[GitHub] [jena] Aklakan commented on pull request #1475: Improved implementation of PrefixMapStd

[GitBox <gi...@apache.org>]

Aklakan commented on PR #1475:
URL: https://github.com/apache/jena/pull/1475#issuecomment-1250092741

   I converted back to draft because I have some pending updates which I need to benchmark against the well-working parts (i.e. IRIs with / or #) of the original PrefixMapStd first in order to determine whether performance-wise it would make sense to include them.
   
   The general idea is to have PrefixMap implementation that auto-adapts to a given workload - such as parsing lots of queries without the overhead of updating reverse-lookup structures as well as updating them on-demand upon writing out RDF.
   
   In essence the direction I am investigating is about building/updating the reverse-lookup (iri-to-prefix) structures lazily (upon abbreviating). This would buffer prefix-iri inserts/deletions similar to your BufferingPrefixMap; upon abbreviate only the delta is materialized into the reverse-lookup structures.
   


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