Continuing with my series on the Java 7 java.nio.file package, this time covering the DirectoryStream interface. In this post we are going implement our own DirectoryStream that will iterate over the files in an entire directory tree, not just a single directory. Our goal in the end is to have something that works similar to [...]
What’s New In Java 7: Copy and Move Files and Directories
January 30, 2012 By Leave a Comment
This post is a continuation of my series on the Java 7 java.nio.file package, this time covering the copying and moving of files and complete directory trees. If you have ever been frustrated by Java’s lack of copy and move methods, then read on, for relief is at hand. Included in the coverage is the [...]
What’s new in Java 7 – The (Quiet) NIO File Revolution
January 20, 2012 By 16 Comments
Java 7 (“Project Coin”) has been out since July of last year. The additions with this release are useful, for example Try with resources – having closable resources handled automatically from try blocks, Strings in switch statements, multicatch for Exceptions and the ‘‘ operator for working with generics. The addition that everyone was anticipating the [...]
Event Programming with Google Guava EventBus
January 6, 2012 By 15 Comments
It’s a given in any software application there are objects that need to share information in order to get work done. In Java applications, one way of achieving information sharing is to have event listeners, whose sole purpose is to take some action when a desired event occurs. For the most part this process works [...]
Guava Functions & Java 8 Lambdas
December 23, 2011 By 8 Comments
I recently read Brian Goetz’s The State of the Lambda and after reading that article I wanted to try using Java 8 lambda expressions. In his article, Brian goes on to describe interfaces that have one method as “functional” interfaces. Functional interfaces are almost always used as anonymous classes, with the ActionListener being the canonical [...]
Google Guava Cache
December 14, 2011 By 9 Comments
This Post is a continuation of my series on Google Guava, this time covering Guava Cache. Guava Cache offers more flexibility and power than either a HashMap or ConcurrentHashMap, but is not as heavy as using EHCache or Memcached (or robust for that matter, as Guava Cache operates solely in memory). The Cache interface has [...]
Google Guava – Futures
November 29, 2011 By 9 Comments
This post is a continuation of my series on Google Guava, this time covering Futures. The Futures class is a collection of static utility methods for working with the Future/ListenableFuture interface. A Future is a handle to an asynchronous task, either a Runnable or Callable, that was submitted to an ExecutorService. The Future interface provides [...]
Lucene Thrift and Ruby
May 18, 2011 By 1 Comment
This post is going to demonstrate thrift usage by searching a Lucene index from Ruby. Thrift In a Nutshell Essentially thrift is a serialization and RPC framework that allows you to communicate between programs that are not necessarily written in the same language. Thrift is used by defining data types and services in a .thrift [...]
JEE 6 and Spring MVC
December 8, 2010 By 1 Comment
With the release of JEE 6 and the Servlet 3.0 specification came support for asynchronous servlets. While continuations and Comet are not new, the fact that it is now part of the servlet specification, and could be “baked in” to an application, piqued my curiosity. Although I have not used plain servlets in development for [...]
