How the filter chain works?

Going back to the filter chain configuration in my last post, you can see a chain filters configured as shown below:
<bean id="springSecurityFilterChain" class="org.springframework.security.web.FilterChainProxy">
<sec:filter-chain-map path-type="ant">
<sec:filter-chain pattern="/SkyPhotoWeb/**" filters=" securityContextPersistenceFilterWithASCFalse, basicAuthenticationFilter, exceptionTranslationFilter, filterSecurityInterceptor" />
<sec:filter-chain pattern="/**" filters=" securityContextPersistenceFilterWithASCTrue, formLoginFilter, exceptionTranslationFilter, filterSecurityInterceptor" />
</sec:filter-chain-map>
</bean>
Let us assume that a request is send as http://www.skyphoto.com/SkyPhotoWeb/dosomething.html the request runs through the filters as shown in picture below:

In my next post I will explain all these and few other important filters in greater detail.