Best of this Week Summary 30 August - 05 September 2010

• A "series of (currently 5) articles introduces Contexts and Dependency Injection for Java EE (CDI), a key part of the Java EE 6 platform. Standardized via JSR 299, CDI is the de-facto API for comprehensive next-generation type-safe dependency injection as well as robust context management for Java EE. Led by Gavin King, JSR 299 aims to synthesize the best-of-breed features from solutions like Seam, Guice and Spring while adding many useful innovations of its own".
  


• An extensive tutorial on creating a Spring MVC based mobile web application using MyEclipse. The IDE has already an iPhone skinned version built in, this tutorial shows how to add other mobile handsets like Android and Palm Pre. Basically: providing another style :)
  
  
  
• How to use Apache ActiveMQ in combination with Spring.
  


• Why ACID is hard to scale. and an argument that NoSQL/NoACID is the lazy way around these difficulties. Here's a post considering the performance argument for switching to a NoSQL database.
  


• Great interesting series on the progress of converting the native code BBC News iPhone/iPad app to a web app using HTML5.
  

Best of this Week Summary 15 March - 21 March 2010

• Twitter and Digg are moving from MySQL to Cassandra (a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model; a Facebook opensourced project). The reason for Digg for the move "is the increasing difficulty of building a high-performance, write-intensive application on a data set that is growing quickly, with no end in sight. This growth has forced them into horizontal and vertical partitioning strategies that have eliminated most of the value of a relational database, while still incurring all the overhead".
  Twitter has about the same reason: "No single points of failure", "Highly scalable writes (we have highly variable write traffic)", and "A healthy and productive open source community".
  Twitter tried HBase, Voldemort, MongoDB, MemcacheDB, Redis, Cassandra, and HyperTable amongst others before deciding to go with Cassandra. Interesting to read is how they slowly rollout Cassandra to limited sets of users.
  An introduction to Cassandra to get it up and running can be found here.
  
  


• A short post on how to implement Automatic testing Oracle Service Bus using Hudson, Maven and SoapUI.
  


• What to expect from HTML5 for webdevelopers.