openxava
Blog

August 2, 2022

Video for lesson 18 of OpenXava course

In this new lesson of our course we're going to start the part of the course devoted to validations, that is how to verify that the data the user enters is correct. We'll start with the @EntityValidator annotation to add validations at entity level.  Watch the video.

July 25, 2022

OpenXava in Chinese

Historically OpenXava documentation has been available in English, Spanish, Russian, French and Chinese. However, the latter three were contributed by the community and no longer maintained. Therefore, newcomers using Russian, French or Chinese found documentation obsolete and that did not match with the current OpenXava version, producing a less than optimal learning experience. To fix this, we have decided to completely remove the Russian and French versionS, so Russian and French developers can use the always up-to-date English docs. 

About Chinese, we're translating from scratch directly from the Spanish (up-to-date) documentation to Chinese by a member of our team that is native in both languages. Moreover, we're going to maintain Chinese documentation up-to-date, at the same level as English and Spanish counterparts.

Also, we have translated the complete openxava.org site to Chinese and version 7.0 will have all labels and messages included in OpenXava in Chinese.

We already have many lessons from the OpenXava course translated to Chinese, if you know Chinese we invite you to have a look.  

June 27, 2022

Video for lesson 17 of OpenXava course

In this new lesson of our course, you'll learn to use the Hibernate @Formula annotation in your OpenXava entities, so you can map a SQL statement to a property. This allows you to have properties with a calculation where you can search and filter in list mode. Watch the video.

June 7, 2022

Video for lesson 16 of OpenXava course

Calculated properties, those with just a getter, allows you to define any imaginable calculation using Java, but given that they have not a column in the database, your user cannot search or sort for that property. A way to solve this problem is to have a persistent property too, and synchronizing both, persistent and calculated, using a JPA callback method. It's not so difficult, watch the video.

May 30, 2022

Video for lesson 15 of OpenXava course

Until now we have used @DefaultValueCalculator to calculate the next number of invoice or order in our small invoicing application, but this does not work in multiuser applications. To solve this problem, we're going to change it for a JPA callback method, using @PrePersist in this case. Watch the video.

May 23, 2022

Video for lesson 14 of OpenXava course

May 16, 2022

Video for lesson 13 of OpenXava course

May 9, 2022

Video for lesson 12 of OpenXava course

May 2, 2022

Video for lesson 11 of OpenXava course

April 26, 2022

Software for hospitals with OpenXava

April 18, 2022

Video for lesson 10 of OpenXava course

April 11, 2022

Video for lesson 9 of OpenXava course

April 4, 2022

XavaPro 6.6.3 released

March 30, 2022

OpenXava 6.6.3 released

March 7, 2022

From RPG to Java with OpenXava

March 2, 2022

View inheritance to reuse UI definition

February 24, 2022

JPA inheritance and agile development

February 10, 2022

XavaPro 6.6.2 released

February 8, 2022

OpenXava 6.6.2 released

January 18, 2022

From Struts 2 MVC to OpenXava

December 13, 2021

XavaPro 6.6.1 released

December 9, 2021

OpenXava 6.6.1 released

November 15, 2021

Business software in the cloud with Java

November 3, 2021

XavaPro 6.6 released

October 28, 2021

OpenXava 6.6 released

October 18, 2021

OpenXava for teaching

September 20, 2021

Refine the user interface with OpenXava

September 13, 2021

From COBOL to Java with OpenXava

September 7, 2021

Video for lesson 3 of OpenXava course

August 9, 2021

Potable water in Ecuador

July 28, 2021

Video for lesson 2 of OpenXava course

July 16, 2021

XavaPro 6.5.3 released

July 13, 2021

OpenXava 6.5.3 released

June 21, 2021

An ERP for the metal industry

June 16, 2021

Official YouTube channel for OpenXava

June 4, 2021

XavaPro 6.5.2 released

June 1, 2021

OpenXava 6.5.2 released

May 13, 2021

Looking for an OpenXava developer in Valle del Cauca

May 10, 2021

Ministry of Finance of Nicaragua with OpenXava

April 15, 2021

XavaPro 6.5.1 released

April 14, 2021

OpenXava 6.5.1 released

March 23, 2021

RFID solutions with OpenXava

March 11, 2021

Looking for a OpenXava developer in Misiones

March 2, 2021

XavaPro 6.5 released

February 24, 2021

OpenXava 6.5 released

January 19, 2021

University software made with OpenXava

December 15, 2020

The best Java frameworks of 2020

November 23, 2020

Coruña Harbor Market with OpenXava

November 13, 2020

XavaPro 6.4.2 released

November 11, 2020

OpenXava 6.4.2 released

October 13, 2020

ZX-Ed: Open source database editor

September 24, 2020

XavaPro 6.4.1 released

September 23, 2020

OpenXava 6.4.1 released

September 7, 2020

From Excel to OpenXava

August 4, 2020

XavaPro 6.4 released

July 29, 2020

OpenXava 6.4 released

June 15, 2020

Online Management Systems for Schools

May 18, 2020

XavaPro 6.3.2 released

May 13, 2020

OpenXava 6.3.2 released

April 27, 2020

Cloud ERP with OpenXava

April 6, 2020

XavaPro 6.3.1 released

April 2, 2020

OpenXava 6.3.1 released

March 16, 2020

Intelligent Transport Systems with OpenXava

March 2, 2020

XavaPro 6.3 released

February 27, 2020

OpenXava 6.3 released

February 10, 2020

From Visual FoxPro to OpenXava

January 20, 2020

Maven support for OpenXava

January 13, 2020

Custom Closet Designs in New York

December 11, 2019

XavaPro 6.2.2 released

December 10, 2019

OpenXava 6.2.2 released

November 25, 2019

Modern web apps without JavaScript

November 6, 2019

XavaPro 6.2.1 released

November 5, 2019

OpenXava 6.2.1 released

October 14, 2019

Belgian Chocolate with OpenXava

October 2, 2019

New issue and bug tracker for OpenXava

September 30, 2019

XavaPro 6.2 released

September 25, 2019

OpenXava 6.2 released

September 16, 2019

Hospitals, Buses and Funeral Parlors

July 8, 2019

Looking for a OpenXava developer in Misiones

June 21, 2019

Looking for a OpenXava developer in Cartagena

June 18, 2019

XavaPro 6.1.2 released

June 17, 2019

OpenXava 6.1.2 released

June 10, 2019

English NGO helping Africa

May 16, 2019

XavaPro 6.1.1 released

May 14, 2019

OpenXava 6.1.1 released

May 6, 2019

Financial software in Mexico

April 3, 2019

XavaPro 6.1 released

March 27, 2019

OpenXava 6.1 released

March 11, 2019

An example of custom visual style

February 19, 2019

iArchiva: Enterprise Content Management

February 12, 2019

New OpenXava site

January 24, 2019

A new version of XavaPro is available

January 23, 2019

OpenXava 6.0.2 released

January 16, 2019

XavaPro Corporate edition

Español - 中文