OpenJPA is an implementation of the JPA (Java Persistence API) standards. Initially, I used OpenJPA with Derby which is also known as JavaDB. It works well. However, when i tried to use MySQL as the backend database, I encountered a few issues. Here are a few small tips i would like to share when using [...]
Displaying posts written by
robin
who has written 14 posts for Robin's Tech Tips.
Oct
14
2009
14
2009
Sep
10
2009
10
2009
Methods/Software to convert RMVB to AVI
Most current DVD players support playback of Divx or Xvid (usually files with .avi extention) encoded files, but few supports RMVB files which are in real media format.
If you have some RMVB files and want to play them on the DVD player, Then you need to convert the RMVB format to AVI.
Currently, I found out [...]
Sep
2
2009
2
2009
Use Ant to Generate ChangeLogs From CVS ang Group by Date
Since version 1.6.1, Ant, the java build tool, has a core task called “cvschangelog“. It is quite useful to use this task to grab a list of recent changes committed to the CVS repository. The output of this task is in XML format. Something like the following:
<changelog>
<entry>
<date>2009-09-02</date>
<time>12:00</time>
<author>robin</author>
<file>
<name>test/ant/task/ChangeLog.txt</name>
<revision>1.2</revision>
<prevrevision>1.1</prevrevision>
[...]
Jul
23
2009
23
2009
JSP Expression Language in GWT’s embedded Jetty
JSP expression language (EL) is quite handy. but it only works when you indicate your web application is using version 2.4 or higher. That means you have the following in your <Your-Web-App>/WEB-INF/web.xml:
<?xml version=”1.0″ encoding=”UTF-8″?>
<web-app id=”WebApp_ID” version=”2.4″ xmlns=”http://java.sun.com/xml/ns/j2ee” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd”>
…
Google Web Toolkit (GWT) is a handy Ajax Web application development tool. Since version 1.6.4, GWT [...]
Apr
3
2009
3
2009
List of Personal Finance Software / Websites for Money Management
It’s a good habit to keep an eye on your money and know how much you have spent in the past and how much you can spend in the future.
Although bank statements, credit card statement or online bank accounts provide all such information, these pieces of information scatter here and there and you lose track [...]