DWR is a great technology to add interactive AJAX calls to your application. The best thing about DWR is, it works with wide range of browsers and you don't need to bother about browser dependent code. While the run time DWR generate the intermediate java-script to call your server methods. But selecting DWR is a tricky task and you need to take care of the following aspects of your application....
A Technology Blog About Code Development, Architecture, Operating System, Hardware, Tips and Tutorials for Developers.
Friday, August 31, 2012
Thursday, August 30, 2012
Workspace in use or cannot be created - Eclipse
Eclipse is saying that the "Workspace in use or cannot be created" in Ubuntu. I say ok, probably a lock file was left behind and so I do:
rm ~/workspace/.metadata/.lock
No error (so the file was left behind), yet the problem is not solved. I tried clearing out the workspace path. Same problem.
Googleing, I found this post, so I ran:
sudo gedit /usr/share/eclipse/configuration/.settings/org.eclipse.ui.ide.prefs
removed...
Touch pad is not working on Ubuntu 11.04
Following is blog post with respect to the problem which I faced on my dell vostro laptop with Ubuntu 11.04. My mouse pad(Touch pad) was not working after login screen.
After some googling I found forum articles which describing same problem. Those peoples have different version of Ubuntu with different manufactures of laptop. But I didn't found an exact cause of this issue.
Anyways following...
Tuesday, August 14, 2012
SPEED UP WITH MEMCACHED
10:21:00 AM
Posted by Satish
AJAX, EVENT DELEGATION, EXECUTOR FRAMEWORK, GARBAGE COLLECTION, J2EE, JAVA, JVM, LINUX, MEMCACHED, OOPS, OPEN SOURCE, PERFORMANCE, REDIS, SPRING, THREAD, TOMCAT, UBUNTU
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Is your website running into performance bottlenecks? Does the database or backend feel like a really expensive resource, even though you’ve got a huge cluster set up to improve parallel processing? Read on to find out why you should be including Memcached, in your SOA based application.
Caching is a concept that almost all developers use in some form or the other in their applications. It’s basically...
Saturday, August 11, 2012
THIRD PARTY MEMORY VS JVM MEMORY
6:56:00 PM
Posted by Satish
CONCURRENCY, EXECUTOR FRAMEWORK, J2EE, JAVA, JVM, LINUX, MEMCACHED, OOPS, OPEN SOURCE, PERFORMANCE, REDIS, SPRING, THREAD, UBUNTU
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Advantages of JVM memory over third party memory:
JVM memory is faster (no network).
JVM memory won’t require serialization, you have Java objects available to you.
Advantages of third party memory over JVM memory:
It can be accessed by more than one application server, so your cache will be shared among all your app servers.
It can be accessed by a variety of different servers, so long...