Apache Axis2 - Concept

endpoint -- the full URL is http://www.ttdev.com/SimpleService

namespace -- just like a Java package, but it is not in a dot format like com.ttdev.foo; it is in the format of a URL.

full name -- is called a "QName (qualified name)"
             the full name of the operation will be "concat" in namespace http://ttdev.com/ss.
             the name "concat" is called the "local name".

a method call is called an "input message" and a parameter is called a "part". The return value is called an "output message" and may contain multiple parts.



RPC style web service

Document style web service

Port type -- is like a Java class and each operation in it is like a static method. The name of a port type must also be a QName

Binding -- a port type may allow you to access it using different formats. The message format that you have seen is called the "Simple Object Access Protocal (SOAP)" format.

a port type may allow the message to be carried (transported) in an HTTP Post request or in an email. Each supported combination is called a "binding"

SOAP + HTTP is the most common combination.

Port  = binding x host + ...

Target namespace -- There is a sigle namespace for a web service to put the names into.


WSDL Web Services Description Language

SEI -- service endpoint interface