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Document ID: 1412
Branch: main
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Name: Overview (unchanged)
Document Type: Cocoon Document (unchanged)
Updated on: 1/12/08 8:02:10 PM
Updated by: Grzegorz Kossakowski
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any dependencies on Cocoon core and can be used to introduce standardized
communication between any servlets.</p>
+++ <p class="note">You can easily check dependencies of Servlet Service
Framework
+++ yourself
+++ <a
href="http://cocoon.apache.org/subprojects/servlet-service/1.0/servlet-service-impl/1.0/dependencies.html";>here</a>.
+++ </p>
+++
<h1>Introduction to architecture</h1>
<p>Servlet Services Framework (SSF) is built around few concepts:</p>
(33 equal lines skipped)
bothering about it at development stage and makes it easy to configure
mount-path property at deployment stage.</p>
+++ <h2>Connecting servlets</h2>
+++
+++ <p>Servlet Service Framework establishes standarized way for communication
+++ between servlets that exploits standards like Servlet API and HTTP. In
order to
+++ communicate with other servlet you just need to make a
+++ <strong>connection</strong> to it and then just create a request that will
look
+++ the same as it would come from browser. The requested servlet doesn't have
to
+++ bother if request comes from another servlet or browser because it's totally
+++ transparent to it.</p>
+++
+++ <p align="center"><img src="daisy:1428"/></p>
+++
+++ <p>You should notice two things while look at the diagram:</p>
+++
+++ <ul>
+++ <li>DispatcherServlet is <strong>not</strong> involved in communication
between
+++ connected servlets (it is performed using
+++ <a
href="http://cocoon.apache.org/subprojects/servlet-service/1.0/servlet-service-impl/1.0/apidocs/org/apache/cocoon/servletservice/ServletConnection.html";>ServletConnection</a>
+++ object). It also means that <tt>mount-path</tt> property has no application
+++ here.</li>
+++ <li>Request's path is passed untouched.</li>
+++ </ul>
+++
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