Upgrading to Spring 3.0.0.M3 and Spring Security 3.0.0.M1

A short two months back I posted an article describing how to upgrade to Spring 3.0 M2. Spring folks are releasing at breakneck speed and so I got busy again upgrading spincloud.com to Spring 3.0 M3 released at the beginning of May. Just yesterday (June 3rd) the team released Spring Security 3.0 M1 and I… Continue reading Upgrading to Spring 3.0.0.M3 and Spring Security 3.0.0.M1

Proposal to standardize the Level 2 query cache configuration in JPA 2.0

Level 2 cache is one of the most powerful features of the JPA spec. It’s a transparent layer that manages out-of-session data access and cranks-up the performance of the data access tier. To my knowledge it has been first seen in Hibernate and was later adopted by the then-emerging JPA spec (driven mostly by the… Continue reading Proposal to standardize the Level 2 query cache configuration in JPA 2.0

Reviewing Google AppEngine for Java (Part 1)

When Google announced that Java is the second language that the Appengine will support I almost didn’t believe it given the surge of the new languages and the perception that Java entered legacy but the JVM is a powerful tried-and-true environment and Google saw the potential of using it for what it is bound to… Continue reading Reviewing Google AppEngine for Java (Part 1)

“Thinking in” what?

“Thinking in…” anything has been a marketing quirk for a while now, being used and abused from the field of language learning to computer science. Thinking in Java is the title of a well known book written by Bruce Eckel. I am passing a “Think in Spanish” course flyer ad every time I stroll on… Continue reading “Thinking in” what?

Selecting location data from a spatial database

I have been thinking to write about this subject a while back when project Spincloud was still under development. I was even thinking about making this the first post on my blog. The idea is simple: you have location-based data (POIs for instance) stored in some database (preferably a spatial DB) and now you want… Continue reading Selecting location data from a spatial database

Spincloud Labs: Political boundaries overlay in Google maps (Part 2)

Update Sep.21.2011: I took the code in the two parts and made a github project off of it called Gborders. The code is simpler and there are more options to generate the borders overlay based on geographic regions. Happy forks! In Part 1 we imported world political borders into a database table. In this second… Continue reading Spincloud Labs: Political boundaries overlay in Google maps (Part 2)