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Java IoT Authors: Elizabeth White, Mike Raia, Roger Strukhoff, David Paquette, Cloud Best Practices Network

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Java IoT: Press Release

OpenXava 5.0 Released

Rapid Development for Java

OpenXava is an 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.
This 5.0 release has a new look & feel, includes module navigation, user login/logout (so you do not need Liferay anymore), inline editable collections (just like a spreadsheet), a new editor to attach files to your entity, and many many more things.

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

New look & feel

Just have a look at the demo to see the new look & feel.

Module navigation

At last, your OpenXava applications will include menus to access the modules:


So, you do not need use Liferay for providing module navigation to your application, a simple Tomcat is enough. Anyways, you can still deploy your application on Liferay where these new menus are not shown.

User login

Now your application will ask your user to sign in:

So, you do not need to use Liferay to provide user login/logout. Anyways, If you deploy on Liferay this login/logout mechanism will not be used. Moreover, you can disable it if you wish, for testing or for public applications.

Editable collections

In OpenXava 5.0 you can have collections like this one:

Where the user can modify any property of any element in any moment, and where all collection elements are saved at once when the main entity is saved.
These collections are defined using @ElementCollection, a new annotation of JPA 2 specification. These are collections of embeddable object (not entities).
For defining an element collection just use @ElementCollection instead of @OneToMany: Download OpenXava 5.0

@ElementCollection
@ListProperties("product.number, product.description," +
    "product.unitPrice, quantity, " +
    "amount[invoice.sum, invoice.vat, invoice.total]")
private Collection<InvoiceDetail> details;

And define the class for the element collection as @Embeddable instead of @Entity:

@Embeddable
public class InvoiceDetail {

The generated user interface for this code will be:


You can see how these collections support calculated properties, references, totals, etc.

Editor to attach files

Until now to attach files to your entities you should create your own editor. That is no longer needed, now you can use the new FILE stereotype, thus:

@Stereotype("FILE")
@Column(length=32)
private String trailer;

To get this:

It can be configured to store the files in the database or the file system.

Others improvements

We have done a lot of improvements in other areas:

  • New renderer engine to layout the user interface.
  • Look and feel of date editor improved.
  • Several reports in one PDF with the new JasperConcatReportBaseAction.
  • @Collapsed annotation to initiate collections and references with the frame closed. Also allowed in XML components.
  • New NoCustomizeList controller for disabling list customization to a specific module.
  • The user can share a report of 'My reports' with all other users.
  • New Addons project added to distribution to contain extended features outside of the OpenXava core.
  • New InvoiceDemo project added to distribution.
  • Groovy upgraded to 2.2.2.
  • JasperReports upgraded to 5.5.1.
  • DWR upgraded to 2.0.10.
  • JSTL upgraded to 1.2 using Apache Standard Taglibs 1.2.1.
  • JavaMail upgraded to 1.5.1.
  • Upgrade of commons libraries to: beanutils 1.8.0, logging 1.1.1, digester 2.1, codec 1.9, fileupload 1.3.1, io 2.4, lang 2.6, validator 1.4.0.
  • Upgrade to Servlet 2.5 and JSP 2.1.
  • Added Commons Lang3 3.2.1 library.
  • Tomcat 7 included in distribution.
  • Dropped IE6, IE7 and IE8 support.
  • Using module.jsp to execute modules from browser is no longer supported.
  • Dropped Java 5 support, from now on Java 6 or better is required.
  • Dropped WebSphere 6.1 and WebSphere Portal 6.1 support.
  • Dropped Tomcat 5.5 support.
  • Removed jakarta-oro library, only used by older commons-validator.
  • ejb.jar and jpa.jar added to WEB-INF/lib to facilitate deploying in Tomcat.
  • MiEscuela project removed from distribution.
  • AccessTracking removed from OpenXava distribution.
  • Objects class from org.openxava.util removed, you can use XObjects instead.
  • New is/setCollapsed() methods in View to close a frame of a reference or collection programmatically.
  • Added validateMinimum() and validateMaximum() to CollectionElementViewBaseAction.
  • New getPopupPDFPageCount() method in ModuleTestBase.
  • New methods setValueInCollection(), assertEditableInCollection() and assertEditableInCollection() in ModuleTestBase.
  • New method noFirstTokenWithoutFirstDelim() in Strings.
  • When @Digits is specified default scale is ignored even if fraction is not specified.
  • Performance of delete action in detail mode action improved.
  • Improved behavior with READ COMMITED isolation level.
  • New commit() and rollback() methods in BaseAction.
  • Methods Is.emptyString() and Is.emptyStringAll() allow infinite number of arguments.
  • clearCondition() method removed from ModuleTestBase.

Bug fixes

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

  • Fix: Double border when using .ox-frame in the CSS with new renderer.
  • Fix: Totals in collections frames are not shown with the new renderer.
  • Fix: assertListRowCount() method from ModuleTestBase fails when the value of summationInList property is false.
  • Fix: Subcontrollers fails in split mode.
  • Fix: Incorrect encoding in emails sent by Emails class.
  • Fix: Members inside @NoFrame are not aligned with the outside members.
  • Fix: Incorrect default size for java.lang.Boolean.
  • Fix: View broken on reload if the module is inside a HTML table.
  • Fix: Simple property after group without ; does not layout correctly.
  • Fix: A reference with @NoFrame inside a group produces an ugly layout.
  • Fix: Error messages for @Size in collections show 'Element' in English always, even if English is not used.
  • Fix: Top field with little margin on top with the new renderer.
  • Fix: Html id for frames not correct for references with new renderer.
  • Fix: Properties aligned by column when it should not in the new renderer.
  • Fix: Property icons are not aligned correctly with the new renderer.
  • Fix: Scale defined in default-size.xml is ignored when formatting.
  • Fix: Scale definition from @Column and @Digits is ignored when formatting.
  • Fix: The @LabelStyle annotation is not supported with the new renderer.

Download OpenXava 5.0

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.

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