Sunday, January 15, 2012

Java Generics #1 : Subtyping using wildcard with extends

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Generics is one of those more complicated language features in Java that is not well understood by many programmers. Many avoid it altogethe...
1 comment:
Sunday, December 18, 2011

Single Sign On for the cloud: SAML & OpenId

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When accessing different applications owned by different organizations, having to authenticate everytime you go from one application to anot...
Saturday, November 19, 2011

What is NoSQL ?

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NoSQL is a term used to refer to a class of database systems that differ from the traditional relational database management systems (RDBMS)...
3 comments:
Tuesday, October 18, 2011

Apache Shiro : Application Security Made Easy

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Considering that JAVA is over 10+ years old, the number of choices for application developers that need to build authentication and authoriz...
1 comment:
Saturday, September 10, 2011

Spring and Declarative Transactions

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A transaction is a unit of work that has ACID (atomic, consistent, isolated and durable) properties. Atomic means that the changes all happe...
Sunday, July 24, 2011

Handling completion of concurrent tasks

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In the last blog on Java Executors I introduced Executors which have been the preferred way of writing multi-threaded programs in java sinc...
1 comment:
Sunday, June 5, 2011

Java Executors

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The old way of creating threads in Java was to extend the java.lang.Thread class or to implement the java.lang.Runnable interface and pass i...
1 comment: