Tech Talk

Digital Transformation, Artificial Intelligence, Machine Learning, IoT, Big Data Analytics, Enterprise Architecture, Performance Engineering, Security, Design and Development tips on Java and .NET platforms.

Friday, February 29, 2008

Schema validation in webservices

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Recently a friend of mine was working on a .NET SOA project and was facing a peculiar problem.The XML Schema he was using had a lot of resti...
Wednesday, February 27, 2008

Problems with Struts SSLext

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One of the projects I was consulting on, was using the SSL-ext plugin module of Struts to redirect all secure resources to SSL. More informa...
Tuesday, February 26, 2008

Architecture Principles

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A member of my team recently asked me a simple question - "What are Architecture principles? And how are they different from the guidel...
Monday, February 25, 2008

Tower Servers -> Rack Servers -> Blade Servers

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The early servers were tower servers, so called because they were tall in height and took a lot of space and resulted in 'server-sprawl...
Friday, February 22, 2008

Are filters invoked when I do a RequestDispatcher.forward() ?

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Before Servlet 2.4 specification, it was not clear whether filters should be invoked for forwarded requests, included requests and requests ...

First steps for diagnosis of memory leaks in Websphere Application Server v6.1

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- Enable verbose GC. - If using Sun JVM, use the -XX:+HeapDumpOnOutOfMemoryError option to tell the VM to generate a heap dump if OutOfMemor...

What causes memory leaks in Java?

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We know that a memory leak can occur in Java applications when object references are unintentionally held onto after the references are no l...
Wednesday, February 13, 2008

Can U request Google, Yahoo to not index Ur site?

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I knew the way web crawlers/bots work to index your website. In fact Google also has a feature of submitting a SiteMap to better index the p...
Friday, February 08, 2008

Loosely typed vs Strongly typed webservices

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This article gives a good overview of the difference between a loosely coupled and strongly coupled webservice. Jotting down some points fro...

Smart clients....Has the pendulum swung back?

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Before the emergence of the 'web' most of the UI development was 'rich-thick-client' based on MS platforms such as VB, MFC, ...
Tuesday, February 05, 2008

Deep linking in AJAX applications

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AJAX appplications face the challenge of deep-linking because many times the page URL does not change, only the content changes using AJAX. ...
Sunday, February 03, 2008

Technical Architect responsibilities defined

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This weekend, I was going thru some of my old books in my library and found one book that was my favourite during my developer days - J2EE ...
Saturday, February 02, 2008

Basic tools for Solaris Performance monitoring

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One of the development teams I was consulting for was facing some performance problems on the Solaris platform. The Websphere JVM was hangi...
Friday, February 01, 2008

Capabilities of an ESB

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Just saw Mark Richards presentation on ESB. The presentation is simple and easy to understand without all the fancy jargon. The streaming vi...
Thursday, January 31, 2008

YWorks - products

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Came across this company that calls itself a 'diagramming company'. A list of their product offerings can be found here . Two intere...
Monday, January 28, 2008

Ready to go templates

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Believe it or not! There is a open-source project that aims to provide ready-to-go templates for all phases of a product or an application. ...
Monday, January 21, 2008

Difference between CPU time and elapsed time

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In Performance metrics jargon, we often come across two measurements: CPU time and total elapsed time. So whats the difference between the t...
Monday, January 14, 2008

Difference between different editions of VS 2008

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I was looking for a official comparision between the different VS2008 editions and thankfully I found it here . The express editions are dif...

ETag response header

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HTTP 1.1 introduced a new kind of cache validator i.e. ETag. ETags are unique identifiers that are generated by the server and changed every...

Parallel download in browsers

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We all know that browsers make multiple requests to servers for each and every resource that is contained in the page. But what is the max n...

YSlow for Firebug - cool cool extension

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I have been a die-hard fan of the 'Firebug' add-on to Firefox. Firebug has proved to be invaluable to me for diagnosing front-end pe...
Thursday, December 27, 2007

Difference beween WCM and ECM

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Doing some research on Content Management systems, I got a bit confused about the difference between Web content management systems and Ente...

Difference between a portal and a website

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A lot of my friends ask me the difference between portals and web-sites. Typically an organization would have both - a company website and a...
Wednesday, December 12, 2007

ThreadPool in Java

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Recently one of my friends was looking for a good Thread-pool implementation in Java and asked me for help. I had used Doug Lea's Thread...
Friday, December 07, 2007

Websphere SOA Stack

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A lot of people get confused between the different product offering by IBM in the Websphere space.The major products in the Websphere family...
Thursday, November 29, 2007

Oracle Fast Connection Failover for a RAC cluster

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Problem:Whenever one node of a Oracle RAC cluster goes down, some of the connections allocated to that node go stale in the connection pool....

3 easy steps to self-sign a Applet Jar file

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Found this link that explains how to self-sign an applet in 3 easy steps: 1. keytool -genkey -keystore myKeyStore -alias me 2. keytool -self...
Tuesday, November 27, 2007

FCKeditor

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Came across this beautiful AJAX control that can be used to emulate a HTML editor text box. http://www.fckeditor.net/ - worth a look.
Monday, November 26, 2007

Setting focus on the first field

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Whenever a HTML page is loaded, we often want to set the focus on the first input field of that page. Came across this Javascript code that ...
Tuesday, November 13, 2007

Reflection in Java-XML binding frameworks

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Almost all Java-XML binding frameworks use Java reflection to map Java objects to XML documents. I had used Castor and XMLBeans in our proje...
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