[Jboss-dev-forums] [Design of JBoss Portal] - Re: JBoss Portal 2.0 and Oracle ADF Faces

[sven.schulz <nu...@jb...>]

Oh, I am not deeply involved. However I try to explain, what I think it does. When a complex component like a tree is rendered external resources like images for the decorations are necessary. These resources are provided by a  filter (so it's a filter, not a servlet) that is configured in web.xml

    
  | <!-- MyFaces Extensions Filter -->
  | <filter>
  | <filter-name>extensionsFilter</filter-name>
  | <filter-class>org.apache.myfaces.component.html.util.ExtensionsFilter</filter-class>
  | </filter>
  | 
  |   | 
  |   | The filter is configured to be invoked whenever the request URL matches /faces/*. 
  |   | 
  |   | Here is the javadoc of the class:
  |   | 
  |   | anonymous wrote : This is a utility class to render link to resources used by custom components. Mostly used to avoid having to include  in the head of the pages before using a component.anonymous wrote : 
  |   |   |   | 
  |   |   |   | I think it is not only used for images but also for Javascript and the like.
  |   |   |   | 
  |   |   |   | Another use case of the filter is to handle file uploads (multipart requests).

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