Hibernate schema maintenance
Hibernate provides a nice way to keep your DB schema in sync with the model. At least 2 choices are available.
DWR, JSON, and IE6: beware keywords
Spent quite a bit of time investigating an “IE bug”. What happened: a particular AJAX request would work fine in Firefox but nothing would happen in IE6. Obvious steps were to monitor request and response (all fine), JS imports in files (all fine).
Hibernate, UTF-8 and SQL Server 2005
I found out today that MS Sql server seems to handle Unicode in a very special way. Instead of having some support a database or table level, each Unicode column have to be created as “national”. That is be either nchar, nvarchar or ntext.
A-Z 0-9 custom sorting in Lucene
The natural sort order for String fields is 0-9 A-Z so it seems a custom sorter is needed. I guess this is a normal request for any application that does a little sorting so I am surprised nothing came up during a search.
Problem when adding elements to a TreeSet – some elements are not added
I thought of sharing with you this little problem that I encountered when using a TreeSet to display an ordered list of items
Migrate Lucene annotations 3.2.1GA to Hibernate Search 3.0.0.Beta1: object removal
Changes in Hibernate Search are quite frequent, as it is in continued development. Today I found myself looking into a problem generated by migration from Hibernate-Lucene integration in 3.2.1.GA to the new Hibernate Search 3.0.0.Beta1.
What to do: Error reading tld listeners java.lang.NullPointerException
I’ve been bugged by this problem for some time now, so I decided to investigate a bit. The error shows up when tomcat is trying to reload the web application.
Handling DWR responses
Seeing this thread on DWR mailing list, I thought I’d post one way to deal with DWR response. The actual problem was initiated by someone asking what’s the best way to display status messages to users using DWR.
Enumerating LAN and WLAN clients on a Linux router
A while ago I was asked to take a WiFi router and add some bell and whistles to its interface. It was one of those small NAT boxes – nothing more than a LAN switch and a WLAN access point strapped to a 200 MHz system-on-a-chip running Linux. ucLinux, to be exact.