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Revision 5268

Added by Matt Jones about 14 years ago

Fixed typos in metacat documentation.

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docs/dev/metacat/source/identifiers.txt
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  the syntax 'scope.object.revision', such as 'foo.34.1' (we will refer to
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  these as 'LocalIDs'). We now want Metacat to support identifiers that are
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  arbitrary strings, but still enforce uniqueness and proper revision
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  handling (referred to these as GUIDs).  Metacat must be able to accept
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  handling (refer to these as GUIDs).  Metacat must be able to accept
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  these strings as identifiers for all CRUD operations, and reference them
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  in search results.
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  ......




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and that LocalID has a constrained structure that includes semantics about


  		




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revisions in the identifier, it is difficult to wholesale replace it with


  		




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less-constrained string identifiers without re-writing much of Metacat.


  		




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Thus, our alternate strategy would is to wrap the Metacat APIs with a


  		




  
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Thus, our alternate strategy is to wrap the Metacat APIs with a


  		




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identifier resolution layer that keeps track of the unconstrained GUIDs and


  		




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maps them to constrained local identifiers which are used internally within


  		




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Metacat. The basic identifer table model is shown in Figure 1, while the


  		




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basic strategy for retrieving an object is shown in Figure 2.


  		




  
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basic strategy for retrieving an object is shown in Figure 2, creating an 


  		




  
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object is shown in Figure 3, updating an object in Figure 4, and deleting


  		




  
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an object is shown in Figure 5.


  		




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Identifier Table Structure


  		












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