Simple Object Access Protocol (SOAP)

SOAP stands for Simple Object Access Protocol used to create a format for sending messages .It's platform and language independent

SOAP is based on XML

SOAP provides a way to communicate between applications running on different operating systems, with different technologies and programming languages.

Syntax Rules

Here are some important syntax rules which must contains in SOAP message:

A SOAP message Must be encoded using XML ,Must use the SOAP Envelope namespace ,must use the SOAP Encoding namespace ,must NOT contain a DTD reference,must NOT contain XML Processing Instructions

In the above diagram display the simple format of SOAP message.

Web Services in Nutshell

Web services are services ,usually including some combination of programming and data, but possibly including human resources as well.
These services are made available from a business's Web server for Web users or other Web-connected programs.

Providers of Web services are generally known as application service providers.

Users can access some Web services through a peer-to-peer arrangement.

Some services can communicate with other services and this exchange of procedures and data is generally enabled by a class of software known as middleware.


The basic Web services platform is XML + HTTP.

XML provides a language which can be used between different platforms and programming languages and still express complex messages and functions.

The HTTP protocol is the most used Internet protocol.


Web services platform elements:

SOAP (Simple Object Access Protocol)
UDDI (Universal Description, Discovery and Integration)
WSDL (Web Services Description Language)


XML is used to tag the data,
SOAP is used to transfer the data,
WSDL is used for describing the services available
UDDI is used for listing what services are available.


Web services allow organizations to communicate data without intimate knowledge of each other's IT systems behind the firewall.

Unlike traditional client/server models, such as a Web server/Web page system, Web services do not provide the user with a GUI. Web services instead share business logic, data and processes through a programmatic interface across a network. The applications interface, not the users. Developers can then add the Web service to a GUI (such as a Web page or an executable program) to offer specific functionality to users.


Web services allow different applications from different sources to communicate with each other without time-consuming custom coding, and because all communication is in XML, Web services are not tied to any one operating system or programming language. For example, Java can talk with Perl, Windows applications can talk with UNIX applications.

James Gosling leaves Oracle

James Gosling, the creator of the Java programming language, has resigned from Oracle,

when this news getting into my mind.I feel to write down in my blog.That why I write it down in my blog.James is close to me.Because I love and passion with J2EE technologies.

Gosling resigned on April 2 2010.

Gosling says "As to why I left, it's difficult to answer"

Gosling was the chief technology officer for Oracle's client software group and, before that, the chief technology officer of Sun's developer products group.

you can read nice article in the businessweek web site.I have add the url related to that article.

http://www.businessweek.com/idg/2010-04-10/java-founder-james-gosling-leaves-oracle.html

Good luck James Gosling ... !

Ford Festiva Car

My first car is Ford Festiva.I bought my car in 2008 November.

In Sri Lanka there are lot of ford festiva cars available.David Persis is the Dealer in Sri Lanka.After taking the car i had put a inspection from there.Also I have done a service from there.They service is good.I used to buy spare parts from New Rainbow shop at Maradana.

before buy this car some people says ford is a not good item.If you really need vehicle buy a Toyota or Nissan one,but not Ford.In Sri Lanka famous brand for vehicle are Toyota and Nissan.

But during the past years usage i believe ford is good brand.Ford vehicle are durable ,not like Toyota or Nissan.

Also Ford festiva's fuel consumption is good.I can go 15 kms per liter outside the city limit.

I want pass the message that Ford Festiva is not a bad vehicle.It's really good.Buy one and see the different.Do not think Toyota or Nissan is the only option.

commit Vs Rollback

commit - In database Management commit refers to making a set temparer changes into permanent.

rollback - In database technologies, a rollback is an operation which returns the database to some previous state.

Before writing email to some one .................

1. To whom i am write
- need to identify what is his or her name and Designation
- what it is his gender
- whether she is Mrs or Miss
- correct spelling of his or her name

2. Subject
- what is the subject i am writing on
3. what are the points to be addresses
4. what is the plan

5. does it Descriptive one or not

6. Action or feedback getting on

7. What is the Sequence i am using to write

8. Do you need any support document

9. Is it one person or more person i am writing this email

Note:- check write down the possible answer i can get as a reply to this email.according to that answer organized the questions.

Also in the first two lines you should be able to tell the reader why should I am write this email.

Asynchronous Vs Synchronous

synchronous :-

occurring or Start or existing at the same time

asynchronous :-

not synchronous; That means not occurring or existing at the same time.