Madrid, February 18th 2010. The day seems to be finished and it has been a pretty long day for me. This morning wake up at 7:30 o'clock, 8:30 breakfast at the Starbucks in front at the hotel and then straightforward to the Universidad Politécnica de Madrid (UPM) for the Romulus meeting and for the Romulus Workshop in the afternoon.
Today I've presented Roma Meta Framework to a bunch of students and some business IT men interested on the fast developing of Web Applications following the DDD approach, the Meta Framework philosophy and obviously Roma. We have had a hands-on session where almost all the attendees tried to follow me step by step on the building of a simple social application. I hope today the Roma community welcomes some new committers.
Below some photos shooted by Marco.
Anyone is in Madrid until Saturday morning?
Friday, February 19, 2010
Saturday, February 13, 2010
After some weekends of work I've in my hands the first version of Orient DB! I wrote a lot of Unit Tests that helped me a lot on the heavy refactoring in order to achieve the best performance than ever. The main features of Orient are:
- Full ACID: Optimistic transaction available with recovery of aborted transactions when the engine restarts. Tested with 1 billion of records even with simulated crashes during the commit phase. Pessimistic (with object-level locking) transaction in the next releases.
- Extremely light: less than 400kb of jar without any dependency with other libraries
- Super fast: stores 1,000,000 (yes one million) of records in 3.5 seconds on common hardware (my notebook). The KeyValue engine stores 100,000 entries indexed in 9 seconds. Lookups are so fast as memory access.
- tested up to 1 billion of records, but the limits are up to 9.223.372.036 Billions. Actually I think I'll never will be able to include this test in my Unit tests :-)
- A lot of cool features such as Asynchronous Queries, SQL language, Partitioning of data, native sharding support, and more
- Requires: Java5 or major and run on all the most used Operative Systems.