Changes between Version 2 and Version 3 of ApertureDataSource


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Timestamp:
10/12/05 13:03:01 (19 years ago)
Author:
anonymous
Comment:

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  • ApertureDataSource

    v2 v3  
    11= DataSources et al = 
    22 
    3 The central parts in the architecture are currently DataSource, DataCrawler, 
    4 DataAccessor and DataObject. Together they are used to access the contents of 
     3The central parts in the architecture are currently !DataSource, !DataCrawler, 
     4!DataAccessor and !DataObject. Together they are used to access the contents of 
    55an information system, such as a file system or web site. 
    66 
    7 A DataSource contains all information necessary to locate the information 
    8 items in a source. For example, a FileSystemDataSource has a set of one or 
     7A !DataSource contains all information necessary to locate the information 
     8items in a source. For example, a !FileSystemDataSource has a set of one or 
    99more directories on a file system, a set of patterns that describe what files 
    10 to include or exclude, etc. 
     10to include or exclude, etc. For the rest it is completely passive. 
    1111 
    12 A DataCrawler is responsible for actually accessing the physical source and 
     12A !DataCrawler is responsible for actually accessing the physical source and 
    1313reporting the individual information items as DataObjects. Each DataObject 
    1414contains all metadata provided by the data source, such as file names,