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Author:tedf

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Date:2011-05-12T01:58:13.000000Z


git-svn-id: https://svn.eiffel.com/eiffel-org/trunk@891 abb3cda0-5349-4a8f-a601-0c33ac3a8c38
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tedf
2011-05-12 01:58:13 +00:00
parent 5f8d313246
commit eee175bce7
2 changed files with 10 additions and 2 deletions
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documentation/current/solutions/concurrent-computing/concurrent-eiffel-scoop/scoop-examples/observer-pattern.wiki
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@@ -24,7 +24,7 @@ The pre-parse processing gives the <code>EIFFEL_PARSER_POOL</code> an agent that
When an <code>EIFFEL_PARSER</code> finishes with a file, it calls the agent for post-parse processing. In this way, it notifies the instance of <code>DEGREE_5</code> that it is done with that file.
So, it is here that elements of the observer pattern are shown. In more typical observer pattern examples, there is one observed object an a set of one or more observers. But here, there is one observer, the instance of <code>DEGREE_5</code>, and many observable objects, the parsers. Also, instead of making calls directly to the observer, the observed objects apply the agents that have been provided by the observer.
So, it is here that elements of the observer pattern are evident, just in a slightly non-typical way. In more typical observer pattern examples, there is one observed object and a set of one or more observers. But here, there is one observer, the instance of <code>DEGREE_5</code>, and many observable objects, the parsers. Also, instead of making calls directly to the observer, the observed objects apply the agents that have been provided by the observer.