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Hadoop! Posted by tomwhite on February 08, 2006 at 01:49 AM | Comments (4) In a previous blog I wrote about Nutch's MapReduce implementation, for distributed processing of massive data sets. This, and the closely related Nutch Distributed File System (renamed Hadoop Distributed File System), have now been moved into a standalone project called Hadoop. According to Doug Cutting, who created Hadoop
Parsing command line options in JDK 5.0 style: args4j Posted by kohsuke on May 11, 2005 at 12:20 AM | Comments (25) Parsing command line options in your program has always been a boring work; you loop through String[] and write a whole bunch of arg.equals("-foo") and arg.equals("-bar"). There are some libraries that attempt to solve this, such as Apache Commons CLI. I tried many of those, but I di
MapReduce Posted by tomwhite on September 25, 2005 at 10:36 PM | Comments (3) Doug Cutting has done it again. The creator of Lucene and Nutch has implemented (with Mike Cafarella and others) a distributed platform for high volume data processing called MapReduce. MapReduce is the brainchild of Google and is very well documented by Jeffrey Dean and Sanjay Ghemawat in their paper MapReduce: Simplifi
Posted by ss141213 on December 15, 2005 at 08:59 AM | Comments (17) The Java Persistence API is the standard API for the management of persistence and object/relational mapping in Java EE 5 platform. Every Java EE 5 compatible application server will support this API. Earlier I had written about how to use Java Persistence API in a web application. This time I shall extend the example to include E
Posted by kgh on July 10, 2005 at 05:31 PM | Comments (4) Here are the PDF slides for the JavaOne 2005 Technical Keynote (450 K). The Technical Keynote is our attempt to provide a high level overview of the roadmaps and big directions for the core Java platform. The rough agenda was: JavaTM SE Roadmaps (Graham Hamilton) Mustang, Dolphin, and more JavaTM EE Roadmaps (Bill Shannon) Java EE 5, EJB 3.
Controlling iTunes from Java: a better Java/COM integration with Tiger Posted by kohsuke on January 28, 2005 at 06:27 AM | Comments (4) iTunes for Windows comes with a COM API that lets you access its playlists, track information, artworks, and everything. You can even control the iTunes window size. For those who don't know COM, it stands for Component Object Model, a standard programming infras
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