Can someone explain this section in the beginner's documentation https://struts.apache.org/primer.html ?
Questions include: What is meant by "mediated", "tied" "adapter" ? (I am a native English speaker, with years of programming experience including Java.) What is the difference between "represents" and "encapsulates"? These very different terms are uses seemingly as synonyms. "business logic and state" - again "logic" and "state" are very different concepts. Used here as synonyms. "Forwarded back" - oxymoron. "Loose coupling" - oxymoron. And, last but not least, "make applications significantly easier" - in the category of "to boldly go" i.e. split infinitive. Sorry to go all English teacher on you, but I really would like to understand what the writer was intending to say. He knows what he wants to say, but what he says is not what he intends, apparently. In the MVC/Model 2 design pattern, application flow is mediated by a central Controller. The Controller delegates requests - in our case, HTTP requests - to an appropriate handler. The handlers are tied to a Model, and each handler acts as an adapter between the request and the Model. The Model represents, or encapsulates, an application’s business logic or state. Control is usually then forwarded back through the Controller to the appropriate View. The forwarding can be determined by consulting a set of mappings, usually loaded from a database or configuration file. This provides a loose coupling between the View and Model, which can make applications significantly easier to create and maintain.
