How It Works
Javaserver Faces is based on a component-driven UI design model, using XML files called view templates or Facelets views. Requests are processed by the FacesServlet, which loads the appropriate view template, builds a component tree, processes events, and renders the response (typically HTML) to the client. The state of UI components (and some other objects) is saved at the end of each request (called stateSaving (note: transient true)), and restored upon next creation of that view. Several types of state-saving are available, including Client-side and Server-side state saving.
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“The mind, in short, works on the data it receives very much as a sculptor works on his block of stone. In a sense the statue stood there from eternity. But there were a thousand different ones beside it, and the sculptor alone is to thank for having extricated this one from the rest.”
—William James (1842–1910)