Changes between Version 2 and Version 3 of ApertureOpeningDocuments


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Timestamp:
10/12/05 14:14:20 (19 years ago)
Author:
anonymous
Comment:

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  • ApertureOpeningDocuments

    v2 v3  
    33Besides crawling resources, we should also be able to open them in their default viewer. 
    44 
    5 At first this may look like a job for the !DataAccessor, which after all has knowledge about how to load the stream from the physical source. 
     5At first this may sound like a job for the !DataAccessor, which after all has knowledge about how to load the stream from the physical source. 
    66 
    77On second thought, I believe that for the opening of files you need some other service, parallel to !DataAccessor, that is also scheme-specific and that takes care of opening the files. Reasons: 
    88 
    9  * !DataAccessors actually retrieve the files/webpages/..., which is often not necessary for some !DataObject openers. For example, for opening a local file you can instruct Windows to do just that. Similarly, a web page can be retrieved and shown by a web browser, there is no need for us to retrieve the contents and feed it to the browser. 
     9 * !DataAccessors actually retrieve the files/webpages/..., which is often not necessary for some !DataObject openers. For example, for opening a local file you can instruct Windows to do just that. Similarly, a web page can be retrieved and shown by a web browser, there is no need for our codebase to retrieve the contents and feed it to the browser. 
    1010 
    1111 * There may be several alternative ways of opening a resource. For example, the java.net JDIC project contains functionality for opening files and webpages, we have our own classes to do that, there may be customer-specific implementations, etc. 
    1212 
    13 This may be a good reason to decouple this functionality from the DataAccessor? and run it in parallel.  
     13This may be a good reason to decouple this functionality from the !DataAccessor and run it in a parallel service.