Archive for July, 2008
Thursday, July 31st, 2008
If you're using JSF and need a converter for converting UI elements (typically java.util.Date) to your domain object's date field (typically java.sql.Date), here's the code snippet,
[java]
public class DateConverter implements Converter, Serializable {
public Object getAsObject(FacesContext context, UIComponent component, String value) {
java.sql.Date sqlDate = null;
...
Posted in CodeSnippets, JSF, Java | No Comments »
Monday, July 28th, 2008
I read this today; I didn't know you could manipulate gmail addresses in such a way.
Posted in Tools, Useful Links | 1 Comment »
Monday, July 21st, 2008
I had a chance to attend Mark Fisher's presentations a couple of times before at NEJUG. This time around, it was a local Java Meetup group in Cambridge. He's a very humble and knowledgeable guy about a lot of things, from Spring to Hibernate to Seam, to Scala & MDA!
With ...
Posted in Events, Java, Spring | No Comments »
Sunday, July 20th, 2008
It's insanely easy to write an interceptor in EJB3. Here's a tutorial/example code for an interceptor which collects statistics info around a method invocation.
[java]import java.util.Collection;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
import org.apache.commons.lang.time.StopWatch;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class StatisticsInterceptor {
private static final Log log = LogFactory
.getLog(StatisticsInterceptor.class);
@AroundInvoke
@SuppressWarnings("unchecked")
public Object intercept(InvocationContext ctx) throws Exception {
StopWatch stopWatch = new StopWatch();
stopWatch.start();
Object result ...
Posted in EJB3, Java, Seam | No Comments »
Thursday, July 17th, 2008
Problem: You want to use groovy all the time, but ignorant (but paying) forces keep you writing verbose tedious Java code instead.
Solution: Use groovy instead of shell scripts! In large Java development projects, developing in a local environment comes with a maddening list of pulling levers, pushing buttons, and spinning ...
Posted in Groovy, Tools | 3 Comments »
Wednesday, July 16th, 2008
[java]public class MyClass {
private ArrayList list = new ArrayList();
public void addFoo( Object foo ) {
list.add( foo );
}
public void processFoo( Object foo ) {
// Get foo out of the list Object
fooRef = list.get( foo );
// Do something with fooRef ...
// Done with fooRef, destroy it
fooRef = null;
}
}[/java]
In this example, the addFoo() ...
Posted in Java | No Comments »