Thus the rest of the application knows little about message formats, messaging
channels, or any other details of communicating with other applications when they
exchange messages. Since endpoints do this message normalization functionality, a
message endpoint code is custom to both the application and the messaging system's
client API.
When we write a program to a messaging API such as JMS, we're developing
endpoint code. This involves either developing low-level plumbing code by hand
or using appropriate client APIs and run-time tools to automatically generate
code. Later, we will see that a whole lot of endpoints are available, as off the shelf
components along with message bus products like ServiceMix. In this chapter, we
will look at raw forms of binding service. This example help us to understand what
we actually mean by binding.
Apache SOAP Binding
As said earlier, without using a JBI or an ESB framework, let us see binding in action
using the Apache open-source SOAP stack.
Chapter 4
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A Word about Apache SOAP
Apache SOAP is an implementation based on the SOAP submission to W3C (World
Wide Web Consortium).
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