Sunday, December 14, 2008

Glorious Hyderabd :)


State Central Library (AfzalGunj)


State Cavalry




State Banquet Honoring the viceroy of India


Parade Grounds Secunderabad


Palace Of Hyderabad Royal Family


Nizam's Personal Elephant


Nizam's Guard Buckle


Mozam Zahi Market Place


Macca Masjid (1948)


Haji's Departing(Nampally Station)


Dawakhana Unani charminar


AP Assembly Building

Friday, December 12, 2008

Nice Story about Fnds ..!

A story tells that two friends were walking through the desert.
During some point of the journey they had an argument, and one friend slapped the other one in the face.
The one who got slapped was hurt,
but without saying anything, wrote in the sand: TODAY MY BEST FRIEND SLAPPED ME IN THE FACE.

They kept on walking until they found an oasis , where they decided to take a bath.
The one who had been slapped got stuck in the mire and started drowning, but the friend saved him.
After he recovered from the near drowning,
he wrote on a stone: TODAY MY BEST FRIEND SAVED MY LIFE.

The friend who had slapped and saved his best friend asked him,
"After I hurt you, you wrote in the sand and now, you write on a stone, why?"

The other friend replied "When someone hurts us we should write it down in sand where winds of forgiveness can erase it away. But, when someone does something good for us, we must engrave it in stone ! where no wind can ever erase it.

" LEARN TO WRITE YOUR HURTS IN THE SAND AND T O CARVE YOUR BENEFITS IN STONE. "

They say it takes a minute to find a special person , an hour to appreciate them, a day to love them, but then an entire life to forget them. . Do not value the THINGS you have in your life.. But value WHO you have in your life!

ApplicationServer and WebServer ?

What is the difference between an application server and a Web server?

Taking a big step back, a Web server serves pages for viewing in a Web browser, while an application server provides methods that client applications can call. A little more precisely, you can say that:
A Web server exclusively handles HTTP requests, whereas an application server serves business logic to application programs through any number of protocols.
Let's examine each in more detail.
The Web server
A Web server handles the HTTP protocol. When the Web server receives an HTTP request, it responds with an HTTP response, such as sending back an HTML page. To process a request, a Web server may respond with a static HTML page or image, send a redirect, or delegate the dynamic response generation to some other program such as CGI scripts, JSPs (JavaServer Pages), servlets, ASPs (Active Server Pages), server-side JavaScripts, or some other server-side technology. Whatever their purpose, such server-side programs generate a response, most often in HTML, for viewing in a Web browser.
Understand that a Web server's delegation model is fairly simple. When a request comes into the Web server, the Web server simply passes the request to the program best able to handle it. The Web server doesn't provide any functionality beyond simply providing an environment in which the server-side program can execute and pass back the generated responses. The server-side program usually provides for itself such functions as transaction processing, database connectivity, and messaging.
While a Web server may not itself support transactions or database connection pooling, it may employ various strategies for fault tolerance and scalability such as load balancing, caching, and clustering—features oftentimes erroneously assigned as features reserved only for application servers.
The application server
As for the application server, according to our definition, an application server exposes business logic to client applications through various protocols, possibly including HTTP. While a Web server mainly deals with sending HTML for display in a Web browser, an application server provides access to business logic for use by client application programs. The application program can use this logic just as it would call a method on an object (or a function in the procedural world).
Such application server clients can include GUIs (graphical user interface) running on a PC, a Web server, or even other application servers. The information traveling back and forth between an application server and its client is not restricted to simple display markup. Instead, the information is program logic. Since the logic takes the form of data and method calls and not static HTML, the client can employ the exposed business logic however it wants.
In most cases, the server exposes this business logic through a component API, such as the EJB (Enterprise JavaBean) component model found on J2EE (Java 2 Platform, Enterprise Edition) application servers. Moreover, the application server manages its own resources. Such gate-keeping duties include security, transaction processing, resource pooling, and messaging. Like a Web server, an application server may also employ various scalability and fault-tolerance techniques.