI tests are helpful. But both tests need some time and a test tool for automatic UI tests. We had the simple idea that a great improvement would be an automatic screen and life-cycle object test by an ANT task.

You could reduce error sources if it's guaranteed that a screen can be opened at runtime! This means that the object in the life-cycle object will work as well. But it's also possible that you have some database access objects in the life-cycle object, without GUI references, e.g. for Reporting purposes. Such objects can't be found with simple screen open tests.

Our idea was that we could check all database objects from your life-cycle objects automatically and we could start the application in a headless mode to open/close your screens. Both checks could be executed as ANT task before war file creation. Sounds interesting?

We have an AddOn with above features for VisionX.

Here are some screenshots of the build results:

Project view with ANT results

The life-cycle object MasterData contains the DBStorage errorData. The storage uses the write-back table ERRORDATA wich isn't available in the database. The quality check shows:

Only the ANT output:

Quality checks ANT results

The life-cycle object had an error, but the MasterDataWorkScreen works because errorData wasn't used while opening the screen.

The screens SimpleErrorWorkScreen and ShowErrorWorkScreen can't be opened because initialization failed. The life-cycle objects work without problems!

The checks are fast and can be executed without GUI. The application will be started with headless UI and it acts like any other JVx application with all supported features.

The AddOn is a massive improvement for your quality requirements.

We're happy to announce that all our projects are available as Maven artifacts.
Not all of our projects are public and aren't available in public Maven repositories, but we offer our own nexus for all this projects.

Which projects aren't public?

• Vaadin Charts UI
• Vaadin responsive application frame
• Application client
• Application server
• Application Services
• JavaFX mobile UI
• Oracle Forms extension

We provide snapshot and release artifacts. All other - public - projects are available via maven central as release or snapshot artifacts.

• JVx
• JVx EE
• Vaadin UI
• JavaFX UI
• Headless UI
• Online help
• JVx mobile

Our private Maven repository is available on a subscription basis. This doesn't mean that our private projects aren't open source projects, but we don't offer snapshot or release artifacts for them!